Lovato GLX420400 IEC/EN fourth pole add-on 400A

Why Choose the GLX420400?

Designed for seamless expansion, the Lovato GLX420400 Fourth Pole Add-On Accessory (SKU GLX420400) equips GL0400C1 switch disconnectors with an additional, simultaneously closing pole. This one-pole module is intended for AC systems, maintaining consistent switching behaviour alongside existing poles. With an IEC conventional free air thermal current Ith of 400 A, it suits heavy-duty distribution and control applications where reliable four-pole isolation is required without replacing the primary switch disconnector.

Part of the GLX42 series, this accessory carries a rated insulation voltage Ui of 1000 V and a rated impulse withstand voltage Uimp of 12 kV. It conforms to IEC/EN 60947-3 and IEC/EN 60947-1 for dependable performance in industrial panels. Purpose-built as an accessory for GL0400C1, it integrates cleanly into assemblies and supports consistent, simultaneous closing operation to enhance safety, serviceability and compliance across AC distribution and control installations.

Key Benefits

• Adds a simultaneous-closing fourth pole to GL0400C1 switch disconnectors.
• Rated Ith 400 A for demanding industrial AC applications.
• One-pole add-on simplifies expansion without replacing main device.
• High Ui 1000 V insulation rating for robust system protection.
• Uimp 12 kV rating supports transient overvoltage withstand.
• Fully compliant with IEC/EN 60947-3 and IEC/EN 60947-1.
• Lovato GLX42 series accessory ensures dependable integration.

Technical Specification

• Product type designation: GLX42
• Number of poles: 1
• Operating voltage type: AC
• Ith (IEC): 400 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 12 kV

What’s Included

• GLX420400 fourth pole add-on module
• Manufacturer installation guidance (basic)
• Product datasheet (downloadable)

Applications

• Extending GL0400C1 switch disconnectors to four-pole operation
• Industrial AC switchboard and panel upgrades requiring an additional pole
• Retrofit projects meeting IEC/EN 60947 device conformity
• Equipment isolation where 400 A Ith capability is required

Safety note: Installation must be carried out by a qualified electrician. Isolate all power sources and follow Lovato documentation and applicable IEC/EN requirements.