SchneiderContactors and Protection Relays

LC1DT256Q7

Name: LC1DT256Q7
Brand: Schneider
SKU: LC1DT256Q7

The LC1DT256Q7 TeSys Deca contactor is a high-performance, 4-pole, 4-NO contactor suitable for industrial and HVAC applications.

Product ModelLC1DT256Q7

Product ID32929

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh-performance 4-pole, 4-NO contactor for industrial and HVAC applications.
2
FeatureEfficient operation with a power circuit rating of 600 V CSA certified and 600 V UL certified.
3
FeatureReliable signalling circuit with a rating of 690 V conforming to IEC 60947-1.
4
FeatureCompact design suitable for DIN-rail mounting or screw fixing.
5
FeatureMulti-standard certified for global compatibility (IEC, UL, CSA, CCC, EAC).

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-1AC-3AC-3eAC-4

[Ue] rated operational voltage

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

[Ie] rated operational current

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

[Uc] control circuit voltage

380 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 circuit25 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 60947-5-1250 A at 440 V for power circuit conforming to IEC 60947

Rated breaking capacity

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

[Icw] rated short-time withstand current

30 A 104 °F (40 °C) - 10 min for power circuit61 A 104 °F (40 °C) - 1 min for power circuit105 A 104 °F (40 °C) - 10 s for power circuit210 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 60947-5-140 A gG at <= 690 V coordination type 1 for power circuit25 A gG at <= 690 V coordination type 2 for power circuit

Average impedance

2.5 mOhm - Ith 25 A 50 Hz for power circuit

Power dissipation per pole

1.56 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

0.8 Mcycles 25 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 140 °F (60 °C)

Connections - terminals

Control circuit: lugs-ring terminals - external diameter: 0.3 in (8 mm)Power circuit: lugs-ring terminals - external diameter: 0.3 in (8 mm)

Tightening torque

Control circuit 15.05 lbf.in (1.7 N.m) lugs-ring terminals flat Ã 6 mm M3.5Control circuit 15.05 lbf.in (1.7 N.m) lugs-ring terminals Philips No 2 M3.5Power circuit 15.05 lbf.in (1.7 N.m) lugs-ring terminals flat Ã 6 mm M3.5Power circuit 15.05 lbf.in (1.7 N.m) lugs-ring terminals Philips No 2 M3.5

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

CCCLROS (Lloyds register of shipping)GOSTCSABVGLRINAULDNV

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

-76...176 °F (-60...80 °C) storage-40...140 °F (-40...60 °C) operation140...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 10 Gn for 11 ms)

Height

3.3 in (85 mm)

Width

1.8 in (45 mm)

Depth

3.6 in (92 mm)

Net Weight

0.805 lb(US) (0.365 kg)