Knife-shaped series low-voltage fuses
This series of fuses are suitable for AC 50Hz, rated voltage up to 1000V, and rated current up to 1250A. They are mainly used in electrical installations for line overload and moderate protection (gG/gL). It can also be derived as moderate protection (aR) for conductor devices and their complete sets of equipment, as well as short-circuit protection (aM) for motors.The rated breaking capacity of this series of fuses is up to 120kA.This series of fuses comply with the national standard GB13539 and the International Electrotechnical Commission standard IEC60269.
Product Overview
Product model
Product model | Rated voltage | Agreed heating current | (mm)Overall dimensions(mm) | |||||||
A1 | A2 | A3 | B1 | B2 | H1 | H2 | Φd | |||
NT1/NH1/NGTC1 | 500/690V | 250A | 25 | 175 | 197 | 25 | 56 | 32 | 80 | 10.5 |
NT2/NH2/NGTC2 | 500/690V | 400A | 25 | 200 | 225 | 25 | 61 | 35 | 95 | 10.5 |
NT3/NH3/NGTC3 | 500/690V | 630A | 25 | 210 | 251 | 40 | 61 | 35 | 100 | 10.5 |
NT4/NH4/NGTC4 | 500/690V | 1000A | 44 | 260 | 309 | 45 | 87 | 40 | 140 | 10.5 |








