VPH888-12.5 (T1+T2) Series Type 1+2 AC SPD
- Nominal discharge current In(8/20 us): 20 kA / 25 kA
- Max. discharge current Imax (8/20 us): 50 kA / 80 kA
- Max. continuous operating voltage Uc: AC 880 V / AC 1000 V
- Selectable circuit protection modes: 3P + 1P / 3N + NPG
- Utilizes advanced spark gap & MOV hybrid technology with reliable follow-current interruption capability
- Integrated thermal disconnect protection with remote alarm contact (NPG)
- Modular plug-and-play design (VPM series) / Robust integrated construction (VPH series)
Application:
The VPH888 and VPM1000 series are combined Type 1 + Type 2 surge protective devices (SPDs). Their integrated design provides coordinated two-stage protection within a single unit: high-energy impulse current (Iimp) discharge for primary protection at the LPZ0-1 boundary, followed by fine protection with low residual voltage. This makes them ideal, space-saving solutions for main power inlets and distribution boards in commercial, industrial, and critical infrastructure applications requiring maximum reliability against lightning and surge threats.
Technical parameters:
Model | VPH888-12.5/3P+1P(T1+T2) |
SPD according to EN/IEC 61643-11 | Type 1+2 |
Network | IT-TN |
Protection mode | 3+1 mode |
Nominal operating voltage Un | AC 690 V 50/60 Hz |
Max. continuous operating voltage Uc | AC 880 V 50/60 Hz |
Impulse current Iimp (10/350 μs) | 12.5 kA |
Nominal discharge current In (8/20 μs) | 20 kA |
Max. discharge current Imax (8/20 μs) | 80 kA |
Voltage protection level Up | ≤ 3.4 kV |
Leakage current | ≤ 20 μA |
Response time | ≤ 25 ns |
Max. backup fuse | 250 A gL/gG |
Cross-sectional area | 6 ~ 35 mm2 |
Stripping length terminals | 12.5 mm |
Tightening torque | 3 N·m |
Normal/Fault Indication | Green/Red |
Remote signaling mode | RSC: Remote Signal contact, NC-COM-NO contact |
Performances of remote signal contact | AC: 250 V/0.5 A; DC: 250 V/0.1 A, 125 V/0.2 A, 75 V/0.5 A |
Remote cross-sectional area | Max. 1.5 mm2 |
Installation method | 35 mm DIN rail |
Housing material | PBT UL94-V0 |
Protection class | IP20 |
Operation temperature | -40 ℃ ~ +80 ℃ |
Relative humidity | ≤ 95% (25 ℃) |
Operating altitude | ≤ 3000 m |
Outline dimensions (without terminal) | 90.0 mm × 72.0 mm × 77 mm (tolerance ± 1 mm) |
Module pluggable | Pluggable |
Internal protective devices | Built-in thermal tripping device |
Short-circuit withstand capability | 25 kArms |
Selection guide:
Model | Un | Uc | Up | In | Imax | Protection mode | Operating Principle | Size |
VPH888-12.5/3P+1P(T1+T2) | AC 690 V | AC 880 V | 3.4 kV | 20 kA | 80 kA | L-PE | Figure1.9.1 | Figure 1.10.1 |
Operating Principle:
Documentation
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