Siemens 3RV2021-4BA20

Siemens 3RV2021-4BA20 | SIRIUS Motor Protection Circuit Breaker

Overview

The Siemens 3RV2021-4BA20 is a SIRIUS series motor protection circuit breaker for protecting motors and equipment against overloads, short circuits, and phase loss. It offers a setting range of 13–20 A, 3-pole switching, spring-loaded terminals, and a high breaking capacity of 55 kA, ideal for compact industrial panels.

Key Features

• Current Setting Range: 13 A to 20 A

• Short-Circuit Breaking Capacity: 55 kA at 400V

• Voltage Rating: Up to 690V AC

• Utilization Category: AC-3

• Connection Type: Spring-loaded terminals

• Tripping Class: Class 10

• Manual Reset and Switching

• Size: S0 for compact installations

• Standards Compliance: IEC/EN 60947-4-1, -2

Technical Specifications

• Catalog Number: 3RV2021-4BA20

• Frame Size: S0

• Poles: 3

• Protection Class: IP20

• Mounting: DIN rail or screw

• Ambient Temperature Range: -20°C to +60°C

• Weight: Approx. 0.435 kg

• Certifications: CE, UL, CSA, EAC

• Country of Origin: Germany

Applications

• Electric motor protection (13–20 A)

• Industrial panels and MCCs

• Pumps, HVAC systems, compressors

• Machine OEMs needing reliable compact protection

Why Choose the 3RV2021-4BA20?

• Compact and robust for industrial use

• Reliable motor protection with built-in thermal-magnetic tripping

• Easy wiring via spring terminals

• Flexible DIN rail mounting

• Complies with global standards

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NEW product in original sealed packaging. The product may be of older version or design. The packaging may have markings, signs of discoloration, and wear. DDPARTSSOLUTION Warranty: 1 Year. Manufacturer's Warranty and Support NEVER apply