GE0400NT4 - 4P SWITCH DISCONNECTOR W/NH FUSE HOLDER

Why Choose the GE0400NT4?

Engineered by Lovato, the GE0400NT4 is a four-pole switch disconnector with NH fuse holder designed for dependable isolation and protection in AC systems. Rated at 400 A Ith and suited to screw-on-plate mounting, this GE-series unit simplifies panel integration while maintaining compact, safe operation. Its NH fuse accommodation enhances fault protection, helping safeguard downstream circuits across industrial distribution and switching applications.

Performance is assured with Ui 1000 V and Uimp 12 kV, plus IP20 frontal protection. Ie is 400 A for AC21A/AC22A up to 690 V, and 315 A for AC23A at 690 V, with 220 kW at 400 V AC23A. A 100 kA conditional short-circuit rating, 10,000 mechanical cycles, and -25 to 55 °C operation support reliable service to 3,000 m.

Key Benefits

• Four-pole AC isolation with integrated NH fuse protection
• 400 A Ith with robust AC21A and AC22A performance to 690 V
• Strong AC23A ratings, including 220 kW at 400 V
• High conditional short-circuit capability of 100 kA
• IP20 frontal protection for enhanced operator safety
• Screw-on-plate mounting for straightforward panel installation
• Durable mechanism rated for 10,000 mechanical cycles
• Operates from -25 to 55 °C, up to 3,000 m altitude

Technical Specification

• Product type designation: GE
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 400 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV
• Operating current Ie AC21A 400 V: 400 A
• Operating current Ie AC21A 500 V: 400 A
• Operating current Ie AC21A 690 V: 400 A
• Operating current Ie AC22A 400 V: 400 A
• Operating current Ie AC22A 500 V: 400 A
• Operating current Ie AC22A 690 V: 400 A
• Operating current Ie AC23A 400 V: 400 A
• Operating current Ie AC23A 500 V: 400 A
• Operating current Ie AC23A 690 V: 315 A
• Power dissipation per pole (max): 29 W
• Rated operational power AC23A 400 V: 220 kW
• Rated operational power AC23A 690 V: 250 kW
• Conditional short-circuit current (rms): 100 kA
• Making capacity AC23A 400 V: 4000 A
• Breaking capacity AC23A 400 V: 3200 A
• Mechanical life: 10000 cycles
• Terminal tightening torque (max): 24 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

• Lovato GE0400NT4 switch disconnector with NH fuse holder
• Basic installation and safety instructions

Applications

• Main isolation in industrial switchboards
• Load switching for resistive and mixed loads (AC21A/AC22A)
• Inductive and motor load switching within AC23A ratings
• Protection and isolation in distribution and control panels
• Panel-mount applications requiring NH fuse protection

Safety note: Install and commission only by qualified personnel. Isolate supplies before work, fit appropriate NH fuses, and tighten terminals to specification (max 24 Nm). Always follow IEC/EN and local regulations.