Schneider LC1D32M7: Medium-Power Contactor for Motor Control Applications
Introduction
The Schneider LC1D32M7 is a versatile contactor designed to control and protect medium-power motors in a range of industrial and commercial applications. Part of Schneider Electric’s renowned TeSys D line, the LC1D32M7 combines reliability, compact design, and ease of installation. This model is well-suited for applications that require efficient control of motors up to 15 kW, ensuring smooth and safe operations across various settings.
Key Features of Schneider LC1D32M7
Medium Power Capacity: Supports motor control applications up to 15 kW (at 400 V), ideal for industrial and commercial machinery.
Control Circuit Voltage: Operates with an AC control voltage of 220V, compatible with many control systems.
Compact Design: The contactor’s small footprint saves space in control panels, making it easy to integrate into compact setups.
Durable Construction: Engineered with robust materials to withstand frequent operations and prolonged use in demanding environments.
Auxiliary Contact Configuration: Includes an auxiliary contact (1 Normally Open) for additional control and monitoring functions.
Technical Specifications
Rated Operational Current (Ie): 32 A for AC-3 motor control at 400 V.
Rated Power: Suitable for motors up to 15 kW at 400 V AC.
Control Circuit Voltage: 220V AC.
Number of Poles: 3 poles for three-phase motor applications.
Auxiliary Contacts: Comes with 1 Normally Open (NO) contact for additional functions.
Connection Type: Screw clamp terminals ensure secure and reliable connections.
Electrical Endurance: Designed to support high switching frequencies with excellent electrical endurance.
Applications of Schneider LC1D32M7
Motor Control for Industrial Equipment: Ideal for operating and controlling motors in light to medium-duty machinery in factories and production facilities.
HVAC Systems: Suitable for HVAC applications in commercial buildings, controlling compressors, fans, and other essential components.
Pumps and Compressors: Used in managing medium-sized pumps and compressors, common in water treatment facilities, agriculture, and small industrial plants.
Lighting and Power Distribution: Effective in controlling lighting systems and distribution networks in commercial environments.
Conveyor Belts: Provides precise control of motorized conveyor belts in medium-sized production lines and material handling systems.
Power circuit: <= 690 V AC 25…400 Hz Power circuit: <= 300 V DC
[Ie] rated operational current
32 A (at <60 °C) at <= 440 V AC AC-3 for power circuit 50 A (at <60 °C) at <= 440 V AC AC-1 for power circuit 32 A (at <60 °C) at <= 440 V AC AC-3e for power circuit
[Uc] control circuit voltage
220 V AC 50/60 Hz
Complementary
Motor power kW
7.5 kW at 220…230 V AC 50/60 Hz (AC-3) 15 kW at 380…400 V AC 50/60 Hz (AC-3) 15 kW at 415…440 V AC 50/60 Hz (AC-3) 18.5 kW at 500 V AC 50/60 Hz (AC-3) 18.5 kW at 660…690 V AC 50/60 Hz (AC-3) 7.5 kW at 400 V AC 50/60 Hz (AC-4) 7.5 kW at 220…230 V AC 50/60 Hz (AC-3e) 15 kW at 380…400 V AC 50/60 Hz (AC-3e) 15 kW at 415…440 V AC 50/60 Hz (AC-3e) 18.5 kW at 500 V AC 50/60 Hz (AC-3e) 18.5 kW at 660…690 V AC 50/60 Hz (AC-3e)
Motor power hp
2 hp at 115 V AC 50/60 Hz for 1 phase motors 5 hp at 230/240 V AC 50/60 Hz for 1 phase motors 10 hp at 200/208 V AC 50/60 Hz for 3 phases motors 10 hp at 230/240 V AC 50/60 Hz for 3 phases motors 20 hp at 460/480 V AC 50/60 Hz for 3 phases motors 25 hp at 575/600 V AC 50/60 Hz for 3 phases motors
Compatibility code
LC1D
Pole contact composition
3 NO
Protective cover
With
[Ith] conventional free air thermal current
10 A (at 60 °C) for signalling circuit 50 A (at 60 °C) for power circuit
Irms rated making capacity
140 A AC for signalling circuit conforming to IEC 60947-5-1 250 A DC for signalling circuit conforming to IEC 60947-5-1 550 A at 440 V for power circuit conforming to IEC 60947
Rated breaking capacity
550 A at 440 V for power circuit conforming to IEC 60947
[Icw] rated short-time withstand current
260 A 40 °C – 10 s for power circuit 430 A 40 °C – 1 s for power circuit 60 A 40 °C – 10 min for power circuit 138 A 40 °C – 1 min for power circuit 100 A – 1 s for signalling circuit 120 A – 500 ms for signalling circuit 140 A – 100 ms for signalling circuit
