SchneiderContactors and Protection Relays

LC1DT403U7

Name: LC1DT403U7
Brand: Schneider
SKU: LC1DT403U7

The LC1DT403U7 TeSys Deca contactor is designed for industrial and HVAC applications, offering high performance and reliability.

Product ModelLC1DT403U7

Product ID32781

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh-performance contactor for industrial and HVAC applications
2
FeatureCompliant with IEC 60947-5-1 standards for signalling circuits
3
FeatureSuitable for 240V AC coils with 50/60Hz operation
4
FeatureEasier installation with multi-standard screws
5
FeatureDesigned for extended product lifetimes and recyclability

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 load

Utilisation category

AC-1

[Ue] rated operational voltage

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

[Ie] rated operational current

40 A (at <140 °F (60 °C)) at <= 440 V AC AC-1 for power circuit

[Uc] control circuit voltage

240 V AC 50/60 Hz

Compatibility code

LC1D

Pole contact composition

4 NO

Protective cover

With

[Ith] conventional free air thermal current

10 A (at 140 °F (60 °C)) for signalling circuit40 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 60947-5-1450 A at 440 V for power circuit conforming to IEC 60947

Rated breaking capacity

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

[Icw] rated short-time withstand current

50 A 104 °F (40 °C) - 10 min for power circuit120 A 104 °F (40 °C) - 1 min for power circuit240 A 104 °F (40 °C) - 10 s for power circuit380 A 104 °F (40 °C) - 1 s 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 60947-5-163 A gG at <= 690 V coordination type 1 for power circuit40 A gG at <= 690 V coordination type 2 for power circuit

Average impedance

2 mOhm - Ith 40 A 50 Hz for power circuit

Power dissipation per pole

3.2 W AC-1

[Ui] rated insulation voltage

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

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

15 Mcycles

Electrical durability

1.4 Mcycles 40 A AC-1 <= 440 V

Control circuit type

AC 50/60 Hz

Coil technology

Without built-in suppressor module

Control circuit voltage limits

0.3...0.6 Uc -40...158 °F (-40...70 °C) drop-out AC 50/60 Hz0.8...1.1 Uc -40...140 °F (-40...60 °C) operational AC 50 Hz0.85...1.1 Uc -40...140 °F (-40...60 °C) operational AC 60 Hz1...1.1 Uc 140...158 °F (60...70 °C) operational AC 50/60 Hz

Inrush power in VA

70 VA 60 Hz cos phi 0.75 (at 68 °F (20 °C))70 VA 50 Hz cos phi 0.75 (at 68 °F (20 °C))

Hold-in power consumption in VA

7.5 VA 60 Hz cos phi 0.3 (at 68 °F (20 °C))7 VA 50 Hz cos phi 0.3 (at 68 °F (20 °C))

Heat dissipation

2...3 W at 50/60 Hz

Operating time

4...19 ms opening12...22 ms closing

Maximum operating rate

3600 cyc/h at 60 °C

Connections - terminals

Control circuit: spring terminals 1 0.004 inÂ² (2.5 mmÂ²) - cable stiffness: flexible without cable endControl circuit: spring terminals 2 0.004 inÂ² (2.5 mmÂ²) - cable stiffness: flexible without cable endPower circuit: spring terminals 1 0.02 inÂ² (10 mmÂ²) - cable stiffness: flexible without cable end

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

GOSTRINABVCCCLROS (Lloyds register of shipping)GLDNVCSAUL

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 closed 15 Gn for 11 ms) Shocks contactor open 8 Gn for 11 ms)

Height

4.1 in (105 mm)

Width

1.8 in (45 mm)

Depth

3.9 in (99 mm)

Net Weight

0.937 lb(US) (0.425 kg)