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.
£5,076.58
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.
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.
| Current | 2500 A |
|---|---|
| Phase | Three Phase |
| 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 |
The M2500E03 is used to switch and isolate high-current three-phase electrical circuits in industrial power distribution systems and large electrical installations.
The Mersen M2500E03 has a rated operational current of 2,500 A.
The 0+3 configuration indicates that the switch has three switched phase poles with no switched neutral pole.
No. The M2500E03 is a non-fused load break switch and requires suitable external overcurrent protection.
The switch is commonly installed in industrial switchboards, power distribution assemblies, generator systems and other high-current electrical installations.
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.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...