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Help CenterNA1 Series Molded Case Circuit Breaker 3P 250A With Thermal-Magnetic Trip Unit
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As a certified manufacturer with ISO9001 quality management, Jinhua Dika Electrical Equipment Co., Ltd. delivers the NA1 Series Molded Case Circuit Breaker – engineered for precision protection in demanding industrial environments. With over a decade of expertise serving global markets including North America and Southeast Asia, our 250A thermal-magnetic breaker combines robust safety with operational efficiency. This solution directly addresses voltage fluctuation challenges while reducing downtime risks across commercial power systems.
Core Technical Advantages:
- Dual-Protection Mechanism: Thermal element guards against overloads while magnetic component instantly interrupts short circuits
- Durability-Enhanced Design: Impact-resistant molded case withstands harsh industrial conditions with IP40 protection rating
- Simplified Maintenance: Visible trip indicators and test buttons enable quick diagnostics without disassembly
Performance Specifications:
| Parameter | Value |
|---|---|
| Rated Insulation Voltage | 800V AC |
| Operational Temperature | -25°C to +70°C |
| Mechanical Life | 20,000 cycles |
| Terminal Connection | Dual compression type |
Installation flexibility is achieved through DIN rail or panel mounting options, compatible with standard 35mm rails. The adjustable thermal settings allow ±20% calibration for load-specific protection schemes. For specialized applications, auxiliary contacts and shunt trips are available upon request.
Customer Benefits:
- Reduces equipment damage costs by 30-50% through accurate fault detection
- Energy savings via minimized arc duration during interruption
- Scalable for multi-tier protection systems in facility expansions
Backed by our US$1.5M annual export volume to 15+ global regions, this breaker undergoes rigorous quality control at our Zhejiang facility. With ports in Shanghai and Tianjin ensuring prompt shipments, we maintain 98% on-time delivery for bulk orders. Choose Jinhua Dika for circuit protection that balances advanced engineering with supply chain reliability – request your technical datasheet today to optimize your power management strategy.
Frequently Asked Questions:
-
Q: What maintenance does this breaker require?
A: Only periodic operational checks; no lubrication needed due to sealed mechanism -
Q: Is customization available for different voltage ratings?
A: Yes, voltage adjustments can be customized upon request -
Q: Can it integrate with energy monitoring systems?
A: Optional communication modules enable SCADA integration -
Q: What is the lead time for 100+ units?
A: Typically 15-25 days via Shanghai/Ningbo ports -
Q: Are spare trip units replaceable?
A: Yes, modular design allows component-level replacement -
Q: Compatibility with older switchgear?
A: Dimensions comply with IEC standards for retrofitting
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