SIEMENS
SIEMENS 3RT20181BB41 IEC Magnetic Contactor 24V DC 3P 1NO 16A
IEC magnetic contactor with 24 V DC coil, three poles, one normally-open auxiliary contact and 16 A inductive rating for DIN-rail or surface mounting
- IEC-rated 16 A inductive switching handles motor loads
- 24 V DC coil integrates with low-voltage control circuits
- Three-pole non-reversing contactor simplifies starter wiring
- Screw terminals and DIN-rail mounting speed panel assembly
- 1 NO auxiliary contact provides ready status feedback
IEC Magnetic Contactor 24V DC
This IEC magnetic contactor from SIEMENS is built for switching three-phase inductive loads up to 16 A and resistive loads up to 22 A. It suits control panels, motor starters and automation equipment that require a compact non-reversing contactor with a 24 V DC coil.
DIN rail or surface mounting with screw terminals
The unit mounts on a standard DIN rail or directly on a surface using screw terminals for wiring. Its S00 frame size and overall dimensions of 1.95 in height by 2.4 in width fit tight panel spaces. Ensure the control circuit supplies 24 V DC; an AC coil will not operate this contactor.
16 A inductive full-load current rating
The contactor is rated for 16 A inductive and 22 A resistive at full load. Select this part only when your load current stays within these limits; higher-current motors or heaters require a larger frame size.
Highlights
- IEC-rated 16 A inductive switching handles motor loads
- 24 V DC coil integrates with low-voltage control circuits
- Three-pole non-reversing contactor simplifies starter wiring
- Screw terminals and DIN-rail mounting speed panel assembly
- 1 NO auxiliary contact provides ready status feedback
Specifications
| Brand | SIEMENS |
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Questions about this item
How can I verify the contactor is operating correctly after wiring the 24V DC coil and the three main poles?
Apply 24V DC to the coil terminals and listen for the audible click of the armature engaging, then use a multimeter to confirm continuity across each of the three power poles and the single normally open auxiliary contact.
What components are included with the contactor and what must be purchased separately for a complete installation?
The contactor unit with screw terminals and one integrated 1NO auxiliary contact is supplied; DIN rail clips are built in, but mounting rail, wiring, ferrules, and any overload relay or surge suppressor are not included.
Which coil voltage and frame size should I select for a 24V DC control circuit in a compact panel?
Choose the 24V DC coil version in the S00 frame size, which measures 1.95 in high by 2.4 in wide and provides 16 A inductive and 22 A resistive ratings on three poles.
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