GN27-40.5 Series isolation switch

Zipper closure 1/4 zip athletic pullovers for men. Stretchy, lightweight, fast-drying fabric for superior performance. REGULAR FIT - US standard sizes. An athletic fit that sits close to the body for a wide range of motion, designed for optimal performance and all day comfort. FEATURES - Quarter zip closure;Thumbholes on long sleeves to keep them in place during workout
model Rated voltage(kV) Rated current(A) Rated short time
receiving current
Rated peak
receiving current

Lightning impulse withstand


1min power frequency

withstand voltage

Ground and Interpolar Fracture Ground and Interpolar Fracture
kA kA kA kA
GN27-40.5/630-20 40.5 630 20/4s 50 185 215 95 115
GN27-40.5/1250-31.5 40.5 1250 31.5/4s 80 185 215 95 115


The main function

1. The design is scientific, reasonable and novel in structure;
2. Multi-contact, rotary contact, good self-cleaning ability, improve heat dissipation;
3. The contact points are in two surfaces, the operating force distance is small, the pressure resistance is large, and it is easy to adjust;
4. The creepage distance, reinforced insulation capacity and withstand voltage all meet the highest requirements
5. The bearing is installed on the rotating shaft, the service life is improved, and the operation is easy

Use environmental conditions

a) Altitude: no more than 1000m;
b) Ambient air temperature: upper limit +40°C, lower limit -25°C;
c) The relative humidity of the surrounding environment: the daily average is not more than 95%, and the monthly average is not more than 90%;
d) The seismic intensity does not exceed 8 degrees;
e) There is no fire, explosion hazard, serious pollution, chemical corrosion and severe vibration places;

Shape and installation dimensions