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Transparent 3-pole contactor, DIN rail mount, screw clamp terminals

Schneider Electric

Schneider Electric Square D LC1D18BD 18 A 24 V DC 3-pole contactor

SKU CH-NQJ8-X0Q21

A 3-pole IEC contactor rated 18 A with a 24 V DC coil and 1NO/1NC auxiliary contacts for DIN-rail or plate mounting

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • 18 A inductive switching for motor loads
  • 24 V DC coil for low-voltage control
  • 3-pole main contacts plus 1 NO / 1 NC auxiliary
  • DIN-rail or plate mounting fits standard panels
  • 5 hp at 240 V AC three-phase rating

18 A 3-pole contactor for DC control circuits

This Schneider Electric Square D LC1D18BD is an IEC magnetic contactor rated for 18 A inductive loads at 240 V AC three-phase. It operates from a 24 V DC coil and provides three main power poles plus two auxiliary contacts configured as 1NO/1NC. The unit suits motor-starting and power-switching tasks in industrial automation panels.

Sustained-load behaviour with 24 V DC coil

The 24 V DC coil draws steady power without the inrush peaks common on AC coils, so panel power supplies see a predictable load during continuous operation. Rated at 5 hp for three-phase 240 V AC duty, the contactor maintains its 18 A inductive rating without derating for cycling, and the screw-clamp terminals resist loosening under thermal expansion.

DIN-rail mounting and screw-clamp terminals

At 3.03 in high by 1.77 in wide the housing clips onto standard DIN rail or can be plate-mounted, giving flexibility in cabinet layout. Transparent cover material allows visual confirmation of contact status without removal. Screw-clamp terminals accept solid or stranded conductors for both power and auxiliary circuits, simplifying field wiring and periodic inspection.

How it compares

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Price $125.99
Pricier than about 80% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameSQUARE D
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

How much heat does the 18 A contactor generate when it runs continuously on a 24 V DC coil?

The 24 V DC coil draws steady power, and the 18 A inductive rating means normal warm-up; mount on a DIN rail with airflow to keep temperatures in check.

What wiring and mounting hardware must I already have to install this contactor?

You need screw-clamp terminal wiring, a 24 V DC control supply, and either a DIN rail or a flat plate for the mounting style.

Will this 3-pole, non-reversing contactor work alongside my existing 240 V AC motor starter rated for 5 hp?

Yes — it is rated 5 hp at 240 V AC three-phase and shares the same screw-clamp terminals, so it integrates with existing starters.

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