3RV2421-1KA10

SIRIUS 3RV2421-1KA10, S0 chassis circuit breaker, thermal overload adjustment range 9-12.5A, instantaneous short circuit trip 260A, Icu (400V) 100kA, screw terminals, original factory marking as transformer protection specification.

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Siemens 3RV2421-1KA10 SIRIUS 3RV2 S0 thermal-magnetic circuit breaker

Product Positioning

The 3RV2421-1KA10 belongs to the SIRIUS 3RV2 series S0 chassis circuit breaker, with a thermal overload adjustment range of 9 to 12.5A, covering a lower current range than the 4AA10 model. The original manufacturer indicated that it is a transformer protection specification.

Core Product Advantages and Features

Intermediate current protection

The thermal overload trip is adjustable from 9 to 12.5A, suitable for load protection requirements within this current range.

High short-circuit breaking capacity

The rated short-circuit breaking capacity Icu can reach 100kA under 400V and 50Hz conditions.

Momentary short circuit tripping

The instantaneous magnetic trip value is 260A, which can quickly disconnect the circuit when a fault occurs.

Screw terminal connection

The main circuit uses a screw terminal design, which facilitates wiring and regular maintenance.

project	Specification
model	3RV2421-1KA10
series	SIRIUS 3RV2
Chassis size	S0
Thermal overload trip adjustment range (A-release)	9...12.5 A
Instantaneous short-circuit trip value (N-release)	260 A
Rated short-circuit breaking capacity Icu (400V/50Hz)	100 kA
Extreme number	3P
Terminal type	Screw terminals
Original manufacturer's indicated purpose	Transformer protection
Place of origin	Germany
RoHS	conform to

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