SchneiderContactors and Protection Relays

LC1D18RD

Name: LC1D18RD
Brand: Schneider
SKU: LC1D18RD

Compact and reliable 3 pole contactor for motor control applications.

Product ModelLC1D18RD

Product ID31538

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureCompact design for easy installation
2
FeatureReliable efficiency with 18 AMP AC-3 rating
3
FeatureBuilt-in auxiliary contacts for added functionality
4
FeatureSuitable for motor control applications up to 10 HP at 460V
5
FeatureDIN rail mounting for space-saving solutions

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range

TeSys

Range of Product

TeSys Deca

Product or Component Type

Contactor

Device short name

LC1D

Contactor application

Resistive loadMotor control

Utilisation category

AC-4AC-1AC-3

[Ue] rated operational voltage

Power circuit <= 690 V AC 25...400 HzPower circuit <= 300 V DC

[Ie] rated operational current

18 A (at <140 °F (60 °C)) at <= 440 V AC AC-3 for power circuit32 A (at <140 °F (60 °C)) at <= 440 V AC AC-1 for power circuit18 A (at <140 °F (60 °C)) AC AC-3e

[Uc] control circuit voltage

440 V DC

Motor power kW

4 kW at 220...230 V AC 50/60 Hz (AC-3)7.5 kW at 380...400 V AC 50/60 Hz (AC-3)9 kW at 415...440 V AC 50/60 Hz (AC-3)10 kW at 500 V AC 50/60 Hz (AC-3)10 kW at 660...690 V AC 50/60 Hz (AC-3)4 kW at 400 V AC 50/60 Hz (AC-4)

Maximum Horse Power Rating

1 hp at 115 V AC 50/60 Hz for 1 phase motors3 hp at 230/240 V AC 50/60 Hz for 1 phase motors5 hp at 200/208 V AC 50/60 Hz for 3 phase motors5 hp at 230/240 V AC 50/60 Hz for 3 phase motors10 hp at 460/480 V AC 50/60 Hz for 3 phase motors15 hp at 575/600 V AC 50/60 Hz for 3 phase motors

compatibility code

LC1D

Pole contact composition

3 NO

Protective cover

With

[Ith] conventional free air thermal current

10 A (at 140 °F (60 °C)) for signalling circuit32 A (at 140 °F (60 °C)) for power circuit

Irms rated making capacity

140 A AC for signalling circuit conforming to IEC 60947-5-1250 A DC for signalling circuit conforming to IEC 60947-5-1300 A at 440 V for power circuit conforming to IEC 60947

Rated breaking capacity

300 A at 440 V for power circuit conforming to IEC 60947

[Icw] rated short-time withstand current

145 A 104 °F (40 °C) - 10 s for power circuit240 A 104 °F (40 °C) - 1 s for power circuit40 A 104 °F (40 °C) - 10 min for power circuit84 A 104 °F (40 °C) - 1 min for power circuit100 A - 1 s for signalling circuit120 A - 500 ms for signalling circuit140 A - 100 ms for signalling circuit

Associated fuse rating

10 A gG for signalling circuit conforming to IEC 60947-5-150 A gG at <= 690 V coordination type 1 for power circuit35 A gG at <= 690 V coordination type 2 for power circuit

Average impedance

2.5 mOhm - Ith 32 A 50 Hz for power circuit

Power dissipation per pole

2.5 W AC-10.8 W AC-3

[Ui] rated insulation voltage

Power circuit 690 V IEC 60947-4-1Power circuit 600 V CSAPower circuit 600 V ULSignalling circuit 690 V IEC 60947-1Signalling circuit 600 V CSASignalling circuit 600 V UL

Overvoltage category

III

Pollution degree

[Uimp] rated impulse withstand voltage

6 kV IEC 60947

Safety reliability level

B10d = 1369863 cycles contactor with nominal load EN/ISO 13849-1B10d = 20000000 cycles contactor with mechanical load EN/ISO 13849-1

