SIEMENS 3RV2021-1CA10 Motor Protection Circuit Breaker

Product Description

SIEMENS 3RV2021-1CA10 is a SIRIUS 3RV2 Motor Protection Circuit Breaker (Motor Starter Protector) designed for protecting three-phase motors and industrial loads against overload, phase failure, and short circuit faults. It features a compact S0 size design, Class 10 overload release, and adjustable thermal overload range.

Specifications

• Brand: SIEMENS
• Model: 3RV2021-1CA10
• Series: SIRIUS 3RV2
• Product Type: Motor Protection Circuit Breaker
• Size: S0
• Number of Poles: 3 poles
• Trip Class: CLASS 10
• Overload Adjustment Range: 1.8…2.5 A
• Instantaneous Short-Circuit Release: 33 A
• Rated Operating Voltage: 20…690 V AC
• Terminal Type: Screw terminal
• Rated Short-Circuit Breaking Capacity: Standard switching capacity
• Rated Insulation Voltage: 690 V
• Mounting: DIN rail / contactor mounting
• Weight: Approx. 0.35 kg

Advantages & Features

• Provides reliable motor overload protection
• Protects against short circuits and phase loss
• Adjustable current setting for different motor ratings
• Compact SIRIUS modular design
• Can be combined with Siemens SIRIUS contactors to form motor starters
• Fast fault isolation improves equipment safety
• Suitable for industrial continuous operation

Applications

• Motor control cabinets
• Industrial machinery
• Pumps and fans
• Conveyor systems
• Production line equipment
• Factory automation systems
• Siemens SIRIUS motor starter assemblies

Notes

• Confirm motor rated current before adjusting the overload setting
• Check coordination with contactor and overload relay selection
• Ensure correct phase wiring before operation
• Do not exceed rated current range
• Disconnect power before installation or maintenance
• Installation should follow Siemens electrical standards