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MERSEN FUSE IEC UL508 Switch 63A 3p DM M633DM
Mersen M633DM UL508 non-fused 63 A three-pole door-mounted load break switch for motor disconnect, branch circuit switching and industrial electrical isolation.
£61.85
Why Choose the Mersen M633DM Door-Mounted Load Break Switch?
The Mersen M633DM is a compact industrial-grade UL 508 non-fused load break switch designed for reliable switching and electrical isolation within machinery, OEM equipment and industrial control panels. Rated at 63 A and suitable for operation up to 600 V AC, it provides a dependable solution for motor disconnect, branch circuit switching and line-of-sight isolation applications.
As part of the proven Mersen M-Series UL508 disconnect switch range, the M633DM features a door-mounted (DM) configuration that simplifies enclosure installation by allowing direct operation from the cabinet door without requiring a separate operating shaft. Its compact construction and rugged design make it ideal for panel builders and OEM machine manufacturers.
The M633DM features a three-pole configuration and is capable of making and breaking loads up to 600 V AC. Its non-fused design allows engineers to specify separate overcurrent protection while providing dependable manual switching and positive electrical isolation for industrial electrical systems.
Key Advantages
- Compact UL 508 non-fused load break switch.
- 63 A rated current for industrial machinery and distribution systems.
- Door-mounted (DM) configuration for simple enclosure installation.
- Three-pole configuration for three-phase electrical systems.
- Suitable for motor disconnect and branch circuit switching.
- Robust construction with padlockable operating accessories.
Key Features
- Mersen M-Series UL508 disconnect switch.
- 63 A rated operational current.
- 600 V AC maximum operating voltage.
- Three-pole non-fused design.
- Door-mounted (DM) installation.
- Box terminal connections.
- Double-break silver-plated contacts.
- Compatible with Mersen operating handles and accessories.
Reliable Door-Mounted Electrical Isolation
Door-mounted load break switches provide a safe and convenient means of disconnecting electrical equipment without opening the enclosure. This arrangement improves operator safety while providing a clearly defined isolation point before maintenance, servicing or inspection work begins.
The Mersen M633DM combines compact dimensions with dependable switching performance, making it well suited to industrial automation systems, machinery control panels and OEM electrical assemblies where reliable isolation and efficient use of enclosure space are essential.
Typical Applications
- Motor disconnect switches.
- Industrial machinery.
- OEM control panels.
- Branch circuit switching.
- Electrical isolation within switchboards.
- Industrial automation systems.
Technical Specifications
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| Current | 63 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse link | |
| Fuse Type | UL class | |
| Manufacturer | Mersen | |
| Series | M-Series UL508 Switches | |
| Model | M633DM | |
| Reference number | M1043176 | |
| Product type | UL 508 non-fused load break switch | |
| Rated current | 63 A | |
| Maximum operating voltage | 600 V AC | |
| Rated insulation voltage | 750 V | |
| Number of poles | 3 | |
| Mounting type | Door / panel mounted | |
| Terminal type | Box terminals | |
| Standards | UL 508, IEC 60947-3 | |
| RoHS compliant | Yes | |
| Typical dimensions (H × W × D) | Approx. 69 × 72 × 65 mm | |
| Typical weight | Approx. 0.28 kg |
Frequently Asked Questions
What is the Mersen M633DM used for?
The M633DM is used as a manual load break switch for switching and isolating electrical circuits, including motor disconnect and branch circuit applications.
What is the current rating of the M633DM?
The Mersen M633DM has a rated operational current of 63 A.
Is the M633DM a fused switch?
No. The M633DM is a non-fused UL 508 load break switch. Appropriate overcurrent protection should be provided separately.
What mounting arrangement does the M633DM use?
The M633DM is a door-mounted (DM) version designed for direct installation within electrical enclosure doors.
How many poles does the M633DM have?
The M633DM features a three-pole configuration for switching three-phase electrical circuits.
Trusted by Electrical Professionals Worldwide
Mersen UL508 disconnect switches are trusted by panel builders, OEMs and industrial electricians for dependable switching, compact installation and reliable electrical isolation across demanding industrial applications.
