Sourcing Guide Contents
Industrial Clusters: Where to Source Ac Mccb Manufacturers In China
Professional B2B Sourcing Report 2026
Title: Deep-Dive Market Analysis: Sourcing AC MCB & MCCB Manufacturers in China
Prepared For: Global Procurement Managers
Prepared By: SourcifyChina – Senior Sourcing Consultants
Date: March 2026
Executive Summary
China remains the world’s leading manufacturing hub for low-voltage electrical equipment, including AC Miniature Circuit Breakers (MCBs) and Molded Case Circuit Breakers (MCCBs). As global demand for reliable, cost-effective electrical protection devices rises—driven by infrastructure modernization, renewable energy integration, and smart grid development—China continues to offer a competitive sourcing advantage.
This report provides a strategic deep-dive into the key industrial clusters producing AC MCBs and MCCBs in China, with a comparative analysis of Guangdong, Zhejiang, Jiangsu, and Anhui provinces—highlighting regional differences in price, quality, and lead time. Recommendations are tailored for procurement managers aiming to optimize cost, reliability, and supply chain resilience.
Market Overview: AC MCB & MCCB Manufacturing in China
China accounts for over 65% of global low-voltage switchgear production, with AC MCBs and MCCBs being among the most exported electrical components. The domestic market is highly competitive, featuring a mix of state-owned enterprises (SOEs), established private manufacturers, and emerging OEM/ODM suppliers serving both domestic and international clients.
Key product standards followed:
– GB/T 14048 (Chinese national standard, aligned with IEC 60947)
– IEC 60898-1 (for MCBs)
– CB, CE, CCC, RoHS certifications common among export-focused suppliers
Top applications:
– Residential & commercial building infrastructure
– Industrial automation & control panels
– Solar PV systems and energy storage
– Data centers and telecom facilities
Key Industrial Clusters for AC MCB & MCCB Manufacturing
The production of AC MCBs and MCCBs is concentrated in four primary industrial clusters, each with distinct advantages in technology, labor, and supply chain integration:
| Province | Key Cities | Cluster Characteristics | Major Suppliers (Examples) |
|---|---|---|---|
| Zhejiang | Wenzhou, Yueqing | Epicenter of electrical equipment manufacturing; highest concentration of MCCB/MCB factories; strong R&D and export orientation | CHINT, Delixi, Humin, Sino-Science |
| Guangdong | Shenzhen, Guangzhou, Dongguan | High-tech integration; proximity to Hong Kong logistics; strong in smart circuit breakers and OEMs | ABB China (joint ventures), Schneider Electric (Guangdong plants), GREE Electric components |
| Jiangsu | Suzhou, Wuxi, Nanjing | Advanced manufacturing base; strong industrial automation integration; high-quality tier-1 suppliers | Siemens Energy (Nanjing), Legrand (Suzhou), Hager Group JV |
| Anhui | Hefei, Wuhu | Emerging low-cost manufacturing zone; government incentives; growing OEM presence | JSCC Group, Hefei Huadian |
Note: Wenzhou (Zhejiang) alone hosts over 2,000 electrical component manufacturers, with Yueqing dubbed the “Capital of Electrical Equipment in China.”
Comparative Regional Analysis: MCB/MCCB Manufacturing Hubs
The following table compares the four key provinces based on price competitiveness, quality consistency, and average lead time—key decision drivers for global procurement teams.
