3RV2921-1M

The 3RV2921-1M is a dedicated signal switch for Siemens SIRIUS 3RV2 circuit breakers. It provides one set of NO+NC contacts for tripping signals and one set for short-circuit warnings. It features screw terminal connections, is suitable for S00, S0, S2, and S3 size circuit breakers, has an IP20 protection rating, and can report the circuit breaker's operating status.

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Product Positioning

The 3RV2921-1M is a dedicated signal switch for Siemens SIRIUS 3RV2 series circuit breakers. It can report tripping signals and short-circuit warnings, making it easier for the supervisory control system to monitor the circuit breaker status.

Core Product Advantages and Features

Dual independent contacts

Each trip signal and short circuit warning is configured with one set of NO+1 NC contacts, and the signals do not interfere with each other.

Wide range of applications

It can be used with 3RV2 circuit breakers of various sizes such as S00, S0, S2, and S3.

Spiral terminal connection

It can connect to wires ranging from 0.5 to 2.5 square millimeters and is securely installed.

Protection rating IP20

The front is designed to prevent finger contact, improving operational safety.

project	Specification
Product Type	Signal switch (trip warning)
Contact configuration	1 NO + 1 NC (One set each of trip signal and short circuit warning)
Applicable size	S00, S0, S2, S3
Maximum current (AC-12)	10 A (24V/230V/400V/690V)
Connection method	Spiral terminals (0.5-2.5 mm²)
Protection level	IP20 (Front-facing finger-proof)
Operating temperature	-20°C ~ +60°C
Storage temperature	-50°C ~ +80°C
External dimensions	18 x 90 x 68 mm
net weight	0.102 kg

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