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Transparent miniature IEC magnetic contactor, DIN rail mount, screw clamp terminals, 3-pole, 230-240V AC coil, 12A inductive

Schneider Electric

Schneider Electric Square D LC1K1210U7 3P 230-240V AC 12A 1NO Contactor

SKU CH-J4ZJ-RYAQ9

A 3-pole miniature IEC magnetic contactor rated 12 A inductive at 230-240 V AC with one normally open auxiliary contact, screw-clamp terminals and DIN-rail mounting

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • 12 A inductive rating for motor loads
  • 20 A resistive rating for heating circuits
  • 230-240 V AC coil matches panel voltage
  • Screw clamp terminals speed up wiring
  • DIN rail or plate mounting fits existing enclosures

IEC Miniature Contactor for Motor Control

The Schneider Electric Square D LC1K1210U7 is a three-pole IEC miniature magnetic contactor rated for 12 A inductive and 20 A resistive loads. It operates on a 230-240 V AC coil and provides one normally open auxiliary contact for status signalling or interlocking. The unit mounts on DIN rail or a plate using screw clamp terminals for secure wiring.

Upgrading from Overload Relays or Manual Starters

This contactor replaces manual motor starters or standalone overload relays when remote, automatic switching is required. The jump is worth it for circuits needing frequent starts and stops, integration with PLC outputs, or coordination with thermal overload relays in the TeSys K series. It is not suited for applications that demand reversing operation or higher pole counts.

Limits of the IEC Miniature Frame

The non-reversing design restricts use to single-direction motor loads or resistive heating circuits. With no enclosure rating, the device must be installed inside a suitable cabinet for protection against dust and moisture. The 12 A inductive rating caps the maximum motor size, and the 1NO auxiliary contact limits complex control sequences without additional accessories.

Highlights

  • 12 A inductive rating for motor loads
  • 20 A resistive rating for heating circuits
  • 230-240 V AC coil matches panel voltage
  • Screw clamp terminals speed up wiring
  • DIN rail or plate mounting fits existing enclosures

Specifications

BrandSQUARE D
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What DIN rail or plate mounting dimensions does the 1.77 in wide contactor require?

The contactor mounts on a standard DIN rail or plate using its 1.77 in width and 2.28 in height footprint, secured by the integral mounting clips.

Which coil terminals accept the 230-240V AC supply during installation?

Connect the 230-240V AC coil supply to the designated A1 and A2 screw clamp terminals; the common error is wiring the load circuit to these coil terminals instead.

When should the 1NO auxiliary contact be replaced after repeated 12 A inductive switching?

Replace the 1NO auxiliary contact when contact resistance rises or switching becomes unreliable after extended 12 A inductive duty cycles.

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