
Class B+C Power Surge Protector LP-40B+C
Model LP-40B+C
LP-40B+C power surge protector for building low-voltage main distribution boxes: plug-in modules for class B and C lightning overvoltage, 40 kA nominal and 80 kA maximum discharge current, status lights and optional remote signalling.
- Category
- Surge Protection Devices
Overview
About the Class B+C Power Surge Protector LP-40B+C.
The LP-40B+C power surge protector is a plug-in surge protective device for equipotential bonding in building low-voltage main distribution boxes. It protects the installation against overvoltage arising from lightning strikes at power class B and C. It handles a nominal discharge current of 40 kA and a maximum of 80 kA (8/20 µs). Built-in temperature control and circuit-breaking technology give high safety performance, and an indicator shows green when the module is normal and red when it is broken and needs replacing.
Features
- Plug-and-play modules that can be replaced live, with no need to consider the load current
- Built-in temperature control and circuit breaking technology for safe operation
- Green light for normal, red light for a failed module that needs replacing
- Lightning protection back-up: half of the protection remains available when either red light is on
- Optional telesignalisation interface for remote monitoring
- Combination assemblies such as 1P+N, 2P, 3P+N and 4P for different supply networks
- Response time below 25 ns
- Flame-retardant reinforced nylon housing (UL94 V-0)
Applications
- Building low-voltage main distribution boxes
- Power class B and C surge protection
- Equipotential bonding of low-voltage electrical networks
Models
- Three voltage ratings by maximum continuous operating voltage: 275 V, 385 V and 690 V AC
- Voltage protection level below 2.2 kV, 2.4 kV and 3.0 kV respectively
- Assemblies of 1P+N, 2P, 3P+N or 4P modules; wiring diagrams are given for 3P and 4P
LKS supplies the LP-40B+C power surge protector in Malaysia, with installation and after-sales support. Contact our engineers for selection and a quotation.
Specifications
| Model | LP-40B+C |
|---|---|
| Protection class | Power class B & C |
| Maximum continuous operating voltage Uc | 275 / 385 / 690 V AC |
| Voltage protection level Up | < 2.2 / < 2.4 / < 3.0 kV |
| Voltage limiting Ures (at 5 kA) | < 1.0 / < 1.2 / < 2.0 kV |
| Nominal discharge current (8/20 µs) | 40 kA |
| Maximum discharge current (8/20 µs) | 80 kA |
| Impulse discharge current Iimp (10/350) | 1.5 kA |
| Response time | < 25 ns |
| Housing material | Flame-retardant reinforced nylon (UL94 V-0) |
| Recommended grounding conductor | 16 mm² multi-strand flexible wire |
| Maximum back-up protection fuse | 125 AgL / 63 A |
| Configurations | 1P+N, 2P, 3P+N, 4P and others |
| Remote signalling | Optional telesignalisation monitoring interface |
Lifecycle support
Installed, calibrated and maintained.
With more than two decades in valves and instrumentation across a diverse range of industries, we keep instruments accurate and valves healthy, because valve health management is vital for plant safety.
- Installation & commissioning
- Calibration & testing
- Maintenance & overhaul
- Dismantling & replacement
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