Automatic Transfer Switch For Generator Supplier
About automatic transfer switch for generator supplier
Where to Find Automatic Transfer Switch for Generator Suppliers?
China remains the central hub for automatic transfer switch (ATS) manufacturing, with key production clusters concentrated in Zhejiang and Fujian provinces. These regions host vertically integrated electrical component ecosystems, enabling rapid prototyping and scalable production. Wenzhou in Zhejiang alone accounts for over 40% of China’s low-voltage power switching device output, supported by mature supply chains for copper contacts, coil assemblies, and insulating housings.
The industrial clusters offer significant cost and logistical advantages, including localized access to raw materials such as high-grade thermoplastics and silver-alloy contacts, reducing material lead times by 25–35%. Facilities typically operate under ISO 9001 quality frameworks, with CE and RoHS compliance standard across export-oriented models. Average production cycles range from 15 to 30 days for standard ATS units, with bulk orders benefiting from economies of scale that reduce unit costs by 18–25% compared to non-specialized manufacturers.
How to Choose Automatic Transfer Switch for Generator Suppliers?
Selecting reliable suppliers requires rigorous evaluation across technical, operational, and transactional dimensions:
Technical Compliance
Confirm adherence to IEC 60947-6-1 standards for automatic transfer switching equipment. For critical infrastructure or commercial installations, verify inclusion of time-delay functions, phase monitoring, and surge protection integration. CE marking is essential for European market entry, while UL-listed equivalents are recommended for North American deployments.
Production Capability Verification
Assess core manufacturing competencies through the following indicators:
- Minimum factory area exceeding 3,000m² for stable volume output
- In-house testing labs capable of dielectric strength, contact resistance, and thermal stability validation
- Automated assembly lines with PLC-controlled burn-in testing
Cross-reference on-time delivery rates (target ≥98%) and reorder frequency to gauge reliability and product performance.
Customization & Transaction Security
Evaluate customization depth—reputable suppliers support modifications in pole configuration (2P/3P/4P), current rating (63A–1000A), enclosure material, labeling, and branding. Prioritize partners offering third-party inspection options and secure payment escrow. Sample validation is critical: conduct functional tests on transfer timing accuracy (typically 0.5–3 seconds) and source transition logic before scaling procurement.
What Are the Best Automatic Transfer Switch for Generator Suppliers?
| Company Name | Main Products | Online Revenue | On-Time Delivery | Reorder Rate | Avg. Response | Customization | Min. Order Quantity | Price Range (USD) |
|---|---|---|---|---|---|---|---|---|
| Fuan Vision Machinery & Electric Co., Ltd. | Generator Parts & Accessories, ATS, Fuel Pumps | US $340,000+ | 99% | 22% | ≤1h | Yes (color, size, logo, packaging) | Varies by model | $20–$200 |
| Wenzhou Beiyi Electric Co., Ltd. | ATS, MCBs, Surge Protectors, Voltage Regulators | US $20,000+ | 100% | 20% | ≤1h | No | 5 pieces | $11.20–$22 |
| Zhejiang Kaiyi Electric Co., Ltd. | ATS, Voltage Stabilizers, Circuit Breakers | US $30,000+ | 100% | 23% | ≤1h | No | 1–10 pieces | $9–$125 |
| Shanghai Yonghengsheng Industrial Co., Ltd. | High-capacity ATS (up to 1000A) | US $220,000+ | 98% | <15% | ≤4h | Yes (material, size, branding) | 1–10 sets | $150–$300 |
| Yueqing Renhe Electric Co., Ltd. | ATS, Relays, Panel Meters, Energy Meters | US $9,000+ | 100% | 25% | ≤7h | No | 1 piece | $30–$1,600 |
Performance Analysis
Fuan Vision and Shanghai Yonghengsheng specialize in higher-value, customizable ATS solutions suitable for industrial genset integration, with robust order fulfillment records. Wenzhou Beiyi and Zhejiang Kaiyi offer competitive pricing for mid-range applications (63A–250A), backed by 100% on-time delivery and strong reorder metrics. Yueqing Renhe stands out for single-unit availability and wide voltage/current configurations, ideal for pilot projects or replacement parts. Buyers seeking high-current ATS systems (400A+) should prioritize suppliers with documented testing protocols for contact durability and arc suppression.
FAQs
How to verify automatic transfer switch supplier reliability?
Validate certifications (CE, IEC) through official databases and request test reports for dielectric strength (≥2kV), insulation resistance, and mechanical endurance (minimum 10,000 cycles). Review transaction history, focusing on consistent delivery performance and post-sale support responsiveness.
What is the typical lead time for ATS units?
Standard models ship within 10–20 days after order confirmation. Custom-configured switches require 25–35 days, depending on complexity. Air freight adds 5–7 days for international delivery; sea freight ranges from 25–40 days based on destination.
Can suppliers provide ATS units with dual-source monitoring?
Yes, most suppliers offer intelligent ATS controllers with real-time utility and generator voltage sensing, automatic start/stop signaling, and fault diagnostics. Confirm compatibility with your generator control panel before procurement.
Is customization available for enclosure type and mounting?
Leading suppliers support DIN-rail, panel-mount, and enclosure-integrated designs. Material upgrades (e.g., polycarbonate vs. ABS) and IP-rated enclosures (IP55/IP65) are available upon request, particularly from manufacturers offering full OEM services.
What are common MOQs for automatic transfer switches?
MOQs vary from 1 piece (for high-end models) to 5–10 pieces for budget variants. Volume discounts typically apply at 50+ units. Sample orders are accepted by all listed suppliers, often credited toward future bulk purchases.









