MERSEN FUSE IEC Switch 250A 3p 0+3 pos. M250E03

MERSEN FUSE IEC Switch 250A 3p 0+3 pos. M250E03

Mersen M250E03 250 A three-pole IEC non-fused load break switch with a 0+3 configuration for industrial power distribution and electrical isolation.

SKU: M250E03MPN: M250E03
Price
List Price £356.91 ex VAT
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Why Choose the Mersen M250E03 IEC Load Break Switch?

The Mersen M250E03 is a heavy-duty 250 A three-pole IEC non-fused load break switch designed for reliable switching and isolation of low-voltage industrial power circuits. Featuring a 0+3 pole configuration, it provides dependable load making, load breaking and manual isolation for demanding power distribution applications.

Engineered for industrial switchboards, power distribution assemblies and OEM equipment, the M250E03 combines a compact footprint with robust construction, making it ideal for installations where dependable switching performance and long service life are essential. As a non-fused switch, it allows engineers to specify separate overcurrent protection devices that match the installation requirements.

With a rated operational current of 250 A, the M250E03 is suitable for incoming supplies, feeder circuits, motor control centres and industrial machinery. Its three-pole design simultaneously isolates all phase conductors, providing a clearly defined point of electrical isolation during maintenance and servicing.

Key Advantages

  • Heavy-duty 250 A IEC load break switch.
  • Three-pole 0+3 configuration for three-phase installations.
  • Provides reliable load switching and electrical isolation.
  • Non-fused design allows application-specific overcurrent protection.
  • Suitable for industrial switchboards and distribution systems.
  • Compact, durable construction for demanding environments.

Key Features

  • Mersen IEC non-fused load break switch.
  • 250 A rated operational current.
  • Three switched poles.
  • 0+3 pole arrangement.
  • Designed for load making and load breaking.
  • Manual electrical isolation capability.
  • Industrial switchboard mounting.
  • Complies with IEC switching requirements.

Reliable Switching for Industrial Power Distribution

The M250E03 provides a safe and reliable means of switching and isolating industrial electrical circuits during normal operating conditions. Simultaneous disconnection of all three phase conductors helps improve maintenance safety while reducing downtime during planned servicing.

Because the M250E03 is supplied as a non-fused load break switch, suitable upstream or downstream overcurrent protection should be selected according to the installation's fault level, conductor sizing and protection requirements. This provides maximum flexibility for industrial electrical designers and panel builders.

Typical Applications

  • Industrial switchboards.
  • Power distribution systems.
  • Motor control centres.
  • OEM machinery.
  • Generator and transformer isolation.
  • Industrial manufacturing facilities.

Technical Specifications

Current 250 A
Phase Three Phase
Manufacturer Mersen
Model M250E03
Product type IEC non-fused load break switch
Rated operational current 250 A
Rated operating voltage Up to 1000 V AC (application dependent)
DC voltage Up to 440 V DC (configuration dependent)
Frequency 50 / 60 Hz
Number of poles 3
Pole configuration 0+3
Fuse protection Non-fused
Mounting type Base mounted
Applicable standard IEC 60947-3
Poles 3-pole
Device Type Fuse link

Frequently Asked Questions

What is the Mersen M250E03 used for?

The M250E03 is used for switching and isolating three-phase electrical circuits in industrial power distribution systems, switchboards and machinery.

What is the current rating of the M250E03?

The Mersen M250E03 has a rated operational current of 250 A.

What does the 0+3 pole configuration mean?

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

Is the M250E03 a fused switch?

No. The M250E03 is a non-fused IEC load break switch and requires separate overcurrent protection using suitable fuses or circuit breakers.

Where is the M250E03 typically installed?

The switch is commonly installed in industrial switchboards, power distribution assemblies, motor control centres and OEM electrical equipment.

Trusted by Industrial Power Engineers

Mersen IEC load break switches are trusted by switchboard manufacturers, OEMs and electrical engineers for dependable circuit isolation, reliable switching performance and long-term durability in demanding industrial environments.

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