Mersen k331163 Modular Fuseholder 750V 2-pole Din-rail

Product Description

The MERSEN k331163 is a modular fuseholder designed to protect semiconductor devices in circuits operating up to 750 VAC and 1000 VDC. Built to the UltraSafe standard, it accepts IEC cylindrical fuses in the 22x58mm class and connects via pressure plate terminations. The two-pole, DIN-rail mounted design is sized for compact panel layouts and offers a finger-safe IP20 enclosure rating. Electrical contractors and panel builders working on drives, inverters, and UPS systems will find this holder suited to high-density control cabinet applications where space is limited and quick fuse access is required.

This fuseholder is intended for use in all circuits up to 750 VAC requiring semiconductor fuse protection. Typical applications include small inverters, UPS systems, and motor drives in both industrial and commercial installations. The DIN-rail mounting method integrates cleanly into standard control panels and distribution assemblies. Optional blown fuse indicator lights and optional microswitches are available as supplemental accessories for applications that require fault signaling or interlock functions.

Key Features

• Accepts IEC cylindrical 22x58mm semiconductor fuses
• Two-pole configuration with pressure plate connections
• DIN-rail mount with compact footprint for high-density panel layouts
• Finger-safe IP20 enclosure rating
• Quick fuse change-out design reduces service downtime
• Optional blown fuse indicator lights and microswitches available

Compatibility

Designed for use in circuits up to 750 VAC and 1000 VDC requiring IEC cylindrical 22x58mm semiconductor fuses, including applications such as small inverters, UPS systems, and motor drives.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the NEC and applicable local codes. De-energize and lock out the circuit before installing or servicing the fuseholder. Ensure the DIN-rail is properly grounded and that the fuse rating matches the circuit protection requirements before restoring power. Do not exceed the rated voltage or install fuse sizes outside the 22x58mm IEC cylindrical class.

Technical Specifications

• Voltage Rating (AC): 750 VAC
• Voltage Rating (DC): 1000 VDC
• Poles: 2
• Fuse Class: IEC Cylindrical 22x58mm
• Connection Type: Pressure Plate
• Mounting: DIN-Rail
• Enclosure Rating: IP20
• Type: UltraSafe
• Standards: UL Recognized Component per UL 4248-1 File E52283, CSA Certified C22.2 Class 6225 File 32169, IEC Compliant to 60269-2-1 and 60947-3

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: k331163