TGU3 series surge protective device (hereinafter referred to as SPD) has various protection modes such as
phase-to-phase, phase-to-earth, phase-to-neutral, neutral-to-earth, and their combinations; it is suitable for
AC 50/60Hz TT, IT, TN-S, and TN-C-S power supply system (or communication system) with voltage 380V
and below for protection of indirect thunder and lightning, direct thunder and lighting or other instantaneous
overvoltage and overcurrent surge for more effective electricity safety
| Number of poles | 1P、2P、3P、4P | 1P、1P+N、2P、3P、3P+N、4P | 1P、2P、3P、4P | ||||||
| Rated frequency (Hz) | 50-60 | ||||||||
| Grid operational voltage | 220/380 | ||||||||
| Un (V) | |||||||||
| Max. Continuous operating current Uc (V) | 385 | 385 | |||||||
| Voltage protection grade | ≤3.5 | ≤3.0 | ≤2.5 | ≤2.3 | ≤2.0 | ≤1.8 | ≤1.5 | ≤2.2 | ≤1.8 |
| Up (kV) | |||||||||
| Max. Discharge current | 160 | 120 | 100 | 80 | 60 | 40 | 20 | Iimp25 | Iimp15 |
| Imax (kA) | |||||||||
| Nominal discharge current | 100 | 70 | 60 | 40 | 30 | 20 | 10 | 30 | 20 |
| In (kA) | |||||||||
| Response time Ta (ns) | 100 | 100 | 25 | 25 | 25 | 25 | 25 | 100 | 100 |
| L/N recommended diameter of connecting wire (mm) | 25,35 | 16,25 | 16,25 | 16,25 | 16,25 | 10,16 | 10,16 | 25 | 16 |
| PE recommended diameter of connecting wire (mm) | 35 | 25,35 | 25,35 | 25,35 | 25,35 | 25 | 25 | 35 | 25 |
| Matched fuse or circuit breaker(A) | 63,125 | 63,100 | 63,100 | 32,63 | 32,63 | 25,32 | 16,25 | 63,125 | 32,63 |
| Protection grade | B | B | B | B | B | C | D | B | B |
| Test grade | Class II test (8/20 μs) | Class I (10/350μs) | |||||||
Zhejiang Tengen Electric Co., Ltd.
Sulv Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province, China, 325699
+86 21 3119 8727
marketing@tengen.com.cn
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