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MERSEN FUSE IEC UL98 Switch 100A 3p DM M100U3DM
Mersen M100U3DM UL 98 door-mounted non-fusible disconnect switch rated at 100 A and 600 V AC with a three-pole configuration for industrial load switching and electrical isolation.
£113.36
Why Choose the Mersen M100U3DM UL 98 Door-Mounted Disconnect Switch?
The Mersen M100U3DM is a heavy-duty UL 98 non-fusible disconnect switch designed for reliable load switching and electrical isolation in demanding industrial and commercial installations. Rated at 100 A and 600 V AC, this three-pole switch is suitable for controlling and isolating three-phase power circuits.
The M100U3DM features a dedicated door-mounted configuration, allowing the switching assembly to be fitted directly to a compatible electrical enclosure door. This arrangement provides a compact installation and straightforward access while maintaining dependable switching performance for machinery, distribution panels and industrial control systems.
Designed to meet the requirements of UL 98, the Mersen M100U3DM can make and break power circuits under load and is approved for demanding applications, including service entrance installations. Its robust construction, silver-plated contacts and double-break switching mechanism help provide reliable operation and long service life.
Key Advantages
- Heavy-duty 100 A UL 98 non-fusible disconnect switch.
- 600 V AC maximum operating voltage for industrial power systems.
- Three-pole configuration for three-phase circuit isolation.
- Purpose-designed door-mounted construction.
- Suitable for making and breaking power circuits under load.
- Approved for demanding applications, including service entrance installations.
Key Features
- Mersen UL 98 non-fusible switch series.
- 100 A rated operational current.
- 600 V AC voltage rating.
- Three mechanically linked switching poles.
- Front-operated door-mounted configuration.
- Double-break switching mechanism.
- Silver-plated contacts for dependable conductivity.
- Compatible with selected Mersen handles and switch accessories.
Reliable Door-Mounted Power Isolation
A door-mounted disconnect switch provides a compact method of integrating load switching and isolation directly into an electrical enclosure. The Mersen M100U3DM allows operators to disconnect equipment from its power supply before inspection, servicing or maintenance procedures are carried out.
Its UL 98 construction enables the switch to make and break power circuits under load. The robust double-break contacts and mechanically linked poles provide simultaneous disconnection of all three phases, supporting safe and dependable operation in industrial power applications.
Typical Applications
- Industrial machinery disconnect systems.
- Electrical control panels and cabinets.
- Service entrance equipment.
- Motor control centres.
- OEM machinery and automation systems.
- Commercial and industrial power distribution panels.
Technical Specifications
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| Current | 100 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Accessory | |
| Manufacturer | Mersen | |
| Series | UL 98 Non-Fusible Switches | |
| Model | M100U3DM | |
| Product type | Non-fusible disconnect switch | |
| Rated current | 100 A | |
| Maximum operating voltage | 600 V AC | |
| Number of poles | 3 | |
| Mounting configuration | Door mounted | |
| Operating position | Front operated | |
| Switching function | Load breaking and electrical isolation | |
| Contact design | Double break | |
| Contact material | Silver plated | |
| Applicable standard | UL 98 | |
| Service entrance suitability | Yes | |
| Short-circuit current rating | Up to 100 kA at 480 V AC when correctly protected with compatible Class J fuses | |
| Typical horsepower ratings | 30 hp at 240 V AC, 50 hp at 480 V AC and 50 hp at 600 V AC | |
| HS Code | 85363090 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the Mersen M100U3DM used for?
The M100U3DM is used to make, break and isolate three-phase power circuits in industrial machinery, control panels, distribution equipment and service entrance applications.
What is the current rating of the M100U3DM?
The switch has a continuous current rating of 100 A.
What voltage is the M100U3DM rated for?
The Mersen M100U3DM is rated for electrical systems operating at up to 600 V AC.
How is the M100U3DM mounted?
The M100U3DM features a door-mounted configuration designed for installation on a compatible electrical enclosure door.
Does the M100U3DM include fuse protection?
No. The M100U3DM is a non-fusible disconnect switch. Suitable overcurrent protection must be provided separately according to the electrical system design.
Trusted for Industrial Power Isolation
Mersen UL 98 disconnect switches are used by panel builders, OEMs and electrical engineers to provide dependable load switching and positive electrical isolation across demanding industrial and commercial installations.
