3RA23158XB301BB4

Composed of two S00-size contactors mechanically interlocked, it supports forward and reverse switching of three-phase motors, has a rated operating current of 7 amps, uses screw terminal wiring and can be clamped onto a 35mm DIN rail, is suitable for environments ranging from -25 to 60 degrees Celsius, and has a mechanical life of 10 million cycles.

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Siemens 3RA2315-8XB30-1BB4 SIRIUS Forward/Reverse Combination Contactor

Product Positioning

The 3RA2315-8XB30-1BB4 is a standard forward and reverse combination contactor from the Siemens SIRIUS 3RA23 series. It consists of an S00 size contactor with an interlocking module, driven by a 24VDC coil, and is suitable for forward and reverse automatic control of small and medium power three-phase motors.

Core Product Advantages and Features

Mechanical and electrical double interlock

This ensures that the forward and reverse contactors do not engage simultaneously, effectively preventing short circuits in the main circuit.

Wide load range

It can carry a 3kW load at 400V and still support a 4kW load at 690V, flexibly adapting to different voltage applications.

Compact S00 volume

The contactor assembly is compact in size, making it easy to densely arrange in the distribution box and saving installation space.

Long lifespan and stable operation

With a mechanical life of 10 million operating cycles, it is suitable for use in production equipment that is frequently started and stopped.

project	Specification
Model (MLFB)	3RA2315-8XB30-1BB4
Product Type	Forward and reverse rotation combination contactor (including mechanical/electrical interlocks)
Rated operating current (AC-3, 400V)	7 A
Rated power (AC-3, 400V/690V)	3 kW / 4 kW
Coil rated voltage	24 V DC
Coil power consumption	Approximately 4 W
Pole number/contact configuration	3 poles, 3 sets of normally open (3NO) main contacts
External dimensions (Siemens specifications)	S00
Maximum rated insulation voltage	690 V
Terminal type	Screw terminals
Installation method	Screw fixing or 35mm guide rail engagement
External dimensions (height × width × depth)	68 × 90 × 73 mm
net weight	Approximately 0.615 kg
Mechanical life	Approximately 10 million operation cycles

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3RA23158XE301BB4

Composed of two sets of contactors with mechanical and electrical interlocking, it is suitable for forward and reverse switching control of three-phase motors. The S00 has a compact size and can be directly mounted on a 35mm standard DIN rail. It boasts a mechanical life of up to 10 million operating cycles and ensures stable and reliable long-term operation.

3RA23158XB301AN2

Combined with the same S00 contactor as the 3RA2315 series, it adopts 220V AC coil power supply, which is suitable for production lines that already have 220V control power supply on site. The main circuit is rated at 7 amps and can carry a 3kW load. It supports 35mm DIN rail mounting.

3RA23158XB301AF0

The S00 forward/reverse combination contactor, equipped with a 110V AC coil, has a rated main contact current of 6 amps at 500V and 4.9 amps at 690V. It is suitable for automatic circuits involving forward and reverse motor rotation and features mechanical and electrical interlocks to ensure safe operation.