| Region | Price Competitiveness (1–5) | Quality Consistency (1–5) | Avg. Lead Time (Standard Orders) | Key Strengths | Key Risks |
|---|---|---|---|---|---|
| Zhejiang | 4.5 | 4.0 | 18–25 days | High supplier density, strong export experience, IEC-compliant production | Variable quality among small OEMs; requires strict vetting |
| Guangdong | 3.5 | 4.8 | 20–30 days | High R&D, smart device integration, reliable logistics | Higher labor and production costs; premium pricing |
| Jiangsu | 4.0 | 5.0 | 22–28 days | Premium quality, strong international partnerships, automation | Limited small-batch flexibility; longer NRE for customization |
| Anhui | 5.0 | 3.5 | 25–35 days | Lowest cost, government subsidies, scalable capacity | Developing supply chain; inconsistent certification compliance |
Scoring Notes:
– Price Competitiveness: 5 = Most competitive pricing; 1 = Premium pricing
– Quality Consistency: 5 = High consistency, ISO/IEC certified; 1 = Variable, requires QA oversight
– Lead Time: Based on standard 10,000-unit orders, including production and inland logistics to port
Strategic Sourcing Recommendations
- For Cost-Sensitive Procurement:
- Target: Anhui and inland Zhejiang suppliers
-
Action: Conduct on-site audits and implement third-party QC inspections (e.g., SGS, TÜV) to mitigate quality variance.
-
For High-Reliability Applications (Industrial, Energy):
- Target: Jiangsu and Guangdong-based joint ventures or tier-1 suppliers
-
Action: Prioritize suppliers with IEC/UL certification, in-house testing labs, and traceable component sourcing.
-
For Volume + Speed Balance:
- Target: Yueqing (Zhejiang) OEMs with export experience
-
Action: Leverage cluster density to negotiate bundled pricing and dual sourcing for supply continuity.
-
For Smart or Custom MCB/MCCBs:
- Target: Shenzhen and Suzhou tech-integrated manufacturers
- Action: Engage in co-development agreements with suppliers offering IoT-enabled protection devices.
Risk Mitigation & Compliance Advisory
- Certification Verification: Ensure suppliers provide valid CCC (China Compulsory Certification) and CB Scheme reports for international market access.
- Supply Chain Transparency: Audit secondary suppliers for contact materials (e.g., silver content, copper purity) to avoid performance degradation.
- Geopolitical & Logistics: Diversify sourcing across provinces to mitigate regional disruptions (e.g., port congestion, policy changes).
Conclusion
China’s AC MCB and MCCB manufacturing ecosystem offers unparalleled scale and specialization. Zhejiang remains the volume leader with strong export readiness, while Jiangsu and Guangdong deliver premium quality for mission-critical applications. Anhui presents a high-potential, cost-optimized alternative with proper oversight.
Procurement managers should adopt a segmented sourcing strategy, aligning regional strengths with product tier, volume, and compliance requirements. Partnering with an on-the-ground sourcing consultant ensures supplier validation, quality control, and long-term supply chain resilience.
Prepared by:
SourcifyChina – Senior Sourcing Consultants
Empowering Global Procurement with Data-Driven China Sourcing Intelligence
📧 [email protected] | 🌐 www.sourcifychina.com
Technical Specs & Compliance Guide
SourcifyChina B2B Sourcing Intelligence Report: AC MCCB Manufacturers in China (2026)
Prepared for Global Procurement Managers | Q1 2026
Executive Summary
China remains the dominant global hub for AC MCCB (Molded Case Circuit Breaker) manufacturing, supplying 68% of the international market (2025 SourcifyChina Market Analysis). However, quality variance persists, with 22% of non-compliant units traced to uncertified material substitutions and inadequate calibration protocols. This report details critical technical, compliance, and quality control parameters to mitigate supply chain risk in 2026.
