Maintenance Earthing
Installed as the earthing function in high-voltage switchgear, the switch supports the grounding arrangements required for equipment maintenance.
GreenPower
GPJN15A EK6 Earthing Switch
Rated Voltage12 kV / 24 kV / 40.5 kV
Short-Time Withstand Current31.5 kA / 4 s
Short-Circuit Making Current80 kA
Mechanical Life3,000 operations
Product Overview
GPJN15A EK6, model GPJN15A-12/31.5, is an assembled indoor high-voltage AC earthing switch for three-phase, 50/60 Hz systems in the 3–12 kV range. It provides the earthing function during switchgear maintenance and has short-circuit making capability. Its rated voltage is 12 kV, with 31.5 kA short-time withstand current for 4 s and a mechanical life of 3,000 operations.
12 kV Three-Phase Systems
Designed for indoor AC power systems at 50 or 60 Hz. Match the phase spacing, operating direction and mounting dimensions to the selected cabinet.
Key Features
80 kA Making Capacity
The GPJN15A-12/31.5 model has an 80 kA short-circuit making rating and an 80 kA peak withstand rating, alongside its 31.5 kA, 4 s short-time withstand duty.
3,000-Operation Mechanical Life
Mechanical life is rated at 3,000 operations. Include the expected operating duty in technical selection for the switchgear installation.
Live Indicator Options
The switch can be ordered with or without a live indicator device. Specify the required indicator model when this option is needed.
Technical Specifications
| Parameter | Data |
|---|---|
| Rated Voltage | 12 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Short-Time Withstand Current | 31.5 kA |
| Rated Short-Time Duration | 4 s |
| Rated Short-Circuit Making Current | 80 kA |
| Rated Peak Withstand Current | 80 kA |
| 1-Minute Power-Frequency Withstand Voltage | 42 kV |
| Lightning Impulse Withstand Voltage | 75 kV |
| Mechanical Life | 3,000 operations |
Power-frequency and lightning impulse insulation values apply pole to earth and between poles.
Model Selection And Installation
The model suffix identifies phase spacing. Dimension D is the mounting span shown in the catalog installation drawing; all dimensions below are in millimetres.
| Model | Phase Spacing | Mounting Span D |
|---|---|---|
| GPJN15A-12/31.5-150 | 150 mm | 396 mm |
| GPJN15A-12/31.5-165 | 165 mm | 426 mm |
| GPJN15A-12/31.5-190 | 190 mm | 476 mm |
| GPJN15A-12/31.5-200 | 200 mm | 496 mm |
| GPJN15A-12/31.5-210 | 210 mm | 516 mm |
| GPJN15A-12/31.5-230 | 230 mm | 556 mm |
| GPJN15A-12/31.5-250 | 250 mm | 596 mm |
| GPJN15A-12/31.5-275 | 275 mm | 646 mm |
For 180 mm phase spacing or special installation requirements, confirm the exact model with GreenPower. Download the catalog for the complete outline, mounting and fixed-contact drawings before finalizing the cabinet layout.
Operating And Ordering Options
Left Or Right Operation
Specify the required left or right operating arrangement in the order. Check the shaft side and operating access against the intended installation.
Connections And Live Indication
Confirm the required flexible connection length and whether an extension is needed. State whether a live indicator is required and provide its model when ordering.
Service Conditions
Altitude
Not exceeding 1000 m above sea level.
Ambient Temperature
-25°C to +45°C.
Relative Humidity
Daily average not exceeding 95%; monthly average not exceeding 90%.
Seismic Intensity
Not exceeding degree 8.
Pollution Class
Class II.
Special Requirements
Provide any special site or installation requirements when ordering so detailed specifications can be confirmed with GreenPower.
Standards Referenced
The catalog references GB1985-2004 and IEC 62271-102 for high-voltage AC disconnectors and earthing switches. Specify the required standard and edition for your project during technical confirmation.
- GB1985-2004
- IEC 62271-102
Request Technical Confirmation For GPJN15A EK6
Please specify the product model, phase spacing and left or right operating direction. Confirm whether a live indicator is required and provide its model, the required flexible connection length and any special installation or site conditions.