SIEMENS
SIEMENS 3RT25261AK60 Contactor 1NC/1NO 110-120V AC 4P
Four-pole IEC contactor rated 25 A inductive and 40 A resistive with 110–120 V AC coil and DIN-rail mounting
- IEC contactor rated for 25 A inductive loads
- 40 A resistive switching capacity for heating circuits
- 110-120 V AC coil fits standard control voltages
- Four-pole main circuit plus 1 NO / 1 NC auxiliary
- DIN-rail or surface mount with screw terminals
IEC Magnetic Contactor
The SIEMENS 3RT25261AK60 is a 4-pole IEC magnetic contactor designed for switching motor loads and power circuits in industrial control panels. It operates on a 110-120V AC coil voltage and mounts on DIN rail or surface for panel integration.
Auxiliary Contacts and Terminals
The contactor includes two auxiliary contacts in a 1NO/1NC configuration for control circuit signalling and interlocking. Screw terminals provide secure connections for both main and auxiliary conductors without specialised tooling.
Industrial Motor Control
This unit suits panels requiring a non-reversing contactor rated at 25 A inductive and 40 A resistive full-load current within a Frame Size S0 footprint. Buyers needing reversing capability, a different coil voltage, or an enclosed NEMA-rated housing should look elsewhere.
Highlights
- IEC contactor rated for 25 A inductive loads
- 40 A resistive switching capacity for heating circuits
- 110-120 V AC coil fits standard control voltages
- Four-pole main circuit plus 1 NO / 1 NC auxiliary
- DIN-rail or surface mount with screw terminals
Specifications
| Brand | SIEMENS |
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Questions about this item
How often will the screw terminals and 1NO/1NC auxiliary contacts need inspection or replacement under normal duty?
Screw terminals should be checked for tightness during scheduled panel maintenance; the two auxiliary contacts are rated for the same mechanical life as the main poles and replaced only if contact resistance rises.
What sustained current level will hit the thermal limit of the 4-pole IEC frame first?
Continuous inductive loads above 25 A or resistive loads above 40 A will reach the contactor’s rated thermal ceiling.
How much heat and coil power does the 110-120 V AC coil produce during all-day operation?
The coil draws only a few watts at 110-120 V AC, so heat rise inside the 5.1 in by 3.6 in S0 housing stays low and the unit runs silently on DIN rail or surface mount.
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