3RA23388XB301AN2

The Siemens SIRIUS S2 forward and reverse contactor combination has a rated current of 80A, AC-3, and is compatible with 37kW/400V motors. The coil voltage is 220V AC, 50/60Hz. It includes mechanical and electrical interlocks and two sets of auxiliary contacts, and can be used for switching applications with motors up to 50HP.

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Siemens 3RA2338-8XB30-1AN2 S2 forward and reverse contactor combination

Product Positioning

The 3RA2338-8XB30-1AN2 is a combination of S2-size forward and reverse contactors from the SIRIUS 3RA23 series. It is powered by a 220V AC coil and is suitable for forward and reverse applications of large motors with existing 220V control circuits.

Core Product Advantages and Features

220V AC coil

The coil has a rated voltage of 220V and a frequency of 50/60Hz, which corresponds to common control power supply specifications in the Asia-Pacific region.

50HP-level switching capability

It corresponds to a rated AC-3 of 37kW under 400V, which can be switched to a three-phase motor of approximately 50HP.

Front auxiliary contact

One set of NO/NC auxiliary contacts is installed at the front for easy status monitoring and interlock control.

Modular assembly design

It is assembled with two sets of contactors and an interlocking module, and individual components can be replaced during maintenance.

project	Specification
Model (MLFB)	3RA2338-8XB30-1AN2
Product Type	SIRIUS forward and reverse contactor combination
Rated power (AC-3)	37 kW / 400 V
Rated current (AC-3)	80 A
corresponding horsepower	Approximately 50 HP @ 460V
Frame size	S2
coil voltage	220 V AC, 50/60 Hz
Extreme number	3 poles (one set for forward and one set for reverse rotation)
Auxiliary contact	Pre-position 1 NO/1 NC
Interlocking method	Mechanical interlock + electrical interlock
Wiring method	Screw terminals
Installation method	35mm DIN rail

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