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.