Lovato GEF0063N is a three-pole 63 A AC switch disconnector with an integrated NH fuse holder, 1000 V insulation rating and 100 kA conditional short-circuit current capability for industrial fused isolation applications.
£122.27
The Lovato GEF0063N is a three-pole 63 A switch disconnector with an integrated NH fuse holder, designed to combine reliable circuit isolation with fuse protection in industrial and commercial electrical systems. As part of the Lovato GEF fused switch disconnector series, it provides a compact solution for panel builders and electrical engineers who require switching, isolation and fuse accommodation within a single device.
The GEF0063N has an IEC conventional free-air thermal current rating of 63 A, a rated insulation voltage of 1000 V and a rated impulse withstand voltage of 8 kV. Its integrated NH fuse-holder arrangement provides convenient installation of compatible NH fuse links while the switch disconnector provides manual isolation of all three poles.
Designed for demanding AC applications, the GEF0063N is rated at 63 A at 400–500 V AC for AC-21A and AC-22A utilisation categories. Under AC-23A conditions it is rated at 63 A at 400 V AC and 50 A at 500 V AC, with a conditional short-circuit current rating of 100 kA rms.
Fused switch disconnectors combine manual circuit isolation with accommodation for fuse links, allowing a single assembly to provide switching and a convenient means of incorporating overcurrent and short-circuit protection. This makes them particularly useful in industrial distribution systems where compact installation and coordinated protection are important.
The Lovato GEF0063N combines three-pole isolation with an integrated NH fuse holder and a high 100 kA rms conditional short-circuit current rating. Its AC-21A, AC-22A and AC-23A ratings make it suitable for a broad range of industrial loads, while screw mounting and flexible operating orientation simplify integration into switchboards and control panels.
| Manufacturer | Lovato Electric |
|---|---|
| Series | GEF |
| Model | GEF0063N |
| Product type | Switch disconnector with fuse holder |
| Fuse type | NH |
| Operating voltage type | AC |
| Number of poles | 3 |
| IEC conventional free-air thermal current Ith | 63 A at ≤40 °C |
| Rated insulation voltage Ui | 1000 V |
| Rated impulse withstand voltage Uimp | 8 kV |
| AC-21A operational current | 63 A at 400 V AC; 63 A at 500 V AC |
| AC-22A operational current | 63 A at 400 V AC; 63 A at 500 V AC |
| AC-23A operational current | 63 A at 400 V AC; 50 A at 500 V AC |
| Maximum power dissipation per pole | 5.8 W |
| Conditional short-circuit current | 100 kA rms |
| AC-23A making capacity at 400 V | 630 A |
| AC-23A breaking capacity at 400 V | 504 A |
| Mechanical life | 10,000 cycles |
| Normal operating position | Vertical plane |
| Permitted operating position | Any |
| Installation | Screw mounting on plate |
| Terminal type | Hex terminals |
| Maximum terminal tightening torque | 2 Nm |
| Maximum UL operating voltage | 500 V |
| Operating temperature | -25 to +55 °C |
| Storage temperature | -40 to +70 °C |
| Maximum altitude | 3000 m |
| Frontal protection rating | IP20 |
| Terminal protection rating | IP20 |
| Pollution degree | 3 |
| Product weight | 850 g |
| Package quantity | 1 |
| Package dimensions | 190 × 140 × 125 mm |
| Package volume | 3325 cm³ |
| EAN-13 | 8013975324226 |
| HS code | 85365080 |
The GEF0063N is a three-pole 63 A switch disconnector with an NH fuse holder used to provide manual circuit isolation while accommodating fuse protection in industrial and commercial electrical systems.
The GEF0063N is designed with an integrated holder for NH-type fuse links.
The GEF0063N has an IEC conventional free-air thermal current rating of 63 A at temperatures up to 40 °C. Its AC-23A operational rating is 63 A at 400 V AC and 50 A at 500 V AC.
The GEF0063N has a conditional short-circuit current rating of 100 kA rms, making it suitable for demanding fused industrial distribution applications when correctly installed with appropriate fuse protection.
The GEF0063N is designed for screw mounting onto a plate. It uses hex terminals with a maximum specified terminal tightening torque of 2 Nm.
Lovato GEF fused switch disconnectors provide panel builders, OEMs and electrical engineers with coordinated switching, isolation and fuse-holder functionality for dependable industrial power distribution and machinery applications.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...