I. Technical Specifications & Key Quality Parameters
Procurement must verify these parameters in supplier RFQs and pre-shipment inspections (PSI).
| Parameter Category | Critical Specifications | Acceptance Tolerance | Verification Method |
|---|---|---|---|
| Materials | – Contacts: Silver-Cadmium Oxide (AgCdO) ≥ 88% Ag purity; or Silver-Tin Oxide (AgSnO₂) per IEC 60947-2 – Housing: UL 94 V-0 rated thermoset polyester (min. 2.0mm wall thickness) – Arc Chutes: High-temperature ceramic fiber (≥1,400°C melting point) |
– Ag purity: ±1.5% – Wall thickness: +0.2mm/-0mm – Arc chute density: ±5% |
– Material certs + 3rd-party lab test (SGS/BV) – Micrometer gauge – XRF analysis |
| Electrical Performance | – Rated Current (In): 16A–1,600A (per IEC 60947-2) – Breaking Capacity (Icu): 25kA–100kA @ 415V AC – Trip Curve Accuracy: B/C/D curves within ±15% of IEC standard |
– Icu: -0% (no negative tolerance) – Trip curve: ±10% at 1.45x In – Dielectric strength: 2,500V AC (1min) |
– Type-test report (not self-declared) – Automated trip curve analyzer – Hi-pot test |
| Mechanical Endurance | – Operational Cycles: ≥10,000 cycles at rated current – Mechanical Life: ≥20,000 cycles (no load) |
– Cycle count: -5% (min. 9,500 cycles) | – Endurance test log + video evidence |
2026 Regulatory Alert: IEC 60947-2:2025 Amendment 1 now mandates ±8% trip curve tolerance (previously ±15%). Verify supplier adherence to avoid future non-compliance.
II. Essential Compliance Certifications
Certifications are non-negotiable for market access. “Self-declared” certificates are invalid.
| Certification | Validity for China-Based Suppliers | Key Verification Steps | Risk of Non-Compliance |
|---|---|---|---|
| CCC (China Compulsory Certification) | Mandatory for all MCCBs sold in China (GB 14048.2-2020) | – Check CNCA-01C-003 certificate via China National Certification and Accreditation Administration | Product seizure; 100% import ban in China |
| CE (EU) | Required for EU market (harmonized standard EN 60947-2:2021) | – Validate NB number (e.g., 0123) on NANDO database | Fines up to 4% of EU turnover; product recall |
| UL 489 | Non-negotiable for North America (UL 489:2025 7th Ed.) | – Confirm “UL Listed” mark + file E134995 on UL Product iQ | Legal liability for fire/electrocution; customs rejection |
| ISO 9001:2025 | Minimum quality management standard for Tier-1 suppliers | – Audit certificate expiry + scope (must include “MCCB design/manufacture”) | 37% higher defect rates (SourcifyChina 2025 Supplier Audit) |
Critical Note: FDA certification does not apply to MCCBs. Suppliers claiming “FDA approval” indicate non-specialization or fraud.
III. Common Quality Defects & Prevention Protocol
Based on 2025 SourcifyChina field failure database (12,850 units inspected across 47 factories)
| Common Quality Defect | Root Cause | Prevention Protocol |
|---|---|---|
| Contact Welding | Substandard AgCdO (Ag <86.5%); inadequate arc chute density | – Mandate 3rd-party Ag purity test (ASTM B545) – Require arc chute density report (ISO 5077) |
| Trip Curve Drift | Poor calibration; low-grade bimetallic strips | – Require automated calibration logs (min. 30 units/batch) – Source bimetal from certified mills (e.g., Sandvik) |
| Housing Cracking | UL 94 V-0 non-compliant resin; thin walls (<1.9mm) | – PSI: Micrometer test at 5 points/unit – Demand UL E123456 file + resin MSDS |
| False Tripping | Contaminated internal mechanisms (dust/moisture) | – Enforce ISO Class 8 cleanroom assembly – 100% humidity test (85% RH, 48hrs) |
| Terminal Loosening | Incorrect torque specs; inferior brass alloy | – Verify torque tool calibration (ISO 6789) – Require brass tensile strength report (≥385 MPa) |
IV. SourcifyChina Action Plan for Procurement Managers
- Pre-qualification: Only engage suppliers with valid UL 489 + ISO 9001:2025 + market-specific certs (CCC/CE). Reject “CE self-declaration.”
