MERSEN FUSE IEC Switch 2500A 3p 0+3 pos. M2500E03

MERSEN FUSE IEC Switch 2500A 3p 0+3 pos. M2500E03

Mersen M2500E03 2500 A three-pole IEC non-fused load break switch with a 0+3 configuration for high-current industrial power distribution and electrical isolation.

SKU: M2500E03MPN: M2500E03
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Why Choose the Mersen M2500E03 IEC Load Break Switch?

The Mersen M2500E03 is a heavy-duty 2,500 A three-pole IEC non-fused load break switch engineered for high-current switching and dependable electrical isolation in industrial low-voltage power distribution systems. Designed for demanding applications, it provides reliable load making, load breaking and manual isolation of substantial three-phase electrical circuits.

Featuring a 0+3 pole configuration, the M2500E03 simultaneously switches all three phase conductors while leaving no switched neutral pole. Its rugged construction and industrial operating mechanism make it suitable for installation within main switchboards, power distribution assemblies, generator systems and large industrial installations.

With a rated operational current of 2,500 A, the M2500E03 is designed for high-power applications including incoming supplies, major feeder circuits and heavy industrial equipment. As a non-fused switch, it is intended to be used with appropriately selected overcurrent protection devices to suit the installation requirements.

Key Advantages

  • Heavy-duty 2,500 A non-fused load break switch.
  • Three-pole 0+3 configuration for three-phase electrical systems.
  • Provides dependable load switching and electrical isolation.
  • Suitable for industrial low-voltage power distribution applications.
  • Allows separate selection of overcurrent protection devices.
  • Designed for high-current switchboards and distribution equipment.

Key Features

  • Mersen IEC load break switch.
  • 2,500 A rated operational current.
  • Three switched power poles.
  • 0+3 pole arrangement.
  • Non-fused switching configuration.
  • Load making, load breaking and isolation capability.
  • Heavy-duty industrial construction.
  • Designed for panel and switchboard installation.

Reliable High-Current Circuit Isolation

The Mersen M2500E03 provides a dependable means of switching and isolating high-current electrical circuits under normal operating conditions. Simultaneous switching of all three phases creates a clearly defined isolation point, improving safety during maintenance, inspection and servicing of industrial electrical equipment.

Because the M2500E03 is a non-fused load break switch, suitable upstream or downstream fuse protection or circuit breakers should be selected according to the fault level, cable sizing and protection requirements of the installation. This provides maximum flexibility when designing industrial power distribution systems.

Typical Applications

  • Main incoming industrial switchboards.
  • High-current power distribution systems.
  • Generator and transformer isolation.
  • Industrial process plants.
  • Large manufacturing facilities.
  • OEM power distribution assemblies.

Technical Specifications

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Current 2500 A
Phase Three Phase
Poles 3-pole
Device Type Fuse link
Manufacturer Mersen
Model M2500E03
Product type IEC non-fused load break switch
Rated operational current 2,500 A
Rated operating voltage Up to 1,000 V AC, subject to application ratings
DC voltage Up to 440 V DC, depending on configuration
Frequency 50 / 60 Hz
Number of poles 3
Pole configuration 0+3
Fuse protection Non-fused
Mounting type Base mounted
Terminal type Blade terminals
Switching function Load making, load breaking and circuit isolation
Compliance IEC 60947-3, RoHS compliant

Frequently Asked Questions

What is the Mersen M2500E03 used for?

The M2500E03 is used to switch and isolate high-current three-phase electrical circuits in industrial power distribution systems and large electrical installations.

What is the current rating of the M2500E03?

The Mersen M2500E03 has a rated operational current of 2,500 A.

What does the 0+3 configuration mean?

The 0+3 configuration indicates that the switch has three switched phase poles with no switched neutral pole.

Is the M2500E03 a fused load break switch?

No. The M2500E03 is a non-fused load break switch and requires suitable external overcurrent protection.

Where is the M2500E03 typically installed?

The switch is commonly installed in industrial switchboards, power distribution assemblies, generator systems and other high-current electrical installations.

Trusted by Industrial Power Engineers

Mersen IEC load break switches are specified by switchboard manufacturers, OEMs and industrial electrical engineers for dependable high-current switching, reliable circuit isolation and long service life in demanding power distribution applications.