BHPM Type Surge Protective Device BHPM Type | Shihlin Electric
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Surge Protective Device BHPM Type
BHPM Type
Product information
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
- Standard: IEC 61643
- Classification: Class I / Class II / Class III (depending on model)
- Power system: AC 220V / 380V, 50 / 60Hz
- Installation: Standard 35mm DIN rail
- Structure: Plug-in modular design
- Maximum continuous operating voltage Uc: 275Vac (MOV / L-N); 255Vac (NPE / N-PE), depending on model
- Response time: MOV / L-N ≤ 25ns; NPE / N-PE ≤ 100ns
- Class III: Uoc 6kV; Uc 275Vac; Up 1.0kV; poles 2P / 3P / 4P
- Class II: Nominal discharge current In / maximum discharge current Imax: 10/20, 20/40, 30/65, 40/80 or 60/100kA (depending on model)
- Class II: Voltage protection level Up: 1.2–2.0kV (depending on model and MOV / NPE configuration)
- Class I: Nominal discharge current In: 25kA or 50kA; impulse current Iimp: 25kA or 50kA (L-N), 25kA or 100kA (N-PE), depending on model
- Class I: Voltage protection level Up: 2.2kV or 2.5kV (depending on model and configuration)
- Class I / II poles: 1P / 2P / 3P / 4P / 1P+1 / 2P+1 / 3P+1 (+1 = NPE)
- Alarm switch: Availability and contact ratings depend on model; refer to the catalog
- Dimensions: Height 90.5mm × depth 68.5mm for the 6kV Class III and 20–80kA Class II models; height 90mm × depth 66mm for the Class I and 100kA Class II models; width depends on pole configuration
- Operating temperature: -5°C to +40°C
- Relative humidity: 30–99%
- Installation altitude: Below 2000m
- Certification
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ISO14001 -
TPM -
CE
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