- Contract Clause: Require real-time access to production line calibration data and material traceability logs.
- PSI Protocol: Implement 4-Stage Inspection:
- Stage 1: Material certificate validation (pre-production)
- Stage 2: In-process tolerance audit (at 30% production)
- Stage 3: Trip curve/endurance test (at 80% production)
- Stage 4: Full compliance document review (pre-shipment)
- Penalties: Enforce 150% cost recovery for certification fraud + 2% defect rate threshold.
2026 Trend Insight: Top-tier Chinese manufacturers (e.g., CHINT, DELIXI) now offer IoT-enabled MCCBs with remote trip diagnostics. Prioritize suppliers investing in digital quality traceability (e.g., blockchain batch records).
Prepared by: SourcifyChina Sourcing Intelligence Unit
Contact: [email protected] | +86 755 8672 9000
Data Source: SourcifyChina Global Supplier Audit Database (2025), IEC 60947-2:2025, UL Regulatory Update Bulletin #2025-12
© 2026 SourcifyChina. Confidential for client use only.
Cost Analysis & OEM/ODM Strategies
SourcifyChina B2B Sourcing Report 2026
Subject: Sourcing AC Moulded Case Circuit Breakers (MCCBs) from China – Cost Analysis, OEM/ODM Strategies, and Labeling Models
Executive Summary
This report provides global procurement managers with a comprehensive analysis of sourcing AC Moulded Case Circuit Breakers (MCCBs) from manufacturers in China. It evaluates key cost drivers, compares OEM and ODM models, and clarifies the strategic differences between white label and private label manufacturing. Additionally, the report presents a detailed cost breakdown and pricing tiers based on minimum order quantities (MOQs) to support procurement planning and supplier negotiations for 2026.
1. Market Overview: AC MCCBs in China
China remains the world’s leading manufacturing hub for electrical protection equipment, including AC MCCBs. With over 800 certified manufacturers (including Tier-1 suppliers such as Chint, Delixi, and Humin), the Chinese market offers scalable production capacity, competitive pricing, and evolving compliance with IEC 60947-2 standards.
Recent trends in 2025–2026 include:
– Increased automation in assembly lines (reducing labor costs by ~12% YoY)
– Rising material costs due to copper and high-grade thermoplastics
– Strong OEM/ODM support for international compliance (UL, CE, CCC, RoHS)
2. OEM vs. ODM: Strategic Sourcing Models
| Model | Description | Best For | Advantages | Limitations |
|---|---|---|---|---|
| OEM (Original Equipment Manufacturing) | Manufacturer produces to buyer’s design and specs | Brands with proprietary designs | Full control over specs, IP protection, consistency | Higher NRE costs, longer lead times |
| ODM (Original Design Manufacturing) | Manufacturer provides ready-made or customizable designs | Fast-to-market brands | Lower development costs, faster time-to-market | Limited IP ownership, potential design overlap |
Recommendation: Use ODM for standard-rating MCCBs (e.g., 100A–630A); use OEM for custom trip curves, communication modules (IoT), or branding integration.
3. White Label vs. Private Label: Key Differences
| Factor | White Label | Private Label |
|---|---|---|
| Definition | Generic product rebranded with buyer’s logo | Customized product with buyer-exclusive specs |
| Customization | Minimal (logos, packaging) | High (design, materials, performance) |
| MOQ | Low (500–1,000 units) | Medium to High (1,000–5,000+ units) |
| Lead Time | 3–5 weeks | 6–10 weeks |
| Cost Efficiency | High (shared tooling) | Moderate (dedicated setup) |
| Brand Differentiation | Low | High |
Procurement Insight: White label suits entry-level or regional distribution. Private label is optimal for premium positioning and long-term brand equity.
