Home › Manufacturers › Siemens › 3RV1421-1HA10

Siemens

Siemens 3RV1421-1HA10 S0 Circuit Breaker - Transformer Protection

Siemens 3RV1421-1HA10 S0 circuit breaker for transformer protection.

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RV1421-1HA10

Size S0

Rated Current 6.3-10 A

Short-Circuit Release 125 A

Connection Type Screw Terminal

Get a price for 3RV1421-1HA10

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

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 3RV1421-1HA10 is a Size S0 circuit breaker designed for transformer protection. It offers an adjustable thermal trip range of 6.3 to 10 A and a fixed short-circuit release of 125 A. This breaker uses screw terminals for connection and provides standard switching capacity. Please be aware that this product is phased out, with the SIRIUS 3RV2 series being its successor.

This circuit breaker is suitable for protecting transformers in a variety of industrial applications, including motor control centers, power distribution units, and specialized machinery. Its robust design ensures reliable performance in demanding environments.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, is your reliable source for the Siemens 3RV1421-1HA10. We offer quality-assured components and expertise to help you maintain your critical systems.

Technical specifications

Size	S0
Rated Current	6.3-10 A
Short-Circuit Release	125 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 3RV1421-1HA10 SIRIUS 3RV1421-1HA10 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 3RV2411-1HA10.

Technical note

Expert tip

The 3RV1421-1HA10 is specifically designed for transformer protection, accounting for inrush currents while ensuring reliable fault tripping.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

What are the trip settings for the Siemens 3RV1421-1HA10 circuit breaker?

The Siemens 3RV1421-1HA10 circuit breaker features an adjustable thermal trip range of 6.3 to 10 Amps and a fixed short-circuit release of 125 Amps.