GEF0063NT4 Lovato 4P SWITCH WITH FUSE HOLDER NH 63A

Why Choose the Lovato GEF0063NT4 4-Pole 63 A Switch Disconnector with NH Fuse Holder?

The Lovato GEF0063NT4 is a four-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 requiring four-pole switching, isolation and fuse accommodation within a single device.

The GEF0063NT4 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 accommodates compatible NH fuse links, while the four-pole switching configuration enables coordinated isolation of four circuit conductors.

Designed for demanding AC applications, the GEF0063NT4 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.

Key Advantages

• Combines a four-pole switch disconnector and NH fuse holder in one coordinated device.
• 63 A conventional free-air thermal current rating for industrial power distribution applications.
• Supports AC-21A, AC-22A and AC-23A utilisation categories.
• High 100 kA rms conditional short-circuit current capability.
• 1000 V rated insulation voltage and 8 kV impulse withstand voltage.
• Four-pole configuration is suitable for installations requiring simultaneous switching and isolation of four conductors.

Key Features

• Lovato GEF switch disconnector with fuse-holder series.
• Four-pole switching configuration.
• Integrated NH fuse holder.
• 63 A IEC conventional free-air thermal current at temperatures up to 40 °C.
• 1000 V rated insulation voltage Ui.
• 8 kV rated impulse withstand voltage Uimp.
• AC-21A operational current of 63 A at 400–500 V AC.
• AC-22A operational current of 63 A at 400–500 V AC.
• AC-23A operational current of 63 A at 400 V AC and 50 A at 500 V AC.
• 100 kA rms conditional short-circuit current.
• 10,000-cycle mechanical life for dependable industrial switching.
• Designed for screw mounting onto a plate.

Combined Four-Pole Fuse Protection and Circuit Isolation

Fused switch disconnectors combine manual circuit isolation with accommodation for fuse links, enabling switching and fuse protection to be incorporated into a coordinated assembly. Four-pole versions such as the GEF0063NT4 are particularly useful where four circuit conductors need to be isolated together, including suitable three-phase systems where neutral switching is required.

The Lovato GEF0063NT4 combines four-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.

Typical Applications

• Industrial power distribution and feeder isolation.
• Four-pole fused switching and isolation systems.
• Switchboards and electrical distribution panels.
• Machinery and industrial control panels.
• Three-phase systems requiring switched neutral isolation.
• Commercial and industrial electrical installations requiring NH fuse protection.