GE0800NT4 - 4P SWITCH DISCONNECTOR W/NH FUSE HOLDER

Why Choose the GE0800NT4?

Engineered for dependable isolation and protection, the Lovato GE0800NT4 is a four‑pole switch disconnector with NH fuse holder for AC systems. With an IEC conventional free‑air thermal current Ith of 800 A and conditional short‑circuit current up to 100 kA, it delivers robust performance in demanding panels. Rated insulation voltage Ui is 1000 V with 12 kV impulse withstand, and the frontal IP20 rating supports safer, finger‑safe operation.

Flexible across duty categories, it achieves Ie up to 800 A at AC21A/AC22A (400–500 V) and 630 A at 690 V, with AC23A performance to 630 A at 400–500 V and 400 A at 690 V, and operational power to 370 kW. Built for 5,000 mechanical cycles, -25 to 55 °C operation and installation by screw on plate up to 3,000 m altitude, it conforms to IEC/EN 60947‑1 and 60947‑3 for assured reliability.

Key Benefits

• High 800 A Ith for heavy‑duty AC isolation and protection.
• Conditional short‑circuit rating of 100 kA enhances fault resilience.
• Four‑pole switching provides comprehensive isolation across multi‑wire circuits.
• AC23A performance: 630 A at 400–500 V, 400 A at 690 V.
• NH fuse holder integrates overcurrent protection within the device.
• IP20 frontal protection offers finger‑safe operation when panel‑mounted.
• Built for -25 to 55 °C operation and 5,000 mechanical cycles.
• Compliant with IEC/EN 60947‑1 and 60947‑3 for assured conformity.

Technical Specification

• Product type designation: GE
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 800 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Operating current Ie AC21A 400 V: 800 A
• Operating current Ie AC21A 500 V: 800 A
• Operating current Ie AC21A 690 V: 630 A
• Operating current Ie AC22A 400 V: 800 A
• Operating current Ie AC22A 500 V: 800 A
• Operating current Ie AC22A 690 V: 630 A
• Operating current Ie AC23A 400 V: 630 A
• Operating current Ie AC23A 500 V: 630 A
• Operating current Ie AC23A 690 V: 400 A
• Power dissipation per pole (max): 63 W
• Rated operational power AC23A 400 V: 355 kW
• Rated operational power AC23A 690 V: 370 kW
• Conditional short-circuit current (rms): 100 kA
• Making capacity AC23A 400 V: 6300 A
• Breaking capacity AC23A 400 V: 5100 A
• Mechanical life: 5000 cycles
• Terminal tightening torque (max): 13 Nm
• Operating temperature: -25 to 55 °C
• Storage temperature: -40 to 70 °C
• Max altitude: 3000 m
• IP degree (frontal): IP20
• Pollution degree: 3

What’s Included

• GE0800NT4 four-pole switch disconnector with NH fuse holder
• Manufacturer datasheet (download via product page)
• Installation and safety instructions

Applications

• Main incoming or feeder isolation in low-voltage AC distribution panels
• Protection and isolation for industrial switchboards and motor control centres
• Load switching up to AC23A duties at 400–690 V
• Maintenance isolator duties for machinery and plant up to 800 A Ith

Safety note: Installation and maintenance must be performed by qualified personnel with the supply isolated. Use correctly rated NH fuses, observe IEC/EN 60947 guidelines, and ensure suitable enclosure as IP20 is frontal only.