Fuses

Mersen HP15NH photovoltaic (PV) fuse serie was engineered and designed specifically for the protection of photovoltaic systems. Helio-Protection® HP15NH fuse links are designed for the protection of cables in a PV group of chains when a short circuit occurs in a panel (main fuse category). This HelioProtection® main fuse range enlarges our PV fuse links offering on 1XL/2XL/3L sizes having a worldwide acceptance. They are of the gPV type and comply with both IEC 60269-6 and UL 2579 PV standards.
They are available with plain blades, bolted blades for direct mounting with and without striker.

Mersen NH gBat fuse series was engineered specifically for protection
of battery systems. They offer full range protection and can protect
very small over currents as well as DC fault current up to 150kA. The
NH gBat fuses serie covers various ratings in 1000VDC with NH1 and
NH2 sizes, and in 1500VDC with NH1XL, NH2XL and NH3L sizes. They are gBat type that comply with new IEC 60269-7 standard for Battery protection. They are available with bolted type blades for
direct mounting, or with plain blades.

Extremely high breaking capacity fuses:
Protection of power semiconductors as per IEC standard 60269-1 and -4
250 V voltage rating as per IEC 33
gR class as per VDE 636-23 and IEC 60269.4
Design without indicator

Extremely high breaking capacity fuses:
Protection of power semiconductors as per IEC standard 60269-1 and -4
690V voltage rating as per IEC 33
gR class (current ratings 12 to 90A) as per VDE 636-23
- Clearing all overloads
- Improved safety and protection
- Enabling selective coordination with all fuses within distribution circuit
aR class (current ratings 100A) according to VDE 636-23 and IEC 60269-4
Connection as per:
- German standard DIN 43653/00C
- British standard BS88-4
These fuses are UL Recognized

Extremely high breaking capacity fuses:
Protection of power semiconductors as per IEC standard 60269-1 and -4
250 V voltage rating as per IEC 33
gR class as per VDE 636-23 and IEC 60269.4

Design available with separated trip-indicator or without trip-indicator

Extremely high breaking capacity fuses:
Protection of power semiconductors as per IEC standard 60269-1 and -4
690V voltage rating as per IEC 33
gR class (current ratings 12 to 90A) as per VDE 636-23
- Clearing all overloads
- Improved safety and protection
- Enabling selective coordination with all fuses within distribution circuit
aR class (current ratings 100A) according to VDE 636-23 and IEC 60269-4
Connection as per:
- German standard DIN 43653/00C
- British standard BS88-4
These fuses are UL Recognized

Extremely high breaking capacity fuses:
Protection of power semiconductors as per IEC standard 60269-1 and -4
690V voltage rating as per IEC 33
aR class (current ratings from 75 to 800A) as per VDE 636-23 and IEC 60269.4
Design without indicator

Mersen DC offers provide a very high performant protection for railway power and auxiliary circuits. Mersen DC Semiconductor fuse-links were developed to provide improved performance required by today's new DC equipment. These fuse-links are typically operated at more elevated temperature than other fuse type, have lower I²t to minimize damage to protected components on short circuits, lower watts loss and longer life.

These Protistor® size 14x51 have been designed to protect power semiconductors.
They are extremely high interrupting rating fuses: 440VDC, with large band of ratings (current rating 2 to 50A).

Mersen DC offers provide a very high performant protection for railway power and auxiliary circuits. Mersen DC Semiconductor fuse-links were developed to provide improved performance required by today's new DC equipment. These fuse-links are typically operated at more elevated temperature than other fuse type, have lower I²t to minimize damage to protected components on short circuits, lower watts loss and longer life.