BHPM Type Surge Protective Device BHPM Type | Shihlin Electric
Explore Shihlin Electric products for low-voltage protection and automation—circuit breakers, magnetic switches/contactors, power distribution, inverters, AC drives, servo, HMI and PLC.
Surge Protective Device BHPM Type
BHPM Type
Breaking Capacity
BHPM Series SPD
BHPM series surge protective devices are designed for AC 220V / 380V, 50 / 60Hz power systems. The series features low residual voltage, low leakage current, fast thermal trip response, and a plug-in modular design for efficient installation and replacement.
Product Overview
The BHPM series is a modular surge protection platform covering Class I, Class II, and Class III applications. It is suitable for low-voltage distribution systems requiring reliable surge suppression, easy maintenance, and clear operating status indication.
Key Features
- Suitable for AC220V / 380V, 50 / 60Hz power systems.
- Low residual voltage and low leakage current.
- Thermal trip / fuse function for fast response.
- Plug-in modular design for easy installation and replacement.
- Standard 35mm DIN-rail installation.
- Status window display for maintenance visibility.
- Additional alarm switch can be added.
- Complies with IEC 61643 standard.
Electrical Characteristics
- Inner core uses metal oxide varistor based on zinc oxide.
- Maximum continuous operating voltage Uc: 275VAC, recommended at least 15% above Un.
- Voltage protection level Up is lower than the rated impulse withstand voltage of the protected device.
- Life expectancy up to 10,000 surge events within rated discharge current.
- Operating temperature: -5°C to +40°C.
- Relative humidity: 30% to 99%.
- Operating altitude: below 2000 m.
Technical Specifications
The BHPM series includes Class III, Class II, and Class I models for different surge protection levels and system architectures.
Class III
| Model | Uoc | Uc | Up | Pole | Alarm Switch |
|---|---|---|---|---|---|
| BHPM06M3 | 6kV | 275Vac | 1.0kV | 2P / 3P / 4P | 250VAC / 0.1A, 125VDC / 0.2A, 75VDC / 0.5A |
Class II
| Model | Type | Uc | In | Imax | Up | tA | Pole | Alarm Switch |
|---|---|---|---|---|---|---|---|---|
| BHPM20M2 | MOV / NPE | 275Vac / 255Vac | 10kA | 20kA | 1.2kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A |
| BHPM40M2 | MOV / NPE | 275Vac / 255Vac | 20kA | 40kA | 1.3kV / 1.5kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A |
| BHPM65M2 | MOV / NPE | 275Vac / 255Vac | 30kA | 65kA | 1.5kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A |
| BHPM80M2 | MOV / NPE | 275Vac / 255Vac | 40kA | 80kA | 1.7kV / 1.5kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A |
| BHPM100M2 | MOV / NPE | 275Vac / 255Vac | 60kA | 100kA | 2kV / 1.5kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A / - |
Class I
| Model | Type | Uc | In | Iimp | Up | tA | Pole | Alarm Switch |
|---|---|---|---|---|---|---|---|---|
| BHPM25M1 | L-N / N-PE | 275Vac / 255Vac | 25kA | 25kA | 2.5kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | - |
| BHPM50M1 | L-N / N-PE | 275Vac / 255Vac | 50kA | 50kA / 100kA | 2.5kV / 2.2kV | ≤25ns / ≤100ns | 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 | 250V 0.25A / - |
Dimensions & Wiring
The catalog provides standard outline dimensions and typical wiring diagrams for 1P+NPE, 3P, and 3P+NPE configurations.
Dimensions (mm)
- BHPM06M3 / BHPM20M2 / BHPM40M2 / BHPM65M2 / BHPM80M2: width 18 / 36 / 54 / 72 mm by pole configuration, height 90.5 mm, depth 68.5 mm.
- BHPM25M1 / BHPM50M1 / BHPM100M2: width 36 / 72 / 108 / 144 mm by pole configuration, height 90 mm, depth 66 mm.
- Standard modular profile for DIN rail panel installation.
Wiring Principle
- 1P+NPE configuration for line, neutral, and PE connection.
- 3P configuration for L1 / L2 / L3 phase protection.
- 3P+NPE structure includes gap discharge path.
- Wiring examples are available for BHPM06M3, BHPM20M2~BHPM100M2, BHPM25M1, and BHPM50M1.
Specification
- Rated operation voltage: 85~250V
- Counter pulse threshold: ≧ 1kA
- Maximum count: 99
- Counting method: Pulse
- Counter display method: 2 digits LED red
- Minimum interval between counter pulses: ≧ 200ms
- Digital memory method: Pulse falling edge, flash accumulation record
- Dimension: 91 x 68 x 18 (mm)
- Certification
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ISO14001 -
TPM -
CE
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BHPM Type Surge Protective Device BHPM Type | Shihlin Electric
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