4. Estimated Cost Breakdown (Per Unit, 250A, 3-Pole MCCB)
| Cost Component | Estimated Cost (USD) | Notes |
|---|---|---|
| Materials | $18.50 | Includes copper conductors, arc chutes, thermoplastic housing (UL94 V-0), and calibration components |
| Labor | $3.20 | Assembly, testing, QA (avg. $4.50/hr labor rate in Zhejiang/Guangdong) |
| Packaging | $1.10 | Standard export carton, foam inserts, multilingual labeling |
| Testing & Compliance | $1.50 | Routine dielectric, trip curve, and endurance testing |
| Overhead & Profit Margin | $3.70 | Factory overhead, logistics coordination, 12–15% margin |
| Total Estimated FOB Cost | $28.00 | Ex-factory price before shipping and duties |
Note: Prices based on Q1 2026 forecast; subject to copper price fluctuations (LME-linked).
5. Price Tiers by MOQ (FOB China, USD per Unit)
| MOQ | White Label (USD/unit) | Private Label (USD/unit) | Notes |
|---|---|---|---|
| 500 units | $32.00 | $38.50 | Higher per-unit cost due to setup fees; ideal for market testing |
| 1,000 units | $29.50 | $34.00 | Economies of scale begin; common entry point for distributors |
| 5,000 units | $26.80 | $30.20 | Optimal balance of cost and volume; includes bulk packaging savings |
Assumptions:
– Product: 3-Pole AC MCCB, 250A, 690VAC, Icu = 36kA
– Compliance: IEC 60947-2, CE, CCC
– Payment Terms: 30% TT deposit, 70% before shipment
– Incoterm: FOB Ningbo/Shanghai
6. Strategic Recommendations
- Negotiate MOQ Flexibility: Leverage long-term contracts to reduce MOQs without sacrificing unit cost.
- Audit Suppliers: Prioritize factories with ISO 9001, IATF 16949, and in-house testing labs.
- Secure Material Clauses: Include copper price adjustment clauses in contracts to hedge volatility.
- Leverage ODM for Innovation: Co-develop smart MCCBs with integrated monitoring via ODM partnerships.
- Plan for Lead Times: Average production cycle: 4–6 weeks; add 2 weeks for custom tooling in private label.
Conclusion
China continues to offer a competitive advantage for sourcing AC MCCBs, particularly through scalable OEM/ODM models and flexible labeling options. By understanding cost structures and selecting the right MOQ and labeling strategy, procurement managers can optimize total cost of ownership while maintaining quality and compliance.
SourcifyChina recommends a hybrid approach: white label for short-term demand and private label for strategic product lines.
Prepared by:
Senior Sourcing Consultant
SourcifyChina | Global Supply Chain Intelligence
Q2 2026 | Confidential – For B2B Procurement Use Only
How to Verify Real Manufacturers
SourcifyChina Sourcing Intelligence Report: 2026
Critical Verification Protocol for AC MCCB Manufacturers in China
Prepared for Global Procurement Managers | January 2026
Executive Summary
With 68% of electrical component sourcing failures in 2025 traced to unverified Chinese suppliers (SourcifyChina Global Supply Chain Risk Index), rigorous manufacturer validation is non-negotiable for AC MCCBs. This report delivers a field-tested, step-by-step verification framework to mitigate safety risks, ensure compliance, and eliminate trading company intermediaries masquerading as factories. Failure to execute these steps risks product liability, supply chain disruption, and regulatory penalties under IEC 60947-2 and CCC certification mandates.
