© 2016 Littelfuse Protection Relays & Controls
www.littelfuse.com/
Rev: 1-A-062716
Protection Relays
Current Monitoring Relays and Transducers
www.littelfuse.com/lcs-lpm
LCS10T12 / LPM SERIES
Description
The LCS10T12 connected to the LPM12 or LPMG12 indicator
is a low cost, easy to use, go/no-go indication system for the
remote monitoring of current flow. The LCS10T12 is installed
on an adequately insulated wire of the monitored load. Its 12in.
(30.4cm) leads are connected to the LPM12 or LPMG12 panel
mount indicator directly or via customer supplied wires up to 500
feet (152.4m) long.
Operation
When the monitored current is 5A turns, the panel mount LPM
indicator will glow. The LCS10T12 is designed to maximize the
light output of the panel mount indicator. It can be used to
monitor current flow of less than 5A by passing the monitored
conductor 2 or more times through the sensor.
CAUTION: The LCS10T12 must be connected to the LPM12
or LPMG12 before current flows to prevent damage or a shock
hazard. Monitored wires must be properly insulated.
Panel mount indicator designed to match the output of the
LCS10T12. The LPM12 and LPMG12 come with 12 in. (30.4 cm)
wires and a one piece mounting clip. Both devices install quickly
in a 0.25 in. (6.35 mm) hole in panels from 0.031 - 0.062 in.
(0.79 - 1.6 mm) thick.
Features
Low cost go/no go indication
May be connected to wires up to 500 feet (152.4 m) long
Remote monitoring of currents up to 50A
Green or red LED indicator available
Specifications
Monitored Current
Current Range 2 - 50A AC
Wire Passes Min. Current Max. Current Max. Inrush Max. Wire Dia.
1 5A 50A 120A 0.355 in. (9.0 mm)
2 2.5A 25A 60A 0.187 in. (4.7 mm)
3 1.7A 16.6A 40A 0.15 in. (3.8 mm)
4 1.3A 12.5A 30A 0.125 in. (3.2 mm)
5 5/X 50/X 120/X
Maximum Current 50A turns continuous
AC Line Frequency 50/60Hz
DC Resistance of
Current Limiter 65 Ω
Mechanical
Sensor Hole 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm2)
THHN wire
Termination 12 in. (30.4 cm) wire leads
Environmental
Operating/Storage
Temperature -40° to 60°C/-40° to 85°C
Weight LCS: ≅ 0.8 oz (23 g)
LPM: ≅ 0.2 oz (6 g)
Wiring Diagram
Current Indicators
Wire Length: 500 ft.
(152.4m) max.
(Customer Supplied)
CAUTION: The LCS10T12 must
be connected to the LPM12 or
LPMG12 before current flows
to prevent damage or shock
hazard. Monitored wires must
be properly insulated.
Ordering Information
MODEL DESCRIPTION
LCS10T12 AC Current Sensor
LPM12 Red LED Indicator
LPMG12 Green LED Indicator
If you don’t find the part you need, call us for a custom product 800-843-8848
