LC1D18P7 SQUARE D, LC1D18P7 Datasheet - Page 218

• 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

LR9F Solid State Overload Relays - Characteristics
218
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2001-2004 Schneider Electric All Rights Reserved
LR9F Solid State Overload Relays - Characteristics
Introduction
The LR9F solid state overload relay provides the accurate, repeatable protection of a solid state device,
while still maintaining the ease of installation of a traditional overload relay.
The LR9F provides protection against:
• Motor Overload
• Failure or Phase unbalance of 30% or greater
• Prolonged starting times
• Locked rotor conditions
The LR9F overload relays have 8 current ranges, spanning 30 amps up to 630 amps. They are available
in Class 10 trip or Class 20 trip models. The device is manually reset via a clearly labeled button on the
front face. A separate attachment is available for remote reset or test tripping of the relay. All units
incorporate both a normally open and normally closed contact for control circuit wiring.
The LR9F is designed to directly mount on the load side of a LC1F contactor, minimizing space and wiring
time. Lugs for the LR9F are ordered separately (see page 220 for selection). For LR9F relays up to 185 amps,
an interposing touch-safe terminal block may be ordered in place of lugs, making power wiring even easier.
1
7
LR9F Tripping Curve
Average operating times depending on multiples of the current setting
Class 10
1 Cold state curve
2 Hot state curve
1000
100
10
1
0
Tripping time in seconds
105
1
1,12 2
90
150
125
3
Ir(A)
ELECTRONIC MOTOR PROTECTION
4
1
2
5
6
X times current setting (Ir)
7
LR9 F5369
8
9
10
3
98
11
TEST
NO
12
TRIPPED
97
STOP
95
NC
RESET
Class 20
1000
100
10
96
1
0
Tripping time in seconds
1
1,12
6
5
4
2
2
1. Trip Current Adjustment Dial
2. Stop Button
3. Test Button
4. Reset Button
5. Trip Indicator
6. Clip-on Legend
7. Transparent Cover with Sealing Provisions
3
4
X times current setting (Ir)
5
1
2
6
7
8
9
08/04