LC1D18R7 SQUARE D, LC1D18R7 Datasheet - Page 27

• Manufacturer Part Number: LC1D18R7
• Description: IEC Contactor
• Manufacturer: SQUARE D

Specifications of LC1D18R7

• No. Of Poles: 3
• Contact Configuration: 3PST-NO
• Relay Mounting: DIN Rail
• Coil Voltage Vac Nom: 440V
• Relay Terminals: Screw Clamp
• Width: 45mm
• Coil Resistance: 2.24kohm
• Nom Operating Power: 10kW
• External Width: 45mm
• Operating Voltage: 600VAC
• Switching Power Ac1: 3hp
• Switching Power Ac3: 15hp
• Switching Current Ac1: 32A
• Switching Current Ac3: 18A
• Load Current Inductive: 18A
• Load Current Resistive: 32A
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Control of 3-phase
asynchronous squirrel
cage motors with
breaking while motor
stalled.
The current broken
(Ic) in category AC-4
is equal to 6 times Ie,
where le is the
operational current
of the motor.
Use motor-locked
rotor current (6 times
full-load current) on
horizontal axis for
selection purposes.
Control of 3-phase
asynchronous squirrel
cage (AC-4) or slip-
ring (AC-2) motors
with breaking while
motor stalled.
The current broken
(Ic) in category AC-4
is equal to 6 times Ie,
where le is the
operational current
of the motor.
Use motor-locked
rotor current (6 times
full-load current) on
horizontal axis for
selection purposes.
01/04
Use in Categories AC-2 or AC-4 (Ve
Example: Asynchronous motor with P = 90 kW – Ve = 380 V – Ie = 170 A
Use in Category AC-4 (440 Vac < Ve
0.08
0.06
0.04
0.02
0.01
0.08
0.06
0.04
0.02
0.01
0.8
0.6
0.4
0.2
0.1
0.8
0.6
0.4
0.2
0.1
1
100
1
100
Asynchronous motor with P = 90 kW – Ve = 415 V – Ie = 165 A
60,000 operating cycles required.
The above selection curves show the contactor rating needed: LC1F265.
200
200
Contactor Selection for Utilization Categories AC-2 and AC-4
400
400
600
600
440 Vac)
690 V)
800 1000
800 1000
©
2000
2001-2004 Schneider Electric All Rights Reserved
2000
Current broken in A
Current broken in A
3800
4000
5000
lc = 6 x le = 1020 A; or
lc = 6 x le = 990 A.
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