Product details
1. Professional Application: BSJ series latching relays are specially designed for oil-immersed transformers. They match the protection circuits of gas relays and pressure relief valves, realizing alarm, trip and interlock locking functions. Widely applicable for power stations, substations and other power system scenarios.
2. International Authorized Certification: Fully certified by CE, UL508 and UL1604 international standards. Compliant with global engineering specifications, suitable for domestic and overseas projects.
3. Premium Durable Housing: Adopts IP55-grade aluminum alloy shell, featuring dustproof, waterproof and anti-corrosion performance, with sturdy structure for long-term field operation.
4. Ultra-Wide Temperature Adaptability: Stable working temperature ranges from -40℃ to 80℃, capable of operating reliably under extreme high and low temperature and harsh working conditions.
5. High Mechanical Durability: Supports 100,000 mechanical cycle tests with high stability and low failure rate, greatly extending service life.
6. Convenient Manual Reset: Equipped with manual reset function for simple operation and fast response, ensuring efficient non-electrical protection for transformers.
7. Cost-Effective Customized Service: Factory direct supply with competitive wholesale price. OEM customization is available, providing high-quality and cost-effective supporting accessories for transformer protection systems.




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Step 1
Payment and order readiness
Minimum order: 1 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
5 days
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Step 3
Packaging and dispatch
Air + Express via FLY Logistics · Approx. shipping fee: $ 20.00 for 1 piece · Transit time: Est. 8-9 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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