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Schneider Electric LC2K12004B7

Schneider LC2K12004B7 TeSys K Reversing Contactor, 4-Pole, 20 A, 24 V AC

MPNLC2K12004B7
Obsolete

Schneider LC2K12004B7 Electrical Contactors — now discontinued. Supplied from remaining channel stock; full specifications, lifecycle and same-series options are below.

$71.12Ref. price · indicative, final on quote
Schneider Electric LC2K12004B7 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

LC2K12004B7 key specifications
ParameterValue
Interlocking typeMechanical
Control circuit typeAC 50/60 Hz
Product or component typeChangeover contactor
Coil voltage24 V AC 50/60 Hz
VoltagePower circuit 600 V UL 508 Power circuit 690 V IEC 60947-4-1 Power circuit 600 V CSA C22.2 No 14
Control circuit voltage limitsOperational: 0.8...1.15 Uc (at Drop-out: 0.2...0.75 Uc (at <122 °F (50 °C))
[Ue] rated operational voltagePower circuit 690 V AC 50/60 Hz
[Uimp] rated impulse withstand voltage8 kV
[Icw] rated short-time withstand current115 A 122 °F (50 °C) - 1 s for power circuit 105 A 122 °F (50 °C) - 5 s for power circuit 100 A 122 °F (50 °C) - 10 s for power circuit 75 A 122 °F (50 °C) - 30 s for power circuit 55 A 122 °F (50 °C) - 1 min for power circuit 50 A 122 °F (50 °C) - 3 min for power circuit 25 A 122 °F (50 °C) - >= 15 min for power circuit
Breaking capacity110 A at 440 V conforming to IEC 60947 80 A at 500 V conforming to IEC 60947 70 A at 660...690 V conforming to IEC 60947
[Ie] rated operational current20 A (at 16 A (at <158 °F (70 °C)) at 690 V AC AC-1 for power circuit
[Ith] conventional free air thermal current20 A (at 122 °F (50 °C)) for power circuit

All specifications

LC2K12004B7 additional specifications
ParameterValue
Inrush power in30 VA (at 68 °F (20 °C))
Power pole contact composition4 NO
Hold-in power consumption in4.5 VA (at 68 °F (20 °C))
Poles description4P
Utilisation categoryAC-1
IP degree of protectionIP20 VDE 0106
Mounting supportRail Plate
Connections - terminalsscrew clamp terminals 1 0.002...0.006 in² (1.5...4 mm²)solid screw clamp terminals 1 0.001...0.006 in² (0.75...4 mm²)flexible without cable end screw clamp terminals 1 0.0005...0.004 in² (0.34...2.5 mm²)flexible with cable end screw clamp terminals 2 0.002...0.006 in² (1.5...4 mm²)solid screw clamp terminals 2 0.001...0.006 in² (0.75...4 mm²)flexible without cable end screw clamp terminals 2 0.0005...0.002 in² (0.34...1.5 mm²)flexible with cable end
Operating altitude6561.68 ft (2000 m) without derating
Depth2.2 in (57 mm)
Width3.5 in (90 mm)
Height2.3 in (58 mm)
Electrical durability0.3 Mcycles 20 A AC-1 <= 440 V
Mechanical durability5 Mcycles
StandardsEN/IEC 60947-4-1 GB/T 14048.4 UL 60947-4-1 CSA C22.2 No 60947-4-1 JIS C8201-4-1
RangeTeSys
Category22327-CTR,K-LINE,AC,OPEN,REV
Operating time10...20 ms coil energisation and NO closing 10...20 ms coil de-energisation and NO opening
Flame retardanceV1 conforming to UL 94 Requirement 2 conforming to NF F 16-101 Requirement 2 conforming to NF F 16-102
Heat dissipation1.3 W
Average impedance3 mOhm - Ith 20 A 50 Hz for power circuit
Device short nameLC2K
Tightening torque7.08...11.5 lbf.in (0.8...1.3 N.m) screw clamp terminals Philips No 2 7.08...11.5 lbf.in (0.8...1.3 N.m) screw clamp terminals flat Ø 6 mm
Device applicationControl
Device presentationPreassembled with reversing power busbar
Overvoltage categoryIII
Protective treatmentTC IEC 60068 TC DIN 50016
Contactor applicationResistive load
Mechanical robustnessShocks contactor closed, on X axis10 Gn for 11 ms IEC 60068-2-27 Shocks contactor closed, on Y axis15 Gn for 11 ms IEC 60068-2-27 Shocks contactor closed, on Z axis15 Gn for 11 ms IEC 60068-2-27 Shocks contactor opened, on X axis6 Gn for 11 ms IEC 60068-2-27 Shocks contactor opened, on Y axis10 Gn for 11 ms IEC 60068-2-27 Shocks contactor opened, on Z axis10 Gn for 11 ms IEC 60068-2-27 Vibrations contactor closed4 Gn, 5...300 Hz IEC 60068-2-6 Vibrations contactor opened2 Gn, 5...300 Hz IEC 60068-2-6
Associated fuse rating25 A gG at 25 A aM for power circuit
Maximum operating rate3600 cyc/h
Safety reliability levelB10d = 1369863 cycles contactor with nominal load EN/ISO 13849-1 B10d = 20000000 cycles contactor with mechanical load EN/ISO 13849-1
Irms rated making capacity144 A at 690 V AC for power circuit conforming to NF C 63-110 144 A at 690 V AC for power circuit conforming to IEC 60947
Ambient air temperature for storage-58...176 °F (-50...80 °C)
Ambient air temperature for operation-13...122 °F (-25...50 °C)

Product details

Overview

The LC2K12004B7 is a Schneider TeSys K reversing contactor, 4-pole, rated for a switching current of 20 A in AC-1 utilization category and a supply voltage of 690 V.

This reversing contactor mechanically interlock two contactors to control motor direction without a separate reversing starter. The 4-pole configuration switches three phases and the neutral, common in North American and some European motor circuits. The 20 A AC-1 rating covers resistive and lightly inductive loads; for motor starting (AC-3), derate per the manufacturer's curve. Breaking capacity reaches 110 A at 440 V and 70 A at 690 V per IEC 60947, giving headroom for fault clearing. The coil pulls in at 24 V AC 50/60 Hz with a typical operating time of 10 ms and a maximum operating rate of 3600 cycles per hour. Electrical life is 0.3 million cycles at 20 A AC-1, 440 V.

Applications

Reversing contactors of this class are used in motor control centers and standalone panels for conveyors, hoists, pumps, and fans that require forward/reverse operation. The preassembled reversing busbar reduces wiring time and panel space. Typical environments include industrial machinery, HVAC, and material handling.

The LC2K12004B7 belongs to the TeSys K range, Schneider's compact contactor family for control and light power applications up to 20 A. It is specified by panel builders and OEMs who need a space-saving reversing contactor with mechanical interlock and global certifications (IEC, UL, CSA). The preassembled busbar distinguishes it from field-assembled reversing kits.

The LC2K12004B7 is an active production part within the TeSys K range. It carries certifications per EN/IEC 60947-4-1, UL 60947-4-1, CSA C22.2 No 60947-4-1, and JIS C8201-4-1. The unit is California Proposition 65 compliant and has a flammability rating of V1 per UL 94. Standard warranty is 18 months.

MPN
LC2K12004B7