XF9J Alarm Auxiliary Contact Datasheet & Manual

XF9J Alarm Auxiliary Contact

The XF9J Alarm Auxiliary Contact is a specialized signaling accessory for CHINT NB1, NBH8, NB1L, and NBH8LE series miniature circuit breakers and RCBOs. Designed to indicate the trip status after automatic release due to overload or short-circuit faults, it ensures accurate fault feedback in power protection systems. With a rated insulation voltage of 500V, mechanical life of 10,000 operations, and IP20 protection, the XF9J guarantees reliable monitoring performance in residential, commercial, and industrial installations.

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FAQs

What is the main function of the XF9J Alarm Auxiliary Contact?

It signals the trip status of an MCB or RCBO after an automatic release caused by an overload or short-circuit fault, ensuring operators are immediately notified of circuit faults.

How is the XF9J different from a standard auxiliary contact?

While standard auxiliary contacts indicate breaker ON/OFF status, the XF9J Alarm Auxiliary Contact specifically provides fault or trip indication, making it a key diagnostic component.

How is the XF9J installed?

It’s installed on the left side of the compatible MCB or RCBO using a dedicated pin connection, requiring no additional wiring modifications.

What environmental conditions can it operate in?

The XF9J operates in temperatures between −5°C and +40°C, with storage tolerance up to +70°C, and maintains IP20 protection against accidental contact.

What is its expected lifespan?

The XF9J offers a mechanical life of 10,000 operations and an electrical life of at least 4,000 operations, ensuring durable and reliable performance over years of service.

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XF9J Alarm Auxiliary Contact

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