Siemens motor breaker 3RV1021-1KA10, 9–12.5 A, 3-pole S0, 100 kA capacity, screw terminals for reliable protection.

Siemens 3RV1021-1KA10

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Siemens 3RV1021-1KA10 | SIRIUS Motor Protection Circuit Breaker

Overview

The Siemens 3RV1021-1KA10 is a SIRIUS series motor protection circuit breaker crafted to protect motors and equipment from overloads, short circuits, and phase failures. Rated for 9–12.5 A, it offers a 100 kA short-circuit breaking capacity and is labeled as size S0. It includes 3-pole protection and screw terminal connections.

Key Features

Current Setting Range: 9 A to 12.5 A
Rated Operational Voltage (Ue): Up to 690V AC/DC
Short-Circuit Breaking Capacity: 100 kA at 400V
Utilization Category: AC-3
Poles: 3
Terminal Type: Screw terminals
Size: S0
Tripping Class: Class 10
Mounting: Standard DIN rail or screw fixing
Reset Function: Manual and automatic reset options
Switching Function: Manual ON/OFF switching
Contact Type: Fixed

Technical Specifications

Catalog Number: 3RV1021-1KA10
Frame Size: S0
Rated Service Short-Circuit Breaking Capacity (Ics): 100 kA
Operational Performance:
- 100,000 electrical operations (AC-3)
- 1,000,000 mechanical operations
Trip Unit: Thermal-magnetic
Ambient Temperature:
- Operation: -20°C to +60°C
- Storage: -40°C to +80°C
Standards: IEC/EN 60947-4-1, IEC/EN 60947-2
Protection Degree: IP20 (front), higher with enclosure
Weight: Approx. 0.4 kg
Country of Origin: Germany

Applications

Motor Protection: Effectively protects motors from overload and short circuits
Industrial Control Panels: Space-saving design for compact installations
HVAC, Pumps, Compressors: Reliable protection for commercial and industrial systems
Machine Building and OEMs

Why Choose the 3RV1021-1KA10?

Precise Motor Protection: Suitable for a wide range of 3-phase motors
High Fault Capacity: 100 kA ensures safe function under fault conditions
Compact & Modular: Easy to integrate into control systems
Reliable Performance: Durable design with extended operational life
Flexible Installation: Ideal for panel or DIN rail mounting

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PLCVERSE is an independent seller of industrial automation equipment. We are not an authorized distributor, partner, or representative of any of the manufacturers featured on this website. All brand names, trademarks, and logos remain the property of their respective owners. PLCVERSE has no association or endorsement from ABB, Fanuc, B&R, Rockwell Automation, Schneider Electric, Siemens, or any other brands mentioned.

Description

Siemens 3RV1021-1KA10 | SIRIUS Motor Protection Circuit Breaker

Overview

Key Features

Current Setting Range: 9 A to 12.5 A
Rated Operational Voltage (Ue): Up to 690V AC/DC
Short-Circuit Breaking Capacity: 100 kA at 400V
Utilization Category: AC-3
Poles: 3
Terminal Type: Screw terminals
Size: S0
Tripping Class: Class 10
Mounting: Standard DIN rail or screw fixing
Reset Function: Manual and automatic reset options
Switching Function: Manual ON/OFF switching
Contact Type: Fixed

Technical Specifications

Catalog Number: 3RV1021-1KA10
Frame Size: S0
Rated Service Short-Circuit Breaking Capacity (Ics): 100 kA
Operational Performance:
- 100,000 electrical operations (AC-3)
- 1,000,000 mechanical operations
Trip Unit: Thermal-magnetic
Ambient Temperature:
- Operation: -20°C to +60°C
- Storage: -40°C to +80°C
Standards: IEC/EN 60947-4-1, IEC/EN 60947-2
Protection Degree: IP20 (front), higher with enclosure
Weight: Approx. 0.4 kg
Country of Origin: Germany

Applications

Motor Protection: Effectively protects motors from overload and short circuits
Industrial Control Panels: Space-saving design for compact installations
HVAC, Pumps, Compressors: Reliable protection for commercial and industrial systems
Machine Building and OEMs