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Siemens 3RV2021-4BA25: Size S0 Motor Protection Circuit Breaker w/Aux

Siemens 3RV2021-4BA25 Size S0 Motor Protection Circuit Breaker w/Aux

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ManufacturerSiemens

Part number3RV2021-4BA25

Size S0

Class 10

A-release 13-20 A

N-release 260 A

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Adjustable thermal overload protection Class 10 tripping Spring-type terminals Integrated auxiliary contacts (1 NO+1 NC) High short-circuit rating

Product description

The Siemens 3RV2021-4BA25 is a Size S0 motor protection circuit breaker featuring spring-type terminals and integrated transverse auxiliary switches (1 NO + 1 NC). It provides an adjustable thermal overload protection (A-release) range of 13 to 20 Amps and a fixed magnetic short-circuit release (N-release) of 260 Amps, adhering to Class 10 tripping standards.

This breaker is ideal for motor protection in industrial automation and control panels where fast wiring and auxiliary contacts for signaling or interlocking are required, especially in high-vibration environments.

Stanlo Automation, a veteran-owned distributor of quality surplus industrial parts, offers the Siemens 3RV2021-4BA25, ensuring reliable components for your critical applications.

Technical specifications

Size	S0
Class	10
A-release	13-20 A
N-release	260 A
Aux Contacts	1 NO+1 NC
Terminals	Spring

Common applications

Motor protection

Industrial automation

Control panel signaling

Machine interlocking

High-vibration environments

Compatible systems

Compatible with Siemens SIRIUS motor starter systems and associated accessories.

Also known as

Siemens 3RV2021-4BA25 breaker SIRIUS 3RV2 motor protector with aux

Replaces / compatible with

This Siemens 3RV2021-4BA25 combines spring terminals and auxiliary contacts for enhanced functionality and ease of installation in motor control circuits.

Technical note

Expert tip

The combination of spring terminals and integrated auxiliary contacts makes this breaker a highly efficient and versatile solution for motor feeder applications.

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Frequently asked questions

Can the Siemens 3RV2021-4BA25 be used in environments with high vibration?

Yes, the spring-type terminals on the 3RV2021-4BA25 provide excellent resistance to vibration, ensuring a secure and reliable electrical connection in demanding industrial settings.