SIEMENS
SIEMENS 3RT20241AK60 Contactor 1NC/1NO 110-120V AC 3P
IEC magnetic contactor with 12 A inductive and 40 A resistive ratings, 110-120 V AC coil, three poles, 1NO/1NC auxiliary, DIN-rail or surface mount
- IEC-standard contactor for reliable motor switching
- 12 A inductive / 40 A resistive load capacity
- 110–120 V AC coil suits common control voltages
- Three-pole main contacts plus 1 NO / 1 NC auxiliary
- Compact S0 frame mounts on DIN rail or surface
SIEMENS 3RT20241AK60 Contactor
The SIEMENS 3RT20241AK60 is an IEC magnetic contactor built for industrial control panels and motor-starting circuits. It suits electricians and maintenance engineers who need a compact, DIN-rail mountable switch for three-phase loads up to 12 A inductive or 40 A resistive.
Capacity and headroom
This contactor carries 12 A inductive and 40 A resistive full-load current on its three main poles, giving headroom for small motors, heating elements and lighting banks. It runs out of rating above those currents, so larger compressors or multi-motor starters need a bigger frame.
Thermals, noise and power draw
The AC coil operates at 110 V to 120 V, drawing only the magnetising current needed to hold the armature closed, so steady-state power draw is low. In normal operation the unit runs silently with no moving air, and its screw-terminal construction keeps temperature rise within IEC limits for the rated currents.
Highlights
- IEC-standard contactor for reliable motor switching
- 12 A inductive / 40 A resistive load capacity
- 110–120 V AC coil suits common control voltages
- Three-pole main contacts plus 1 NO / 1 NC auxiliary
- Compact S0 frame mounts on DIN rail or surface
Specifications
| Brand | SIEMENS |
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Questions about this item
Will the 110-120 V AC coil on this SIRIUS 3RT20 contactor operate reliably with my existing 120 V control transformer?
Yes, the coil is rated for 110/120 V AC so it matches standard 120 V control circuits directly.
How can I verify the contactor is switching correctly after wiring it to the DIN rail?
Apply coil voltage and listen for a firm mechanical click; then measure continuity across the three main poles and the 1NO/1NC auxiliary contacts to confirm state change.
Does the box include mounting hardware for DIN rail or surface installation, or must I order screws and clips separately?
The contactor body has integral DIN rail clips and surface-mount holes; only mounting screws for surface use are supplied by the installer.
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