Fuse cartridge Etipo ETI Polam WT1 004184221 gG 80A 500V KOMBI time-delay

The Etipo ETI Polam WT1 fuse cartridge gG 80A 500V KOMBI time-delay is a cylindrical low-voltage protective device designed to interrupt overcurrents while allowing short-duration inrush currents. It provides general-purpose (gG) protection for conductors and electrical equipment in industrial and commercial installations. The time-delay (KOMBI) characteristic enables selective operation in systems with transient start-up currents without compromising protection during sustained overloads or short circuits.

Advantages

The WT1 fuse cartridge combines time-delay response with a gG characteristic to balance protection and continuity of service. Its rated 80 A nominal current and 500 V voltage rating make it suitable for a range of low-voltage circuits. The cartridge format allows straightforward replacement in compatible fuse holders and simplifies maintenance. Compliance with standard fuse performance characteristics ensures predictable clearing behavior and coordination with downstream protective devices.

Suitable for

• Protection of distribution circuits in industrial switchboards
• Overcurrent protection for motor feeders with temporary inrush currents
• Protection of transformers and control panels in commercial buildings
• Replacement of blown cartridges in compatible fuse holders

Key specifications

• Rated current: 80 A (nominal)
• Rated voltage: 500 V
• Tripping characteristic: gG — general-purpose (full-range) protection
• Time characteristic: KOMBI time-delay for delayed response to short transients
• Form factor: cartridge fuse designed for low-voltage fuse holders

How to use

Install the fuse cartridge in a compatible low-voltage fuse holder or switchgear following the equipment manufacturer’s instructions and local electrical regulations. Before replacement, isolate the circuit and verify absence of voltage. Fit the cartridge firmly in the holder, ensuring correct orientation and secure contact. After installation, restore power and check the circuit for normal operation. Use only fuses of the specified rating and characteristic for proper protection coordination.

Usage recommendations

For reliable performance, select this WT1 gG 80A 500V KOMBI time-delay cartridge when coordination with upstream and downstream protective devices is required and when equipment exhibits temporary start-up currents. Regularly inspect fuse holders for signs of wear or corrosion and replace cartridges only when the circuit is de-energized and following applicable safety practices.