MERSEN FUSE MB1 250A 3P 1.002.562 1.002.562

Why Choose the NH Fuse-Switch Disconnector MULTIBLOC® Size 1 250A 3-Pole?

Engineered for reliable power distribution, the MULTIBLOC® Size 1 250A 3-pole fuse-switch disconnector provides secure, high-capacity circuit protection and isolation for industrial installations. Its robust bottom fitting and clamp strap connection ensure optimal conductivity and safe panel mounting.

This unit is designed for efficient installation while supporting fast, safe fuse changes and maintenance. Suitable for demanding three-phase applications, it maximises uptime and safety in harsh or high-load environments.

Product Code: W1023059

Key Benefits

• High current rating of 250A suitable for demanding industrial applications.
• Robust bottom fitting and clamp strap design for secure and reliable panel mounting.
• Supports fast and safe fuse replacement to reduce downtime.
• Designed for three-pole switching ensuring effective isolation in three-phase systems.
• High short circuit current rating (up to 80kA) for enhanced safety and protection.
• Compact dimensions facilitating integration into existing switchgear assemblies.

Compatibility

This fuse-switch disconnector is compatible with NH Size 1 fuse links and solid links designed for IEC Fuse Switch Disconnectors. It is suitable for use in industrial power distribution panels requiring 3-pole switching at voltages up to 690 V AC and frequencies of 50 to 60 Hz.

Applications

• Industrial power distribution and control panels.
• Protection and isolation in three-phase electrical installations.
• Switchgear assemblies requiring reliable fuse-switch disconnectors.
• Heavy machinery and motor protection circuits.
• Renewable energy systems with high current demands.

Technical Specifications

• Item number: W1023059
• Catalogue No: 1.002.562
• Description: NH fuse-switch disconnector MULTIBLOC® Size 1 250A 3-Pole switching Bottom Fitting/panel Connection Clamp Strap clamp straps
• EAN/UPC Code: 9008567001639
• Frequency (Hz): 50 ... 60 Hz
• Rated voltage AC IEC: 690 V
• Ampere Rating: 250 A
• Utilization Category: AC 23 B @ Ue = AC 400 V; Ie = 250 A AC 22 B @ Ue = AC 500 V; Ie = 250 A AC 21 B @ Ue = AC 690 V; Ie = 200 A DC 21 B @ Ue = DC 440 V; Ie = 250 A
• Switchability: 3-pole switching
• AC or DC: AC
• Short Circuit Current Rating (SCCR): 80kA@Ue=AC 400 V;Ie=250 A / 80kA@Ue=AC 500 V;Ie=250 A / 80kA (1-,2-pole)@Ue=AC 690 V;Ie=200 A / 50kA (3-,4-pole)@Ue=AC 690 V;Ie=200 A
• Fuse Size: 1
• Number of Poles: 3-Pole
• Degree of Pollution: 3
• Rated Impulse Withstand Voltage: 12 kV
• Rated Insulation Voltage: 1000 V
• Rated SC Withstand: 8 kA / 1 s
• Max Power dissipation of Fuse Links Pn: 23 W
• Max Power dissipation of Solid Links Pn: 2.6 W
• Power Dissipation by Ith without Fuse-Links: 13 W
• Power Dissipation by Ith without Solid Links: 33 W
• Rated short circuit making capacity with solid links Icm: 8.2 kA
• Installation Mounting: Bottom Fitting/panel
• Product Width: 185 mm
• Product Length: 110.5 mm
• Product Height: 246 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 2.42 kg
• Sell Pack Width: 187 mm
• Sell Pack Length: 248 mm
• Sell Pack Height: 112 mm
• Product group: IEC Fuse Switch Disconnectors
• Conventional Free Air thermal Current With Fuse-Links Ith: 250 A
• Product Weight: 2.42 kg
• Conventional Free Air thermal Current - Solid Links: 400 A

Common Search Terms

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