Associated fuse rating
10 A gG for signalling circuit conforming to IEC 60947-5-1 63 A gG at <= 690 V coordination type 1 for power circuit 63 A gG at <= 690 V coordination type 2 for power circuit
Average impedance
2 mOhm – Ith 50 A 50 Hz for power circuit
Power dissipation per pole
2 W AC-3 5 W AC-1 2 W AC-3e
[Ui] rated insulation voltage
Power circuit: 690 V conforming to IEC 60947-4-1 Power circuit: 600 V CSA certified Power circuit: 600 V UL certified Signalling circuit: 690 V conforming to IEC 60947-1 Signalling circuit: 600 V CSA certified Signalling circuit: 600 V UL certified
Overvoltage category
III
Pollution degree
3
[Uimp] rated impulse withstand voltage
6 kV conforming to IEC 60947
Safety reliability level
B10d = 1369863 cycles contactor with nominal load conforming to EN/ISO 13849-1 B10d = 20000000 cycles contactor with mechanical load conforming to EN/ISO 13849-1
Mechanical durability
15 Mcycles
Electrical durability
1.65 Mcycles 32 A AC-3 at Ue <= 440 V 1.4 Mcycles 50 A AC-1 at Ue <= 440 V 1.65 Mcycles 32 A AC-3e at Ue <= 440 V
Control circuit type
AC at 50/60 Hz standard
Coil technology
Without built-in suppressor module
Control circuit voltage limits
0.3…0.6 Uc (-40…70 °C):drop-out AC 50/60 Hz 0.8…1.1 Uc (-40…60 °C):operational AC 50 Hz 0.85…1.1 Uc (-40…60 °C):operational AC 60 Hz 1…1.1 Uc (60…70 °C):operational AC 50/60 Hz
Inrush power in VA
70 VA 60 Hz cos phi 0.75 (at 20 °C) 70 VA 50 Hz cos phi 0.75 (at 20 °C)
Hold-in power consumption in VA
7.5 VA 60 Hz cos phi 0.3 (at 20 °C) 7 VA 50 Hz cos phi 0.3 (at 20 °C)
Heat dissipation
2…3 W at 50/60 Hz
Operating time
12…22 ms closing 4…19 ms opening
Maximum operating rate
3600 cyc/h 60 °C
Connections – terminals
Control circuit: screw clamp terminals 1 1…4 mm² – cable stiffness: flexible without cable end Control circuit: screw clamp terminals 2 1…4 mm² – cable stiffness: flexible without cable end Control circuit: screw clamp terminals 1 1…4 mm² – cable stiffness: flexible with cable end Control circuit: screw clamp terminals 2 1…2.5 mm² – cable stiffness: flexible with cable end Control circuit: screw clamp terminals 1 1…4 mm² – cable stiffness: solid without cable end Control circuit: screw clamp terminals 2 1…4 mm² – cable stiffness: solid without cable end Power circuit: screw clamp terminals 1 2.5…10 mm² – cable stiffness: flexible without cable end Power circuit: screw clamp terminals 2 2.5…10 mm² – cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 1…10 mm² – cable stiffness: flexible with cable end Power circuit: screw clamp terminals 2 1.5…6 mm² – cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 1.5…10 mm² – cable stiffness: solid without cable end Power circuit: screw clamp terminals 2 2.5…10 mm² – cable stiffness: solid without cable end
Tightening torque
Control circuit: 1.7 N.m – on screw clamp terminals – with screwdriver flat Ø 6 mm Control circuit: 1.7 N.m – on screw clamp terminals – with screwdriver Philips No 2 Power circuit: 2.5 N.m – on screw clamp terminals – with screwdriver flat Ø 6 mm Power circuit: 2.5 N.m – on screw clamp terminals – with screwdriver Philips No 2 Control circuit: 1.7 N.m – on screw clamp terminals – with screwdriver pozidriv No 2 Power circuit: 2.5 N.m – on screw clamp terminals – with screwdriver pozidriv No 2
auxiliary contact composition
1 NO + 1 NC
Auxiliary contacts type
Type mechanically linked 1 NO + 1 NC conforming to IEC 60947-5-1 type mirror contact 1 NC conforming to 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 contact 1.5 ms on energisation between NC and NO contact
Mounting support
Plate Rail
Environment
Standards
CSA C22.2 No 14 EN 60947-4-1 EN 60947-5-1 IEC 60947-4-1 IEC 60947-5-1 UL 508 IEC 60335-1
Product certifications
GL BV DNV LROS (Lloyds register of shipping) RINA UL CCC CSA GOST UKCA CB
IP degree of protection
IP20 front face conforming to IEC 60529
Protective treatment
TH conforming to IEC 60068-2-30
Climatic withstand
Conforming to IACS E10 exposure to damp heat conforming to IEC 60947-1 Annex Q category D exposure to damp heat
Permissible ambient air temperature around the device
-40…60 °C 60…70 °C with derating
Operating altitude
0…3000 m
Fire resistance
850 °C conforming to 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)
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