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Siemens 3RV2021-4CA15 S0 Motor Protection Breaker w/ Aux Switch

Siemens 3RV2021-4CA15 S0 Motor Protection Breaker with Aux

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ManufacturerSiemens

Part number3RV2021-4CA15

Size S0

Motor Protection Yes

Class 10

A-Release 16-22 A

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Veteran-owned

CAGE: 9NK75

Motor protection Adjustable trip current Standard switching capacity Screw terminals 1 NO+1 NC auxiliary switches

Product description

The Siemens 3RV2021-4CA15 is a size S0 motor starter protector, engineered for motor protection and equipped with integrated auxiliary contacts. It features a CLASS 10 rating, an adjustable A-release (16-22A), and a fixed N-release of 286A. This model uses screw terminals for connections and includes one normally open (NO) and one normally closed (NC) transverse auxiliary switch for signaling or interlocking purposes.

This versatile breaker is suited for motor control applications in manufacturing, automation, and process industries. The addition of auxiliary switches allows for remote monitoring of breaker status and integration into control logic for enhanced safety and automation.

Stanlo Automation, a veteran-owned supplier, specializes in surplus industrial automation parts. We offer the Siemens 3RV2021-4CA15 at competitive prices, ensuring you get reliable components quickly to minimize your downtime. Partner with Stanlo for your automation needs.

Technical specifications

Size	S0
Motor Protection	Yes
Class	10
A-Release	16-22 A
N-Release	286 A
Terminals	Screw
Aux Switches	1 NO + 1 NC
Switching Capacity	Standard

Common applications

Motor control

Automation systems

Pump controls

Fan controls

Signaling circuits

Compatible systems

PLC systems Control panels Motor starter assemblies Signaling devices

Also known as

Siemens 3RV2021-4CA15 3RV20214CA15 Siemens S0 breaker aux

Replaces / compatible with

Compatible with Siemens 3RV2 series motor protection and control systems.

Technical note

Expert tip

The auxiliary switches on the 3RV2021-4CA15 are designed for transverse mounting and can be easily added or removed without tools.

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Frequently asked questions

Does the Siemens 3RV2021-4CA15 include auxiliary contacts?

Yes, the Siemens 3RV2021-4CA15 features integrated transverse auxiliary switches, specifically 1 normally open (NO) and 1 normally closed (NC) contact, for signaling and control interlocks.