SchneiderContactors and Protection Relays

LC1D50A3UD

Name: LC1D50A3UD
Brand: Schneider
SKU: LC1D50A3UD

The LC1D50A3UD TeSys Deca contactor is a reliable and efficient 3-pole AC-3 rated contactor with a 50 A current rating, suitable for motor control up to 440 V.

Product ModelLC1D50A3UD

Product ID32335

Stock on Request

Last updated: 8/29/2026

Quantity

Key Features

1
FeatureHigh reliability and efficiency in motor control applications.
2
FeatureSuitable for applications up to 440 V with a 50 A current rating.
3
FeatureFeatures a 250 V DC standard coil for versatility.
4
FeatureIncludes 1 NO and 1 NC auxiliary contacts for additional signaling.
5
FeatureMeets high standards with UL/CSA insulation voltage of 690 V.

Technical Specifications

Detailed engineering parameters based on manufacturer documentation

Specifications may be subject to change without notice

Parameter

Value

Parameter

Value

Range

TeSysTeSys Deca

Range of Product

TeSys Deca

Product or Component Type

Contactor

Device short name

LC1D

Contactor application

Resistive loadMotor control

Utilisation category

AC-1AC-4AC-3

[Ue] rated operational voltage

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

[Ie] rated operational current

50 A (at <140 °F (60 °C)) at <= 440 V AC AC-3 for power circuit80 A (at <140 °F (60 °C)) at <= 440 V AC AC-1 for power circuit

[Uc] control circuit voltage

250 V DC

Motor power kW

15 kW at 220...230 V AC 50/60 Hz (AC-3)22 kW at 380...400 V AC 50/60 Hz (AC-3)30 kW at 500 V AC 50/60 Hz (AC-3)33 kW at 660...690 V AC 50/60 Hz (AC-3)25 kW at 415 V AC 50/60 Hz (AC-3)30 kW at 440 V AC 50/60 Hz (AC-3)11 kW at 400 V AC 50/60 Hz (AC-4)

Maximum Horse Power Rating

3 hp at 115 V AC 50/60 Hz for 1 phase motors7.5 hp at 230/240 V AC 50/60 Hz for 1 phase motors15 hp at 200/208 V AC 50/60 Hz for 3 phase motors15 hp at 230/240 V AC 50/60 Hz for 3 phase motors40 hp at 460/480 V AC 50/60 Hz for 3 phase motors40 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 circuit80 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 60947-5-1900 A at 440 V for power circuit conforming to IEC 60947

Rated breaking capacity

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

[Icw] rated short-time withstand current

400 A 104 °F (40 °C) - 10 s for power circuit810 A 104 °F (40 °C) - 1 s for power circuit84 A 104 °F (40 °C) - 10 min for power circuit208 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 60947-5-1100 A gG at <= 690 V coordination type 1 for power circuit100 A gG at <= 690 V coordination type 2 for power circuit

Average impedance

1.5 mOhm - Ith 80 A 50 Hz for power circuit

Power dissipation per pole

3.7 W AC-39.6 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

10 Mcycles

Electrical durability

1.45 Mcycles 50 A AC-3 <= 440 V0.5 Mcycles 80 A AC-1 <= 440 V

Control circuit type

DC standard

Coil technology

Built-in bidirectional peak limiting diode suppressor

Control circuit voltage limits

0.1...0.3 Uc -40...158 °F (-40...70 °C) drop-out DC0.75...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

19 W 68 °F (20 °C))

Hold-in power consumption in W

7.4 W 68 °F (20 °C)

Operating time

50 Â±15 % ms closing16...24 ms opening

Time constant

34 ms

Maximum operating rate

3600 cyc/h at 60 °C

Connections - terminals

Power circuit: EverLink BTR screw connectors 1 0.002...0.05 inÂ² (1...35 mmÂ²) - cable stiffness: flexible without cable endPower circuit: EverLink BTR screw connectors 2 0.002...0.04 inÂ² (1...25 mmÂ²) - cable stiffness: flexible without cable endPower circuit: EverLink BTR screw connectors 1 0.002...0.05 inÂ² (1...35 mmÂ²) - cable stiffness: flexible with cable endPower circuit: EverLink BTR screw connectors 2 0.002...0.04 inÂ² (1...25 mmÂ²) - cable stiffness: flexible with cable endPower circuit: EverLink BTR screw connectors 1 0.002...0.05 inÂ² (1...35 mmÂ²) - cable stiffness: solid without cable endPower circuit: EverLink BTR screw connectors 2 0.002...0.04 inÂ² (1...25 mmÂ²) - cable stiffness: solid without cable endControl 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 end

Tightening torque

Power circuit 70.8 lbf.in (8 N.m) EverLink BTR screw connectors 0.04...0.05 inÂ² (25...35 mmÂ²) hexagonal 0.2 in (4 mm)Power circuit 44.3 lbf.in (5 N.m) EverLink BTR screw connectors 0.002...0.04 inÂ² (1...25 mmÂ²) hexagonal 0.2 in (4 mm)Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals pozidriv No 2Power circuit 22.1 lbf.in (2.5 N.m) screw clamp terminals pozidriv 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

EN 60947-4-1EN 60947-5-1IEC 60947-4-1IEC 60947-5-1CSA C22.2 No 14UL 60947-4-1IEC 60335-2-40:Annex JJUL 60335-2-40:Annex JJIEC 60335-1:Clause 30.2

Product Certifications

CCCULCB SchemeCSACEUKCAMarineEAC

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 10 Gn for 11 ms)

Height

4.8 in (122 mm)

Width

2.2 in (55 mm)

Depth

4.7 in (120 mm)

Net Weight

2.05 lb(US) (0.93 kg)