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Siemens 3RV2421-1HA10 S0 Transformer Protection Circuit Breaker

Siemens 3RV2421-1HA10 Size S0 circuit breaker for transformer protection.

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ManufacturerSiemens

Part number3RV2421-1HA10

Size S0

For transformer protection Yes

A-release 5.5...8 A

Short-circuit release 163 A

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Veteran-owned

CAGE: 9NK75

Transformer protection Adjustable overload setting Fixed short-circuit trip Screw terminal connection Standard switching capacity Size S0

Product description

The Siemens 3RV2421-1HA10 is a Size S0 circuit breaker specifically engineered for transformer protection. It features an adjustable A-release range from 5.5 to 8 Amps and a fixed short-circuit release of 163 Amps. This breaker utilizes screw terminals and offers standard switching capacity.

This component is essential for protecting transformers in industrial settings from overloads and short circuits. It finds application in control panels, power distribution systems, and various types of industrial machinery that utilize transformers.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RV2421-1HA10. We provide reliable and cost-effective solutions for your industrial automation needs, ensuring you get the parts you need when you need them.

Technical specifications

Size	S0
For transformer protection	Yes
A-release	5.5...8 A
Short-circuit release	163 A
Terminals	Screw terminal
Switching capacity	Standard

Common applications

Transformer protection

Industrial automation

Control systems

Power distribution

Machine building

Manufacturing

Compatible systems

Siemens Sirius 3RV2 Siemens 3RV2 accessories

Also known as

Siemens 3RV24211HA10 Siemens S0 transformer breaker Siemens 5.5-8A breaker

Replaces / compatible with

Compatible with Siemens Sirius 3RV2 series accessories.

Technical note

Expert tip

The 163A short-circuit release is a fixed setting, designed to protect against high-magnitude fault currents typical in transformer circuits.

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Frequently asked questions

What is the purpose of the adjustable release on the Siemens 3RV2421-1HA10?

The adjustable A-release on the Siemens 3RV2421-1HA10 (5.5-8A) allows users to precisely set the thermal overload protection for the transformer. This ensures that the breaker trips only when the transformer is truly overloaded, preventing nuisance tripping while still providing essential protection.