Mechanical durability

30 Mcycles

Electrical durability

1.65 Mcycles 18 A AC-3 <= 440 V1 Mcycles 32 A AC-1 <= 440 V

Control circuit type

DC standard

Coil technology

With integral suppression device

Control circuit voltage limits

0.1...0.25 Uc -40...158 °F (-40...70 °C) drop-out DC0.7...1.25 Uc -40...140 °F (-40...60 °C) operational DC1...1.25 Uc 140...158 °F (60...70 °C) operational DC

Inrush power in W

5.4 W 68 °F (20 °C))

Hold-in power consumption in W

5.4 W 68 °F (20 °C)

Operating time

63 Â±15 % ms closing20 Â±20 % ms opening

Time constant

28 ms

Maximum operating rate

3600 cyc/h 140 °F (60 °C)

Connections - terminals

Control circuit: screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: flexible without cable endControl circuit: screw clamp terminals 2 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: flexible without cable endControl circuit: screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: flexible with cable endControl circuit: screw clamp terminals 2 0.002...0.004 inÂ² (1...2.5 mmÂ²) - cable stiffness: flexible with cable endControl circuit: screw clamp terminals 1 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: solid without cable endControl circuit: screw clamp terminals 2 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: solid without cable endPower circuit: screw clamp terminals 1 0.002...0.009 inÂ² (1.5...6 mmÂ²) - cable stiffness: flexible without cable endPower circuit: screw clamp terminals 2 0.002...0.009 inÂ² (1.5...6 mmÂ²) - cable stiffness: flexible without cable endPower circuit: screw clamp terminals 1 0.002...0.009 inÂ² (1...6 mmÂ²) - cable stiffness: flexible with cable endPower circuit: screw clamp terminals 2 0.002...0.006 inÂ² (1...4 mmÂ²) - cable stiffness: flexible with cable endPower circuit: screw clamp terminals 1 0.002...0.009 inÂ² (1.5...6 mmÂ²) - cable stiffness: solid without cable endPower circuit: screw clamp terminals 2 0.002...0.009 inÂ² (1.5...6 mmÂ²) - cable stiffness: solid without cable end

Tightening torque

Power circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals flat Ã 6 mmPower circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Philips No 2Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals flat Ã 6 mmControl circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Philips No 2

Auxiliary contact composition

1 NO + 1 NC

Auxiliary contacts type

Mechanically linked 1 NO + 1 NC IEC 60947-5-1Mirror contact 1 NC IEC 60947-4-1

Signalling circuit frequency

25...400 Hz

Minimum switching voltage

17 V for signalling circuit

Minimum switching current

5 mA for signalling circuit

Insulation resistance

> 10 MOhm for signalling circuit

Non-overlap time

1.5 ms on de-energisation between NC and NO contact1.5 ms on energisation between NC and NO contact

Mounting Support

RailPlate

Standards

CSA C22.2 No 14EN 60947-4-1EN 60947-5-1IEC 60947-4-1IEC 60947-5-1UL 508

Product Certifications

DNVCSAGLULGOSTLROS (Lloyds register of shipping)CCCBVRINA

IP degree of protection

IP20 front face IEC 60529

Protective treatment

THIEC 60068-2-30

Climatic withstand

IACS E10 exposure to damp heat IEC 60947-1 Annex Q category D exposure to damp heat

Permissible ambient air temperature around the device

-40...140 °F (-40...60 °C)140...158 °F (60...70 °C) with derating

Operating altitude

0...9842.52 ft (0...3000 m)

Fire resistance

1562 °F (850 °C) IEC 60695-2-1

Flame retardance

V1 conforming to UL 94

Mechanical robustness

Vibrations contactor open 2 Gn, 5...300 Hz) Vibrations contactor closed 4 Gn, 5...300 Hz) Shocks contactor open 10 Gn for 11 ms) Shocks contactor closed 15 Gn for 11 ms)

Height

3.03 in (77 mm)

Width

1.8 in (45 mm)

Depth

3.7 in (95 mm)

Net Weight

1.08 lb(US) (0.49 kg)