LTP for Switchboards
The LTP Series is a surge protection device (SPD) for control panels and distribution boards. It has a long lifespan, is resistant to repeated surges, and operates quickly against surges to protect electrical equipment.
Useful informationFeatures
- 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) - Operating temperature limit : -25 ~ 85°C
- Storage Temperature Range : ―
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 “LTP-250RF, LTP-125RF, LTP- 400RF” 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) |
|
|---|---|---|---|---|---|---|
| LTP-125RF | AC150V (Single-phase 3 wires) |
10kA (8/20μs) |
20kA (8/20μs) |
Line to line | 1.2kV | YES |
| Line to GND | 1.5kV | |||||
| LTP-250RF | AC275V (Three-phase 3 wires) |
Line to line | 1.5kV | |||
| Line to GND | 1.5kV | |||||
| LTP-400RF | AC510V (Three-phase 4 wires) |
Line to line | 2.5kV | |||
| Line to GND | 2.5kV | |||||
- Nominal discharge current In : 8/20μs
- The LED isn't replace the immediately.
Useful information