Description:
The Earthing switch is a type of electrical switch that is used to connect or disconnect an electrical circuit from the ground. It is typically used to provide a safe path for electrical current to flow to the ground in the event of a fault or short circuit.
Introduction
JN15 -12/31.5 Series indoor Earthing Switch is a new design which is improved on the ES1 type. It is suitable for electric power system with 3-12KV, three- -phase and AC501601Hz As an eathing protection, it can be used in various kinds of HV Switchgears. It meets GB1985- -2004 and IEC129 standard.
Working condition
O Ambient temperature:-10°C - +40°C ; O Altitude:≤1000m; O Relative humidity: Daily average≤95%, Monthly average≤90% O Earthquake intensity:≤8 degree; O Dirtiness degree: II.
Drawing

Coppcr tcrminal block

Holc location diagram

No. | ltem | Unit | Data | |
1 | Rated voltage | KV | 12 | |
2 | Rated short time withstand current | KA | 31.5 | |
3 | Rated short circuit withstand time | S | 4 | |
4 | Rated short circuit making current | KA | 80 | |
5 | Rated peak withstand current | KA | 80 | |
6 | Rated insulation level | 1min power frequency withstand voltage | 42 | |
Lightning Impulse withstand voltage | KV | 75 | ||
7 | Mechanical life | TIMES | 2000 | |
(Unit:mm) | ||||||
Specification | E | F | G | H | D | C |
JN15-12/31.5-165 | 165 | 75 | 160 | 565 | 426 | |
JN15-12/31.5-180 | 180 | 75 | 160 | 595 | 456 | |
JN15-12/31.5-200 | 200 | 75 | 160 | 635 | 496 | |
JN15-12/31.5-210 | 210 | 75 | 160 | 655 | 516 | |
JN15-12/31.5-220 | 220 | 75 | 160 | 675 | 536 | |
JN1512/31.5230 | 230 | 75 | 160 | 695 | 556 | 96 |
JN15-12/31.5-250 | 250 | 75 | 160 | 735 | 596 | 96 |
JN15-12/31.5-275 | 275 | 75 | 185 | 810 | 646 | 96 |
Order notes:Indicate product speifiation, central distance between poles, if the electric live displaylmodel number of display) needed or not. Please note the soft link length when ordering (normal L=250mm). Please consult us if you have any special request.
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