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MERSEN FUSE IEC UL508 Switch 16A 3p M163
Mersen M163 compact 16 A three-pole non-fused load break switch rated up to 600 V AC for industrial machinery, motor isolation and electrical control panels.
£21.62
Why Choose the Mersen M163 Load Break Switch?
The Mersen M163 is a compact and robust three-pole non-fused load break switch designed for reliable switching and electrical isolation in industrial control panels, machinery and motor applications. Rated at 16 A and capable of switching loads at up to 600 V AC, it provides a dependable means of disconnecting equipment from the electrical supply.
Part of the Mersen M-series, the M163 has been engineered to provide industrial-grade switching performance while occupying minimal space inside an enclosure. Its narrow modular construction makes it particularly suitable for control panels and machines where available mounting space is limited.
The M163 features a three-pole front-operated configuration with direct screw mounting. It can be used as a motor disconnect, branch-circuit switch or general electrical isolator when correctly selected and installed. A range of compatible shafts, handles and accessories allows the operating arrangement to be adapted to different enclosure designs.
Key Advantages
- Compact 16 A non-fused load break switch for industrial applications.
- Three-pole switching suitable for three-phase electrical circuits.
- Capable of switching loads at up to 600 V AC.
- Narrow modular construction helps conserve panel space.
- Suitable for use as a motor disconnect and electrical isolator.
- Compatible with a selection of operating handles, shafts and accessories.
Key Features
- Mersen M-series load break switch.
- 16 A rated operational current.
- 600 V AC maximum UL voltage rating.
- Three-pole non-fused configuration.
- Front-operated switching mechanism.
- Direct screw and base-mounting design.
- Double-break switching contacts.
- Suitable for industrial motor isolation.
Compact Electrical Isolation for Industrial Equipment
Load break switches provide a clearly defined method of switching electrical power on or off and isolating equipment before inspection, maintenance or repair. Unlike a fused switch disconnector, the Mersen M163 does not contain fuse links, so suitable upstream overcurrent protection must be provided separately.
Its compact construction makes the M163 suitable for installation close to motors, machinery and other industrial loads. When paired with the appropriate operating shaft and enclosure handle, it can form part of a door-coupled isolation system that improves operator safety and equipment accessibility.
Typical Applications
- Industrial machinery isolation.
- Three-phase motor disconnect systems.
- Electrical control panels.
- Automation and production equipment.
- Branch-circuit switching.
- OEM machine-building applications.
Technical Specifications
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| Current | 16 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse link | |
| Voltage | 600 V | |
| Manufacturer | Mersen | |
| Series | M-Series | |
| Model | M163 | |
| Product type | Non-fused load break switch | |
| Rated current | 16 A | |
| Maximum rated voltage | 600 V AC | |
| Number of poles | 3 | |
| Fuse protection | Non-fused | |
| Operation | Front operated | |
| Mounting type | Direct screw / base mounting | |
| Terminal type | Tunnel terminals | |
| Contact arrangement | Double break | |
| Approximate dimensions (H × W × D) | 68 × 22 × 55.8 mm | |
| Standard | UL 508 | |
| HS Code | 85363090 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the Mersen M163 used for?
The M163 is used to switch and isolate three-phase electrical circuits in industrial machinery, control panels and motor applications.
What is the current rating of the Mersen M163?
The Mersen M163 has a rated operational current of 16 A.
Is the Mersen M163 a fused switch?
No. The M163 is a non-fused load break switch, so appropriate upstream fuse or circuit-breaker protection must be provided separately.
How many poles does the Mersen M163 have?
The M163 has three switched poles, making it suitable for switching three-phase electrical circuits.
Can the Mersen M163 be used as a motor disconnect?
Yes. The M163 is suitable for use as a compact motor disconnect when its electrical ratings, accessories and installation arrangement meet the requirements of the application.
Trusted by Machine Builders and Panel Engineers
Mersen load break switches are used by machine builders, panel manufacturers and industrial engineers to provide compact, dependable switching and safe electrical isolation within modern control systems.
