Home › Manufacturers › Siemens › 3RV2021-0HA15

Siemens

Siemens 3RV2021-0HA15 Motor Protection Circuit Breaker - S0, 0.55-0.8A w/ Aux

Siemens 3RV2021-0HA15 Motor Protection Circuit Breaker, Size S0 w/ Aux.

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

In Stock — Ready to Ship

ManufacturerSiemens

Part number3RV2021-0HA15

Manufacturer Siemens

Part Number 3RV2021-0HA15

Size S0

Type Motor Protection Circuit Breaker

Get a price for 3RV2021-0HA15

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

Motor protection Adjustable thermal release Fixed magnetic release Auxiliary contacts (1 NO+1NC) Screw terminals Standard switching capacity

Product description

The Siemens 3RV2021-0HA15 is a Size S0 motor protection circuit breaker featuring a Class 10 rating, an adjustable A-release from 0.55 to 0.8 A, and a 10 A N-release. This model includes integrated transverse auxiliary switches (1 NO + 1 NC) for additional control and signaling functions. It utilizes screw terminals for secure connections and offers standard switching capacity.

This versatile circuit breaker is designed for protecting electric motors in industrial settings, offering enhanced control capabilities through its auxiliary contacts. These contacts can be used for remote signaling of the breaker's status or for interlinking with control circuits in automation systems, manufacturing equipment, and machine tools.

Stanlo Automation, your reliable veteran-owned source for surplus industrial automation parts, offers the Siemens 3RV2021-0HA15. Benefit from our competitive pricing, quick fulfillment, and commitment to providing quality components to keep your operations running efficiently and minimize downtime.

Technical specifications

Manufacturer	Siemens
Part Number	3RV2021-0HA15
Size	S0
Type	Motor Protection Circuit Breaker
Class	10
A-Release Range	0.55-0.8 A
N-Release	10 A
Terminal Type	Screw Terminal
Auxiliary Contacts	1 NO + 1 NC
Switching Capacity	Standard

Common applications

Motor control with signaling

Automation systems

Industrial machinery

Packaging equipment

Control panels

Machine tools

Compatible systems

Compatible with Siemens Sirius motor control components. The auxiliary contacts can be wired into PLC input modules or control relays for status monitoring.

Also known as

Siemens 3RV2021-0HA15 breaker Siemens S0 motor protection with aux 3RV20 with auxiliary switches Siemens 0.55-0.8A aux breaker

Replaces / compatible with

This part is a direct replacement for Siemens 3RV2021-0HA15 motor protection circuit breakers with auxiliary contacts. It ensures identical functionality and integration capabilities.

Technical note

Expert tip

The auxiliary contacts (1 NO + 1 NC) on the 3RV2021-0HA15 can be used for remote indication of trip status or for interlocking safety circuits in automated machinery.

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 auxiliary contacts are included with the Siemens 3RV2021-0HA15 circuit breaker?

The Siemens 3RV2021-0HA15 comes equipped with one normally open (NO) and one normally closed (NC) auxiliary contact. These are transverse mounted and can be used for signaling or control circuit integration.