SIEMENS
SIEMENS 3RT20151AB01 IEC Magnetic Contactor 1NO 24V AC 3P Non-Reversing
Non-reversing three-pole IEC magnetic contactor with 1NO auxiliary, 24 V AC coil, 7 A inductive and 18 A resistive ratings
- Non-reversing three-pole design simplifies motor control circuits
- 24V AC coil voltage suits common control panel supplies
- 1NO auxiliary contact provides ready status feedback
- 30000000-cycle mechanical durability reduces maintenance intervals
- IP20 open frame fits DIN rail or surface mounting
SIRIUS 3RT20 Series Contactor
The SIEMENS 3RT20151AB01 is a non-reversing, three-pole IEC magnetic contactor from the SIRIUS 3RT20 series. It features a 1NO auxiliary contact configuration and operates on a 24V AC coil voltage. The compact S00 frame size suits DIN rail or surface mounting in industrial control panels. It is designed for switching motor loads up to specific horsepower ratings.
Thermals Noise and Power Draw
The contactor operates within a temperature range of -13 Degrees F to +140 Degrees F. It handles full load amps-inductive up to 7 A and full load amps-resistive up to 18 A. Maximum operating watts reach 3 kW at 400V for AC-3 and AC-4 duty, and up to 11 kW at 400V for AC-1 duty. Coil operation is rated for 50/60 Hz frequencies.
Build Quality Connectors and Mounting
The device has an IP20 rating with no enclosure, requiring installation inside a suitable cabinet. Electrical connections use screw-type terminals for secure wiring. Mechanical operating durability is rated for up to 30000000 cycles under standard testing conditions. It adheres to REACH Art 33 and WEEE (2012/19/EU) standards. This unit is not for applications requiring a reversing contactor or a different coil voltage.
Highlights
- Non-reversing three-pole design simplifies motor control circuits
- 24V AC coil voltage suits common control panel supplies
- 1NO auxiliary contact provides ready status feedback
- 30000000-cycle mechanical durability reduces maintenance intervals
- IP20 open frame fits DIN rail or surface mounting
Specifications
| Brand | SIEMENS |
|---|
Questions about this item
How do I mount the S00 frame contactor on a DIN rail or panel?
Snap the compact S00 frame onto a standard DIN rail or secure it with the integrated mounting holes for surface fixing; the common mistake is not seating the rail clip fully so the contactor can shift under vibration.
What maintenance or replacement will the 24 V AC coil and 1NO auxiliary contact need over time?
The coil and 1NO auxiliary are built for up to 30000000 mechanical cycles; plan to replace the contactor when contact wear or coil dropout appears, as no user-serviceable parts are inside.
Which thermal or electrical limit appears first during continuous three-phase 400 V AC-3 duty?
The 7 A inductive (AC-3) rating at 400 V / 3 kW is the first ceiling; sustained loads above this will overheat the power poles before the 18 A resistive (AC-1) or 11 kW AC-1 limits are reached.
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