SIEMENS
SIEMENS 3RT20151AK62 Contactor 1NC 110V-120V AC 3P
IEC magnetic contactor with 1NC auxiliary contact, 3 poles, 7 A inductive and 18 A resistive ratings, 110-120 V AC coil, DIN-rail or surface mount
- IEC-compliant motor switching with 3-pole design
- 7 A inductive and 18 A resistive load handling
- 110 V-120 V AC coil for standard control circuits
- Compact 2.4 in × 1.95 in S00 frame fits tight panels
- DIN-rail or surface mounting with screw terminals for quick install
IEC magnetic contactor for motor control
The SIEMENS 3RT20151AK62 is a three-pole IEC contactor rated for 7 A inductive and 18 A resistive loads. It switches AC coils at 110 V to 120 V and includes one normally-closed auxiliary contact for control-circuit signalling. The S00 frame suits compact panels and machinery starters.
DIN-rail mounting with screw terminals
The unit clips onto standard DIN rail or can be surface-mounted using integrated brackets. Screw terminals accept solid or stranded conductors for secure power and control wiring. Installers must verify coil voltage matches the supply and ensure the auxiliary contact is wired for the intended interlock logic.
Continuous duty within rated currents
The contactor is designed for sustained operation at its full-load inductive and resistive ratings without derating. The 1NC auxiliary maintains state reliably during extended hold-in periods. Non-reversing construction means a separate reversing assembly is required for motor-reversal applications.
Highlights
- IEC-compliant motor switching with 3-pole design
- 7 A inductive and 18 A resistive load handling
- 110 V-120 V AC coil for standard control circuits
- Compact 2.4 in × 1.95 in S00 frame fits tight panels
- DIN-rail or surface mounting with screw terminals for quick install
Specifications
| Brand | SIEMENS |
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Questions about this item
How can I confirm the contactor is operating correctly after wiring it to the 110V-120V AC coil?
Apply coil voltage and listen for the audible click of the main contacts closing; then measure continuity across the three power poles and verify the 1NC auxiliary contact opens when energised.
What accessories are included with the SIRIUS 3RT20 unit and what must I source separately?
The contactor ships with integrated screw terminals for wiring; DIN rail clips are built in, but mounting rail, control-circuit fuses and any additional auxiliary blocks are not supplied.
Which coil voltage version should I select for a 110V-120V AC control circuit?
Choose the 3RT20151AK62 variant — its coil is rated 110/120V AC, matching your control supply without needing a separate transformer.
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