LC1D18P7 SQUARE D, LC1D18P7 Datasheet - Page 229

• Manufacturer Part Number: LC1D18P7
• Description: IEC Contactor
• Manufacturer: SQUARE D

Specifications of LC1D18P7

• No. Of Poles: 3
• Contact Configuration: 3PST-NO
• Relay Mounting: DIN Rail
• Width: 45mm
• Relay Terminals: Screw Clamp
• 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

01/04
For Switching the Primaries of 3-Phase Transformers
International applications only (not UL Listed or CSA certified for transformer switching)
Operating Conditions
Maximum ambient temperature: 55 °C (131 °F)
Maximum operational voltage: 1000 V, 50 to 60 Hz
When a transformer is switched on, there is generally an initial current surge which reaches its peak
value almost instantaneously and then decreases in a largely exponential manner to quickly reach its
steady state value.
The value of this current depends on:
• The characteristics of the magnetic circuit and of the windings (cross sectional area of the core, rated
• the performance of the magnetic laminations used (residual induction and saturation inductance).
• the magnetic state of the circuit and the instantaneous value of the AC mains voltage at the moment
The inrush current at the moment of switch-on can reach 20 to 40 times the rated current for the various
kVA power ratings in the tables below. This value is independent of the “no-load” or “on-load” state of
the transformer (the tables are based on 30 In).
The peak magnetizing current of the transformer must be lower than the values given in the tables below.
Contactor Selection
Maximum Operating Rate: 120 operating cycles /hour
Contactor size
Maximum permissible
closing current peak
Maximum operational
power in kVA c
Contactor size
Maximum permissible
closing current peak
Maximum operational
power in kVA c
c
inductance, number of turns, size of the windings).
of switch-on.
Maximum operational power corresponding to a current peak at switch-on of 30 In.
A
220 to 230 V
380 to 400 V
415 to 440 V
500 V
660 V
1000 V
A
220 to 230 V
380 to 400 V
415 to 440 V
500 V
660 V
1000 V
25
50
55
65
80
480
600
CR1F150
1700
100
CR1BL
18 000
230
400
450
700
Magnetic Latching Contactors – Characteristics
CR1F185
2800
40
75
80
95
120
150
CR1BM
18 000
230
400
450
480
600
700
CR1F265
3500
50
90
100
110
140
200
CR1BP
24 000
300
530
560
600
800
1000
©
2001-2004 Schneider Electric All Rights Reserved
CR1F400
5500
75
130
140
170
200
250
CR1BR
30 000
380
660
700
750
950
1200
CR1F500
6800
100
170
190
225
270
375
CR1F630
9000
140
225
250
280
315
470
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