SIEMENS
SIEMENS 3RT20181AK61 IEC Magnetic Contactor 1NO 110-120V AC 3P
IEC magnetic contactor with 3 poles, 1 NO auxiliary contact, 110-120 V AC coil, 16 A inductive and 22 A resistive ratings, DIN-rail or surface mount, screw terminals
- IEC magnetic contactor rated for 16 A inductive loads
- 110-120 V AC coil voltage suits standard control circuits
- Three-pole main contacts switch three-phase motor circuits
- Single normally-open auxiliary contact provides status feedback
- Compact S00 frame mounts on DIN rail or surface
SIRIUS 3RT20 IEC Contactor
The SIEMENS SIRIUS 3RT20 is a three-pole IEC magnetic contactor designed for industrial motor control circuits. It mounts on a DIN rail or surface and uses screw terminals for wiring. The unit ships new without an enclosure.
110-120V AC Coil Voltage
This contactor operates on a 110/120V AC control coil, which determines compatibility with your control circuit voltage. It provides one normally open auxiliary contact for status signalling. The coil voltage is the single specification that decides whether this is the correct part for your panel.
16 A Inductive and 22 A Resistive Ratings
The contactor handles a full load current of 16 A inductive and 22 A resistive across three poles. It is a non-reversing unit with a compact frame size S00 measuring 2.45 in height and 6.5 in width. Normal operation produces minimal heat and silent switching within these rated limits.
Highlights
- IEC magnetic contactor rated for 16 A inductive loads
- 110-120 V AC coil voltage suits standard control circuits
- Three-pole main contacts switch three-phase motor circuits
- Single normally-open auxiliary contact provides status feedback
- Compact S00 frame mounts on DIN rail or surface
Specifications
| Brand | SIEMENS |
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Questions about this item
What does the 16 A inductive rating mean for motor loads in my panel?
The contactor is rated to switch inductive motor loads up to 16 A at the rated coil voltage, which covers typical small three-phase motors in the S00 frame size.
How does the 110-120 V AC coil voltage affect control-circuit compatibility?
The coil operates on standard 110 V to 120 V AC control supplies, so it connects directly to common panel control transformers without extra voltage conversion.
Will the 6.5 in width and 2.45 in height fit on a standard DIN rail in my enclosure?
The unit measures 6.5 in wide by 2.45 in high and mounts on DIN rail or surface, matching the S00 frame footprint used in many IEC panel layouts.
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