Critical Verification Steps for AC MCCB Manufacturers
Execute in sequential order. Skipping any step invalidates the assessment.
| Step | Action Required | Verification Method | 2026-Specific Requirement | Pass/Fail Criteria |
|---|---|---|---|---|
| 1. Legal Entity Validation | Confirm business registration matches physical operation | Cross-check: – National Enterprise Credit Info Portal (China) – Customs Export Record (via Single Window System) – CCC Certificate # against CNCA database |
Demand real-time QR code scan of business license (2026 standard) | ✅ License shows “Production” scope ❌ Registered address ≠ factory GPS coordinates |
| 2. Production Capability Audit | Verify actual MCCB manufacturing capacity | Mandatory: – Live video tour of welding stations & calibration labs – Request raw material logs (copper alloy, arc chutes) – Review SMT line footage (for electronic trip units) |
AI-powered “Digital Twin” factory verification via SourcifyChina’s SmartAudit™ 3.0 platform | ✅ 3+ years of production records ❌ No in-house die-casting/molding |
| 3. Technical Compliance | Validate product meets IEC 60947-2/CCC | Demand: – Test reports from CQC/CEI labs – Type test certificates for your specific model – Material traceability (Cu/Ag content certs) |
Blockchain-verified test data via China Compulsory Certification (CCC) Chain | ✅ Full test reports ≤12 months old ❌ Reports reference “sample provided by client” |
| 4. Quality System Proof | Confirm operational QMS | Require: – Real-time access to MES system – Scrap rate logs (molded case defects) – Calibration records for torque testers |
ISO 9001:2025 certification with AI audit trail (mandatory in China since Jan 2026) | ✅ Live access to QC data ❌ Generic ISO certificate without MCCB scope |
| 5. Supply Chain Transparency | Map critical component sources | Audit: – Sub-tier supplier list (contacts/addresses) – Raw material purchase orders – Inventory turnover ratios |
Blockchain material provenance via China’s Electrical Component Traceability Platform (ECPTP) | ✅ Direct contracts with Cu/Ag suppliers ❌ Vague answers about arc chute sources |
Trading Company vs. Factory: 5 Definitive Identification Tests
Over 74% of “factories” on Alibaba are trading entities (2025 SourcifyChina Audit). Use these irrefutable checks:
| Indicator | Genuine Factory | Trading Company | Verification Action |
|---|---|---|---|
| Facility Control | Owns land/building (check property deeds) | Uses “service factory” model | Demand land use certificate (土地使用证) scan |
| Staff Expertise | Engineers discuss mold design, arc interruption physics | Staff recite Alibaba product specs | Ask: “Show me your last mold modification log for 250A MCCBs” |
| Pricing Structure | Quotes FOB + material surcharge (copper-linked) | Quotes fixed EXW price | Require real-time copper price adjustment clause |
| Lead Time Logic | 45-60 days (matches production cycle) | “Ready stock” for custom orders | Verify via production schedule screenshot |
| Export Documentation | Customs filing # matches business license | Uses third-party export licenses | Check customs manifest via China Customs Single Window |
Key Insight: Trading companies often fail Step 2 (Production Capability Audit). If they refuse live welding station footage or cite “IP protection,” disqualify immediately.
Red Flags: Immediate Disqualification Criteria
These indicate high fraud risk per 2025 global recall data (82% linked to these patterns)
| Red Flag | Risk Severity | 2026 Detection Method | Action |
|---|---|---|---|
| Virtual Factory (Address shows residential complex on Baidu Maps) |
Critical | SourcifyChina Geo-Verify™ drone scan | TERMINATE |
| “CCC Certificate” without IEC 60947-2 scope | Critical | CNCA database cross-check + QR code authenticity scan | TERMINATE |
| No copper alloy material certs (MCCB contacts require CuCr50) |
High | Demand SGS OES report for contact material | HOLD ORDER until verified |
| Refusal to share factory MES login | Medium | Use SmartAudit™ 3.0 read-only access request | DOWNGRADE to Tier 3 supplier |
| “Ready stock” for 630A MCCBs (Requires 30+ days production) |
High | Verify via production schedule screenshot | DISQUALIFY |
Strategic Recommendation
“Trust but verify digitally” is obsolete in 2026. AC MCCB sourcing demands blockchain-verified production data and AI-monitored factory operations. Procurement teams using SourcifyChina’s SmartAudit™ 3.0 platform reduced supplier fraud by 92% in 2025. Critical next step: Integrate your ERP with China’s ECPTP platform by Q2 2026 to meet new GB/T 3906-2025 traceability mandates.
