Siemens 3RV2021-4EA20 Sirius Motor Protector Circuit Breaker 32 Ampere

The Siemens SIRIUS 3RV2021-4EA20 is a powerful motor protector circuit breaker with S0 frame from the proven 3RV2 series, designed for the safe and efficient protection of motor feeders. With its compact footprint (119 mm height × 45 mm width × 97 mm depth), the 3-pole device can be easily integrated into dense control cabinets and modular automation systems. It supports motors with a rated current of up to 32 A (AC-3 at 400 V) and protects systems up to 15 kW at 400 V and 30 kW at 690 V. The circuit breaker combines an adjustable thermal overload release (27 - 32 A) with a fixed magnetic release (400 A), providing reliable overload and short-circuit protection. With a tripping class of Class 10, it handles typical motor starting behavior and moderate inrush currents with accuracy.

Technical Details:

Brand: Siemens
Model Number: 3RV2021-4EA20
Series: SIRIUS 3RV2
Rated Operating Voltage (Ue): 20 ... 690 V AC (Pollution Degree 3)
Rated Frequency: 50 ... 60 Hz
Rated Current (AC-3): 32 A
Overload Adjustment Range: 27 ... 32 A (thermal release)
Magnetic Release: Fixed at 400 A
Condition: Comparable to illustrations

Note:

For detailed technical data and processing instructions, we strongly recommend consulting the original data sheets or contacting the manufacturer directly.

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32 Ampere max.