Mersen A13X400-4 Semiconductor Fuse 400A 130VAC 1000VDC

Product Description

The MERSEN A13X400-4 is a fast-acting semiconductor fuse from the AMP-TRAP series, rated at 400 amps, 130 volts AC, and 1000 volts DC. It is designed to provide high-speed overcurrent protection for power semiconductor devices such as SCRs, diodes, IGBTs, and thyristors used in variable frequency drives, rectifiers, and power conversion equipment. The blade mount connection style allows secure installation in compatible fuse holders and power distribution assemblies. With a diameter of 1.13 inches and a weight of 1 pound, this is a compact yet high-capacity protective device. Licensed electricians and industrial electrical technicians are the primary installers.

This fuse is suited for industrial and commercial power electronics applications where very fast fault clearing is critical to protecting sensitive semiconductor components. Typical installations include motor drive panels, DC bus protection, uninterruptible power supplies, and industrial rectifier assemblies operating at low AC voltage or high DC voltage. The 1000VDC rating makes it appropriate for solar inverter and battery storage system protection as well. It carries an AIC rating of 8 kA at 130VAC.

Key Features

• Very fast acting response protects sensitive semiconductor devices from thermal damage during fault conditions
• 400 amp continuous current rating for high-capacity power circuits
• Dual voltage ratings: 130 volts AC and 1000 volts DC for AC and DC bus applications
• Blade bolt-in mount for positive mechanical and electrical connection in fuse holders
• AIC rating of 8 kA at 130VAC ensures reliable interruption of available fault current
• Single-barrel construction in a compact 1.13-inch diameter body

Compatibility

Designed as an OEM-style semiconductor fuse replacement for blade-mount fuse holders rated to accept 400-amp, 130VAC or 1000VDC class fuses in the AMP-TRAP A13X series.

Installation Notes

Installation should be performed by a licensed electrician in accordance with the National Electrical Code (NEC). De-energize and lock out the equipment fully before removing or installing any fuse. Verify the fuse holder is rated for the blade bolt-in connection style and confirm both the AC and DC voltage ratings of the circuit are within the fuse specifications before closing up the panel. Do not attempt to clear or reset semiconductor fuses - they are single-use protective devices and must be replaced after any fault event.