SIEMENS
SIEMENS 3RA23178XB301AK6 reversing contactor 2NC 110-120V AC 50/60Hz S00 frame
Reversing contactor with 2NC auxiliary contacts, 110-120V AC coil, DIN-rail or surface mount, mechanical interlock included
- Reversing contactor changes motor rotation direction
- 2NC auxiliary contacts control additional circuits safely
- 110-120V AC coil voltage at 50/60Hz frequency
- DIN rail or surface mounting offers installation flexibility
- Mechanical interlock prevents simultaneous forward and reverse operation
SIRIUS 3RA23 reversing contactor
The SIEMENS 3RA23178XB301AK6 is an IEC magnetic contactor built for reversing motor rotation. It operates on a 110-120V AC coil at 50/60 Hz and uses an S00 frame with 2NC auxiliary contacts. The unit mounts on DIN rail or a surface in a vertical position.
For motor control panels needing forward/reverse
This contactor suits panels that require a mechanical interlock to prevent simultaneous forward and reverse commands. It is not for applications needing an enclosed housing, additional auxiliary contact blocks, or a different coil voltage range.
S00 frame with 2NC auxiliary contacts
The S00 frame size and 2NC auxiliary contact configuration determine whether this unit fits the existing panel layout and control circuit design. Verify both details against the schematic before ordering.
Highlights
- Reversing contactor changes motor rotation direction
- 2NC auxiliary contacts control additional circuits safely
- 110-120V AC coil voltage at 50/60Hz frequency
- DIN rail or surface mounting offers installation flexibility
- Mechanical interlock prevents simultaneous forward and reverse operation
Specifications
| Brand | SIEMENS |
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Questions about this item
Will the coil on this 110-120V AC 50/60Hz contactor need periodic replacement?
The coil is built for continuous duty at the rated voltage and frequency; replacement is only needed if insulation degrades after years of operation.
What limits continuous operation on this S00 frame reversing contactor?
The S00 frame’s rated current and the 2NC auxiliary contacts set the thermal and switching limits during sustained use.
How much heat and noise does the 3RA23178XB301AK6 produce when running all day?
The AC coil generates a low hum and modest warmth typical of IEC contactors; the open S00 frame dissipates heat by convection.
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