Fuse insert Eti-Polam WT-1/gF NH1 200 A gF 500 V

Eti-Polam WT-1/gF NH1 200 A gF 500 V is a replaceable NH1 fuse insert designed for industrial and commercial electrical installations requiring standardized NH fuses. The insert provides overcurrent and short-circuit protection with a gF characteristic, which ensures full-range protection for conductors and downstream equipment. It is intended to be mounted in NH1 fuse holders and compatible switchgear, offering a compact, standardized solution for protection coordination and equipment safety.

Advantages

The fuse insert combines a 200 A rated current with gF (full-range) characteristic to protect both conductors and connected devices from overloads and short circuits. Its construction follows NH1 dimensions, enabling straightforward replacement and compatibility with NH1 fuse bases and switchgear. The design provides reliable interruption performance at up to 500 V and supports coordinated protection schemes in commercial and industrial panels.

Suitable for

• Protection of power distribution feeders in commercial and industrial switchboards
• Coordination with motor starters and control circuits requiring full-range fusing
• Replacement of NH1 fuse inserts in existing NH fuse holders
• Short-circuit and overcurrent protection in centralized distribution systems

Key specifications

• Rated current: 200 A
• Breaking characteristic: gF (full-range)
• Rated voltage: 500 V
• Fuse format: NH1 replaceable insert
• Intended use: overcurrent and short-circuit protection

How to use

Install the fuse insert into a compatible NH1 fuse holder following the manufacturer instructions for the switchgear or panel. Ensure power is de-energized and locked out before replacing or installing the insert. Verify that the fuse rating and characteristic match the circuit protection requirements and that the holder and connections are rated for the expected current and voltage. After installation, restore power and check for proper operation and absence of overheating at terminals during initial load conditions.

Usage recommendations

Use this NH1 gF fuse insert as part of a coordinated protection scheme; check upstream and downstream devices for compatible ratings. Replace only with identical type and rating to maintain protective characteristics. Periodically inspect the fuse holder and connection points for signs of corrosion, loosening, or thermal damage.