Siemens 3RV1421-1BA10 S0 Circuit Breaker - Transformer Protection

Siemens 3RV1421-1BA10 S0 circuit breaker for transformer protection.

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ManufacturerSiemens

Part number3RV1421-1BA10

Size S0

Rated Current 1.4-2 A

Short-Circuit Release 42 A

Connection Type Screw Terminal

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Veteran-owned

CAGE: 9NK75

Transformer protection Adjustable thermal overload Fixed short-circuit release Screw terminals Standard switching capacity Phased-out product

Product description

The Siemens 3RV1421-1BA10 is a Size S0 circuit breaker tailored for transformer protection. It offers an adjustable thermal trip setting between 1.4 and 2 A, along with a fixed short-circuit release of 42 A. This breaker features screw terminals for secure connections and standard switching capacity. Note that this product is phased out, with the SIRIUS 3RV2 series serving as its successor.

This circuit breaker is ideal for protecting transformers in various industrial applications, including motor control systems, power distribution units, and automated machinery where robust protection is crucial.

As a veteran-owned surplus parts distributor, Stanlo Automation is your reliable source for the Siemens 3RV1421-1BA10. We offer quality-assured, hard-to-find components to keep your operations running smoothly.

Technical specifications

Size	S0
Rated Current	1.4-2 A
Short-Circuit Release	42 A
Connection Type	Screw Terminal
Protection Type	Transformer Protection
Switching Capacity	Standard
Series	SIRIUS 3RV1

Common applications

Motor control panels

Power distribution

Industrial automation

Transformer protection circuits

Machine building

Control cabinets

Compatible systems

SIRIUS 3RV1 accessories Industrial control systems

Also known as

Siemens 3RV1421-1BA10 SIRIUS 3RV1421-1BA10 Siemens S0 breaker

Replaces / compatible with

This product has been phased out and is replaced by the Siemens SIRIUS 3RV2 series, with the preferred successor being the 3RV2411-1BA10.

Technical note

Expert tip

Specifically designed for transformer protection, the 3RV1421-1BA10 accounts for transformer inrush currents while offering dependable fault protection.

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Frequently asked questions

What is the current rating and short-circuit release for the Siemens 3RV1421-1BA10?

The Siemens 3RV1421-1BA10 circuit breaker has an adjustable thermal trip range of 1.4 to 2 Amps and a fixed short-circuit release of 42 Amps.