LTM for switchboards

LITOL Line Surge Protector has been developed to effectively protect all types of electronic equipment and machinery from induced surge voltages from lightning and from electrical noise.
The LTM series can be installed in control boxes and in switch boards.

Features

•1 unit can protect between lines and between ground
•Compact and easy to mount
•Durable against multiple surges, long life
•Compatible with rating of 125VAC/250VAC/400VAC
•Responds quickly to lightning surges, protects devices
•Satisfy with ClassII surge test condition.
(JIS C5381-11)

Applications

•NC tooling, arc discharge machining, robots, and others.

Wiring method

(Wiring method)
There are name plates of R,S(N), T,E in power line input of machine control panel. Please connect corresponding parts of “LTM-250(LTM-250)” to the above, like R-R, S-S(N-N) and T-T, E-E.

Dimensions

Characteristics

Part number
Maximum continuous
operating voltage
Uc
Nominal
dischargecurrent
In
Maximum
discharge current
max
Voltage
protection level
Up 1)
Operating indicator
2)
LTM-125RF
AC150V
(One-phase 3 wire)
10kA
(8/20μs)
20kA
(8/20μs)
Line to line 1.2kV With indicator
Line to GND 1.5kV
LTM-250RF
AC275V
(Three-phase 3 wire)
Line to line 1.5kV
Line to GND 1.5kV
LTM-400RF
AC510V
(Three-phase 4 wire)
Line to line 2.5kV
Line to GND 2.5kV
LTM-125R AC150V
(One-phase 3 wire)
Line to line 1.2kV None
Line to GND 1.5kV
LTM-250R AC275V
(Three-phase 3 wire)
Line to line 1.5kV
Line to GND 1.5kV
LTM-400R AC510V
(Three-phase 4 wire)
Line to line 2.5kV
Line to GND 2.5kV
LTM-125U AC125V
(One-phase 3 wire)
3kA
(8/20μs)
5kA
(8/20μs)
Line to line 1.2kV
Line to GND 1.5kV
LTM-250U AC275V
(Three-phase 3 wire)
Line to line 1.5kV
Line to GND 1.5kV
LTM-400U AC510V
(Three-phase 3 wire)
Line to line 2.5kV
Line to GND 2.5kV

1) : Nominal discharge current In : 8/20μs
2) : The LED isn't replace the immediately.

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