Siemens 3RV2021-4BA10 Sirius Motor Protection Circuit Breaker Size S0

The Siemens 3RV2021-4BA10 is a compact and robust motor protection circuit breaker of the SIRIUS 3RV2 series, developed to protect small electric motors and downstream circuits. Housed in the space-saving S00 frame, this manual motor starter offers an adjustable thermal overload range of 13 A to 20 A (Class 10) in combination with a fixed instantaneous magnetic release of 260 A, providing comprehensive protection in a single device. Mechanically designed for reliability, it offers a mechanical and electrical service life of around 100,000 switching cycles and withstands mechanical shocks of 25 g / 11 ms, making it suitable for rugged industrial use. Installation is simple and flexible - snap onto a 35 mm DIN rail, with screws designed for multiple wire types (solid, multi-stranded, AWG 16 - 8) clamped with M4 screws (tightening torque 2 - 2.5 Nm).

Technical Details:

Brand: Siemens
Model Number: 3RV2021-4BA10
Series: SIRIUS 3RV2
Rated Operating Voltage (Ue): Up to 690 V AC (Pollution Degree 3)
Adjustable Overload Range: 13 ... 20 A (thermal release)
Magnetic Release (Short-Circuit Release): 260 A (fixed)
Rated Current (Ie): 20 A (AC-3 at 400 V)
Poles: 3 (three-phase protection)
Terminal Type: Screw terminals (top and bottom)
Condition: Images comparable

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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