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Siemens 3RV1902-1AF0 Undervoltage Release - 110-120V AC

Siemens 3RV1902-1AF0 Undervoltage Release for 110-120V AC.

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ManufacturerSiemens

Part number3RV1902-1AF0

Voltage 110 V AC / 50 Hz, 120 V AC / 60 Hz

For Circuit Breaker Size S00...S3

Type Undervoltage Release

Series SIRIUS 3RV1

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Undervoltage protection Trips circuit breaker on voltage drop For 110-120V AC systems Designed for Siemens S00-S3 breakers Safety function

Product description

The Siemens 3RV1902-1AF0 is an undervoltage release designed for Siemens circuit breakers of sizes S00 through S3. It operates on 110V AC at 50Hz or 120V AC at 60Hz, providing essential safety functionality by tripping the circuit breaker when the supply voltage drops to a critical level.

This release is crucial for applications where unintended equipment startup after a power interruption could pose a hazard. It is commonly used in industrial machinery, pump controls, and conveyor systems to ensure safe operation and prevent damage.

Stanlo Automation, a veteran-owned distributor of surplus industrial parts, offers the Siemens 3RV1902-1AF0. Secure reliable components from us to maintain the safety and integrity of your electrical systems.

Technical specifications

Voltage	110 V AC / 50 Hz, 120 V AC / 60 Hz
For Circuit Breaker Size	S00...S3
Type	Undervoltage Release
Series	SIRIUS 3RV1

Common applications

Industrial machinery

Motor control

Pump systems

Conveyor belts

Safety circuits

Power distribution

Compatible systems

Siemens 3RV1 circuit breakers size S00, S0, S2, S3

Also known as

Siemens 3RV19021AF0 3RV1902-1AF0 release Siemens voltage trip

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RV2 series, specifically model 3RV2902-1AF0.

Technical note

Expert tip

The 3RV1902-1AF0 undervoltage release must be manually reset after the voltage returns to nominal levels and the cause of the undervoltage condition has been resolved.

What happens next?

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Frequently asked questions

How does the Siemens 3RV1902-1AF0 undervoltage release enhance safety?

The Siemens 3RV1902-1AF0 undervoltage release automatically trips the associated circuit breaker when the supply voltage falls below a safe operating level (110-120V AC). This prevents unexpected machine restart after a power outage, protecting personnel and equipment.