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MERSEN FUSE IEC UL508 Switch 25A 3p M253
Mersen M253 25 A three-pole non-fused UL508 load break switch with direct screw mounting for industrial electrical isolation and motor disconnect applications.
£25.84
Why Choose the Mersen M253 Load Break Switch?
The Mersen M253 is a compact 25 A three-pole non-fused load break switch engineered for reliable switching and electrical isolation in industrial control panels, machinery and motor applications. As part of the proven Mersen UL508 Switch Series, it is capable of making and breaking loads up to 600 V AC and is suitable for use as a motor disconnect or branch-circuit switch.
Designed with a direct screw mounting arrangement, the M253 offers a compact footprint without compromising durability. Its industrial-grade construction and double-break contact design ensure dependable operation, while compatibility with a wide range of handles, shafts and accessories allows it to be adapted for virtually any panel configuration.
With a 25 A current rating, three-pole configuration and UL508 compliance, the M253 is ideal for OEM machinery, industrial automation systems and electrical control panels requiring dependable manual isolation and switching performance.
Key Advantages
- Compact 25 A non-fused load break switch.
- Three-pole switching for three-phase electrical systems.
- Rated for operation up to 600 V AC (UL).
- Suitable for motor disconnect and branch-circuit switching.
- Direct screw mounting simplifies installation.
- Compatible with Mersen handles, shafts and auxiliary accessories.
Key Features
- Mersen UL508 Switch Series.
- 25 A rated operational current.
- 600 V AC UL voltage rating.
- Three-pole non-fused configuration.
- Direct screw mounting.
- Double-break silver-plated contacts.
- Compact industrial design.
- Suitable for motor isolation and electrical disconnect applications.
Reliable Isolation for Industrial Control Systems
The M253 provides a safe and dependable means of switching and isolating industrial electrical circuits before maintenance or servicing. As a non-fused disconnect switch, it should be installed alongside suitable upstream overcurrent protection while providing a clear and reliable point of isolation for industrial equipment.
Its compact dimensions make it particularly suitable for modern control panels where installation space is limited. The availability of multiple mounting options and operating accessories enables the switch to be integrated into a wide variety of machine and panel designs.
Typical Applications
- Industrial control panels.
- Motor disconnect applications.
- OEM machinery.
- Electrical isolation.
- Branch-circuit switching.
- Industrial automation equipment.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse link | |
| Voltage | 600 V | |
| Manufacturer | Mersen | |
| Series | UL508 Switch | |
| Model | M253 | |
| Product type | Non-fused load break switch | |
| Rated current | 25 A | |
| Rated voltage | 600 V AC (UL) | |
| Rated voltage DC | 0 V | |
| Number of poles | 3 | |
| Mounting type | Direct screw mount | |
| Operation | Front operated | |
| RoHS compliant | Yes | |
| EAN | 3605340557428 | |
| Maximum horsepower | Up to 20 HP at 600 V three-phase | |
| HS Code | 85363090 | |
| Country of Manufacture | Finland |
Frequently Asked Questions
What is the Mersen M253 used for?
The M253 is used for switching and isolating industrial electrical circuits and can also serve as a motor disconnect in accordance with its electrical ratings.
What is the current rating of the M253?
The Mersen M253 has a rated operational current of 25 A.
Is the M253 a fused disconnect switch?
No. The M253 is a non-fused load break switch and requires suitable upstream overcurrent protection.
How many poles does the M253 have?
The switch has three switched poles, making it suitable for three-phase electrical systems.
Can the M253 be used as a motor disconnect?
Yes. The M253 is designed for motor disconnect and branch-circuit switching applications within its published electrical ratings.
Trusted by Machine Builders and Panel Manufacturers
Mersen UL508 load break switches are trusted worldwide by OEM machine builders, panel manufacturers and industrial engineers for dependable electrical isolation, compact installation and long-term reliability.
