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Siemens 3RV2421-4DA20 Size S0 Transformer Protection Breaker

Siemens 3RV2421-4DA20 Size S0 Circuit Breaker for transformer protection.

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ManufacturerSiemens

Part number3RV2421-4DA20

Size S0

Application Transformer Protection

A-Release 18-25 A

N-Release 400 A

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Size S0 Transformer protection Adjustable A-release (18-25A) 400A N-release Spring-type terminals Standard switching capacity

Product description

The Siemens 3RV2421-4DA20 is a Size S0 circuit breaker specifically designed for transformer protection. It features an adjustable A-release (adjustable trip current) from 18A to 25A and a non-release (N-release) setting of 400A. This breaker utilizes spring-type terminals for secure and efficient connections and offers standard switching capacity, ensuring reliable performance.

This circuit breaker is suitable for protecting larger transformers and associated control circuits in industrial applications such as motor control centers, power distribution, and automated manufacturing systems. Its adjustable settings provide tailored overload protection for demanding loads.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation parts, offers the Siemens 3RV2421-4DA20. We provide high-quality, competitively priced components to help you minimize downtime and maintain your operational efficiency.

Technical specifications

Size	S0
Application	Transformer Protection
A-Release	18-25 A
N-Release	400 A
Terminal Type	Spring-type
Switching Capacity	Standard
Manufacturer	Siemens

Common applications

Transformer protection

Industrial control

Motor control centers

Power distribution

Automation systems

Manufacturing equipment

Compatible systems

Siemens Sirius 3RV2 series

Also known as

Siemens 3RV2421-4DA20 3RV24214DA20 Siemens SITOR S0 transformer breaker

Replaces / compatible with

This part is a Siemens SITOR 3RV2 series circuit breaker, designed for transformer protection.

Technical note

Expert tip

The spring-type terminals on the 3RV2421-4DA20 provide a quick and reliable connection method, facilitating faster installation and maintenance in transformer protection applications.

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Frequently asked questions

What is the adjustable overload trip range for the Siemens 3RV2421-4DA20?

The Siemens 3RV2421-4DA20 circuit breaker has an adjustable overload trip (A-release) range of 18A to 25A. This allows for precise protection settings for larger transformers.