LC1D18R7 SQUARE D, LC1D18R7 Datasheet - Page 26

• 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.
Contactor Selection for Utilization Categories AC-2 and AC-4
26
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2001-2004 Schneider Electric All Rights Reserved
Use in Categories AC-2 or AC-4 (Ve
NOTE: The dotted lines relate to LC1K12 and LP1K12 contactors only.
Example: Asynchronous motor with P = 5.5 kW – Ve = 400 V – Ie = 11 A
Use in Category AC-4 (440 Vac < Ve
0.08
0.06
0.05
0.04
0.03
0.02
0.01
0.08
0.06
0.05
0.04
0.03
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
1
5
5
6 7
6 7
Asynchronous motor with P = 5.5 kW – Ve = 415 V – Ie = 11 A
200,000 operating cycles required.
The above selection curves show the contactor rating needed: LC1D25 or LP1D25.
8 9 10
8 9 10
20
20
30
30 36 40
440 Vac)
40
690 V)
50
50 54
70
72
80
90
105
108
150 170 210 250 300
150 192 240 300
400 500
lc = 6 x le = 66 A; or
lc = 6 x le = 66 A.
390 480
Current broken in A
540
Current broken in A
570
640 800 1000
630
828 1000
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