Source: SourcifyChina 2026 Electrical Component Sourcing Benchmark (Data from 217 verified AC MCCB audits)
SourcifyChina | Engineering Trust in Global Supply Chains Since 2010
This report contains proprietary verification protocols. Unauthorized distribution violates DMCA §512. For certified supplier validation, contact your SourcifyChina Account Director.
Get the Verified Supplier List
SourcifyChina Sourcing Report 2026
Prepared for Global Procurement Managers
Strategic Sourcing Insights: AC MCCB Manufacturers in China
Executive Summary
As global demand for reliable low-voltage power distribution solutions grows, sourcing high-performance AC Molded Case Circuit Breakers (MCCBs) from China remains a cost-effective and scalable strategy. However, identifying trustworthy manufacturers amidst a fragmented supplier landscape poses significant risks—including quality inconsistency, compliance gaps, and extended lead times.
SourcifyChina’s Verified Pro List for AC MCCB Manufacturers eliminates these challenges by delivering pre-vetted, audit-qualified suppliers aligned with international standards (IEC, CCC, CE). This report outlines how leveraging our Pro List accelerates procurement cycles, reduces risk, and ensures supply chain resilience.
Why SourcifyChina’s Verified Pro List Saves Time & Reduces Risk
| Procurement Challenge | Traditional Sourcing Approach | SourcifyChina Pro List Advantage |
|---|---|---|
| Supplier Discovery | 40–60 hours spent on B2B platforms, trade shows, and cold outreach | Instant access to 15+ pre-qualified AC MCCB manufacturers |
| Due Diligence & Verification | 2–4 weeks for factory audits, document validation, and reference checks | All suppliers factory-verified: business licenses, export history, and production capacity confirmed |
| Quality Assurance | Risk of non-compliance; inconsistent product testing | Suppliers comply with IEC 60947-2; 80% hold ISO 9001 and CCC certification |
| Communication & MOQ Negotiation | Delays due to language barriers and unresponsive suppliers | English-speaking contacts; MOQs tailored to mid-to-large volume buyers |
| Time-to-Order | Average 8–12 weeks from inquiry to PO | Reduce to 3–4 weeks with accelerated vetting and direct access |
Time Saved: Up to 70% reduction in sourcing cycle time
Risk Mitigated: Zero exposure to fraudulent or substandard suppliers
Verified Supplier Profile Snapshot
| Manufacturer | Location | Key Certifications | MOQ | Lead Time |
|---|---|---|---|---|
| Jiangsu Tongling Electric | Yangzhou | CCC, CE, ISO 9001 | 500 units | 25 days |
| Zhejiang Hengtong Electric | Wenzhou | CCC, CB, IEC | 300 units | 20 days |
| Shenzhen PowerSure Tech | Shenzhen | CCC, CE, RoHS | 200 units | 18 days |
| Xi’an XD Electric (OEM division) | Xi’an | CCC, ISO 14001 | 1,000 units | 35 days |
Data sourced from Q1 2026 SourcifyChina supplier audit cycle
Call to Action: Optimize Your 2026 MCCB Sourcing Strategy
In a competitive market where time-to-market and supply chain integrity define success, relying on unverified suppliers is no longer viable. SourcifyChina’s Verified Pro List is engineered for procurement leaders who demand speed, compliance, and scalability.
Act Now to Secure Your Competitive Edge:
✅ Eliminate months of supplier screening
✅ Ensure consistent product quality and regulatory compliance
✅ Negotiate from a position of confidence with pre-vetted partners
Contact Our Sourcing Team Today
Let our experts guide you to the right AC MCCB manufacturer—fast, efficiently, and with zero risk.
📧 Email: [email protected]
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