3RV2042-4KB10

The SIRIUS 3RV2042-4KB10 motor protection circuit breaker features an S3 frame, an adjustable current range of 57 to 75A, a short-circuit instantaneous trip (N-release) value of 975A, a tripping class of Class 20, a short-circuit breaking capacity of up to 100kA, and screw terminal wiring, making it suitable for medium-load motor circuit protection needs.

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Siemens 3RV2042-4KB10 SIRIUS S3 Motor Protection Circuit Breaker Product Image

Product Positioning

The Siemens SIRIUS 3RV2042-4KB10 is an S3 frame motor protection circuit breaker with a Class 20 trip rating and an adjustable current range of 57 to 75 A. It is suitable for medium-sized motors with long start-up times.

Core Product Advantages and Features

Medium current coverage

The current is adjustable from 57 to 75A, making it a lower current specification model in the S3 frame series.

Class 20 Escape Feature

It allows for a longer start-up time and is suitable for motor applications with high inertia loads or heavy-duty start-up.

High breaking capacity protection

With a short-circuit breaking capacity of 100kA and a short-circuit instantaneous trip value of 975A, it enhances circuit safety.

Screw terminals facilitate maintenance

The use of screw terminals facilitates on-site installation and subsequent maintenance of the distribution panel.

project	Specification
Product Type	SIRIUS 3RV2 Motor Protection Circuit Breaker
Frame size	S3
Current adjustment range (A-release)	57...75 A
Short-circuit instantaneous jump value (N-release)	975 A
Break away from level	Class 20
Rated operating voltage	690 V AC
Short circuit breaking capacity	100 kA
Extreme number	3P
Terminal type	Screw terminals
Applicable Standards	IEC 60947-4-1, IEC 60947-2

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