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Siemens 3RV2021-4CA20 S0 Motor Protection Breaker Spring-Type

Siemens 3RV2021-4CA20 S0 Motor Protection Circuit Breaker

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ManufacturerSiemens

Part number3RV2021-4CA20

Size S0

Motor Protection Yes

Class 10

A-Release 16-22 A

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12-month warranty

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Veteran-owned

CAGE: 9NK75

Motor protection Adjustable trip current Standard switching capacity Spring-type terminals CLASS 10 rating

Product description

The Siemens 3RV2021-4CA20 is a size S0 motor starter protector designed for efficient motor protection. It offers a CLASS 10 rating, an adjustable A-release setting between 16A and 22A, and a fixed N-release of 286A. This particular model is equipped with spring-type terminals, providing a vibration-resistant and reliable connection without the need for special tools.

This circuit breaker is ideal for applications where quick and secure connections are paramount, such as in control cabinets with frequent wiring or in environments prone to vibration. It ensures reliable motor protection in manufacturing, material handling, and automation systems.

Stanlo Automation, a proud veteran-owned business, provides access to essential surplus industrial automation parts like the Siemens 3RV2021-4CA20. We focus on delivering quality components with competitive pricing and rapid fulfillment to keep your projects on track. Choose Stanlo for dependable automation solutions.

Technical specifications

Size	S0
Motor Protection	Yes
Class	10
A-Release	16-22 A
N-Release	286 A
Terminals	Spring-type
Switching Capacity	Standard

Common applications

Motor control panels

Automation systems

Industrial machinery

Control cabinets

High-vibration environments

Compatible systems

PLC controlled systems Industrial automation Motor starter circuits Control panel wiring

Also known as

Siemens 3RV2021-4CA20 3RV20214CA20 Siemens S0 spring terminal breaker

Replaces / compatible with

Compatible with Siemens 3RV2 series motor protection applications and systems.

Technical note

Expert tip

Spring-type terminals on the 3RV2021-4CA20 ensure consistent contact pressure, making them suitable for applications where wire connections might loosen over time due to vibration.

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Frequently asked questions

What type of terminals does the Siemens 3RV2021-4CA20 use?

The Siemens 3RV2021-4CA20 utilizes spring-type terminals. These offer a secure, vibration-resistant connection and can simplify wiring, especially in demanding industrial environments.