SIEMENS
SIEMENS 3RT20251AP60 IEC Magnetic Contactor 220/240V AC 3P 17A
IEC magnetic contactor switches 17 A inductive loads at 220/240 V AC with 3 poles and 1NO/1NC auxiliary contacts
- Reliable motor switching with 17 A inductive rating
- Handles resistive loads up to 40 A for heating circuits
- Wide 220/240 V AC coil suits common supplies
- Compact 3.55 in × 3.75 in frame fits tight panels
- DIN-rail or surface mounting simplifies installation
IEC Magnetic Contactor for Motor Control
The SIEMENS 3RT20251AP60 is an IEC magnetic contactor designed for switching three-phase motor loads up to 17 A inductive and 40 A resistive. It operates on a 220/240V AC coil and provides three main power poles plus one normally open and one normally closed auxiliary contact. The device belongs to the SIRIUS 3RT20 series with frame size S0 and mounts on standard DIN rail or directly on a surface.
Screw Terminals and DIN Rail Mounting Simplify
Power and control connections use screw terminals that accept standard ferrules or solid wire, so no specialised tooling is required. The compact 3.55 in by 3.75 in footprint leaves panel space for additional starters or overload relays, while the DIN rail clip allows quick alignment alongside other SIRIUS components. Because the unit ships without an enclosure, the builder must provide a suitable cabinet or housing to meet local protection requirements.
Non-Reversing Design Handles Continuous Duty Cycles
Rated for non-reversing operation, the contactor sustains its 17 A inductive rating during extended running periods without derating, making it suitable for pumps, fans and conveyor drives that operate for hours at a time. The 220/240V AC coil draws minimal holding current once closed, reducing panel heat build-up during long shifts. Applications requiring forward-reverse switching or frequent inching will need a different contactor arrangement.
Highlights
- Reliable motor switching with 17 A inductive rating
- Handles resistive loads up to 40 A for heating circuits
- Wide 220/240 V AC coil suits common supplies
- Compact 3.55 in × 3.75 in frame fits tight panels
- DIN-rail or surface mounting simplifies installation
Specifications
| Brand | SIEMENS |
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Questions about this item
How long can the 17 A inductive rating be sustained before the contactor reaches its thermal limit?
The contactor is rated for 17 A inductive full-load current and 40 A resistive current; continuous operation at the inductive rating is within its design limits.
What heat or noise should I expect when the coil runs at 220/240 V AC all day?
The IEC SIRIUS 3RT20 frame S0 has no enclosure and uses screw terminals; normal operation produces only modest coil warmth and no fan noise.
Which DIN rail or mounting hardware do I need to install this S0 frame contactor?
The unit mounts on standard DIN rail or directly on a flat surface; no proprietary brackets are required.
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