ZGGH20-275
General
ZGGH20-275 Modular Power Supply SPD consists of a ZGGH20-275MK power module and a ZGGH20-DZ1 base, used for the secondary or tertiary protection of L -N and L /N-PE of AC systems. It is connected between the AC power supply and system equipment in series or in parallel. It can prevent the equipment from the impulse surge and transient overvoltage caused by the outside environment (such as lightning, EMI, etc.) or by the system (such as switching effects of the system, startup or shutoff of the inductance and capacitance load, etc.).
Features
1Anti-reverse protection on the module;
2Low residual voltage;
3Overtemperature protection;
4Failure indication and centralized remote signalling alarm dry contacts;
5Enclosure IP20, UL94 V0.
Standards Complied
IEC 61643-1:2005 Low-voltage surge protective devices –Part 1:Surge protective devices connected to low-voltage power distribution systems –Requirements and tests
UL 1449 Surge Protective Devices
Technical Data
Operating Environment
| Temperature |
-40℃～80℃ |
| Relative humidity |
5 %～95 % |
| Altitude |
-500 m～﹢3000 m |
Technical Parameters
| Model |
ZGGH20-275 |
| SPD according to IEC 61643-1 |
Class Ⅱ, Class Ⅲ |
| SPD according to EN 61643-11 |
Type 2, Type 3 |
| Max. continuous operating voltage Uc |
275V |
| Operating frequency |
50/60 Hz |
| Nominal discharge current In (8/20μs) |
10kA |
| Max. discharge current Imax (8/20μs) |
20kA |
| Level Ⅱ voltage protection Up |
L-N: 1.5kV; L/N-PE: 1.8kV |
| Compound wave Uoc |
20 kV |
| Limiting voltage (6kV 1.2/50μs, 3kA 8/20μs) |
L-N: 1.1kV; L/N-PE: 1.1kV |
| Level Ⅲ voltage protection Up |
L-N: 1.5kV; L/N-PE: 1.5kV |
| Rated load current IL |
25A |
| Prepositioned fuse |
≤25A gL/gG |
| Connection mode |
In series; In parallel |
| Protection mode |
L-N, L/N-PE |
| Response time tA |
L-N: ≤25ns; L/N-PE: ≤100ns |
| Cross-sectional area of connecting terminals |
Multicore: 0.2 mm2～2.5 mm2; single-core: 0.2 mm2～4 mm2 |
| Cross-sectional area of the remote signalling interface (max.) |
2.5 mm2 |
| Intensity of the remote signalling alarm contact |
AC: 250V/0.75A 125V/3A DC: 30V/2A |
| Torque: connecting terminal |
1.0 N•m |
| Enclosure degree of protection (IP code) |
IP 20 |
| Installation system |
TN |
| Dimensions |
90 mm×18 mm×69 mm
(excluding remote signalling terminals) |
| Mounting on |
DIN 35 mm rail |
| Flammability |
UL 94 V-0 |
Circuit diagram
Configuration
