MERSEN FUSE MB1 250A 3P 1.001.294 1.001.294

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

The NH fuse-switch disconnector MULTIBLOC® Size 1 250A offers robust 3-pole switching for bus bar systems (40mm), ensuring reliable circuit protection in industrial and commercial applications. Its design supports high operational safety and easy integration within modular power distribution assemblies.

Featuring dependable clamp strap connections, it guarantees secure and efficient installation, minimising downtime during maintenance. Engineered for durability and compliance with stringent standards, this unit is ideal for demanding environments requiring precise and stable power distribution.

Technical Specifications

• Item number: Q1023054
• Catalogue No: 1.001.294
• Description: NH fuse-switch disconnector MULTIBLOC® Size 1 250A 3-Pole switching Bus bar system 40mm Connection Clamp Strap clamp straps
• EAN/UPC Code: 9008567002155
• Frequency (Hz): 50 ... 60 Hz
• Rated voltage AC IEC: 690 V
• Rated voltage DC IEC: 440 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
• RoHS Compliant: Yes
• AC or DC: AC/DC
• Short Circuit Current Rating (SCCR): 80kA@Ue = AC 400 V; Ie = 250 A / 80kA@Ue = AC 500 V; Ie = 250 A / 50kA (3-,4-pole)@Ue = AC 690 V; Ie = 200 A
• Fuse Size: 1
• Design Details: Clamp Strap
• 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: 20 W
• Rated short circuit making capacity with solid links Icm: 8.2 kA
• Installation Mounting: Bus bar system 40 mm and 60 mm
• Product Width: 185 mm
• Product Length: 110.5 mm
• Product Height: 246 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 3.06 kg
• Sell Pack Width: 187 mm
• Sell Pack Length: 248 mm
• Sell Pack Height: 165 mm
• Product group: IEC Fuse Switch Disconnectors
• Conventional Free Air thermal Current With Fuse-Links Ith: 250 A
• Product Weight: 3.06 kg
• Conventional Free Air thermal Current - Solid Links: 400 A

Product Code: Q1023054

Key Benefits

• Reliable 3-pole switching for enhanced circuit protection.
• Compatible with bus bar systems of 40 mm and 60 mm for flexible installation.
• Clamp strap connection ensures secure and easy mounting.
• High short circuit current rating up to 80kA for safety under fault conditions.
• Designed for both AC and DC applications, increasing versatility.
• RoHS compliant, meeting environmental and safety standards.
• Compact dimensions for efficient space utilisation in power distribution panels.

Compatibility

This fuse-switch disconnector is compatible with IEC standard fuse links size 1 and is designed to integrate seamlessly with modular bus bar systems of 40 mm and 60 mm widths. It supports a range of voltages up to 690 V AC and 440 V DC, making it suitable for various industrial and commercial electrical installations.

Applications

• Industrial power distribution and control panels.
• Commercial electrical installations requiring high safety standards.
• Modular bus bar systems in factories and manufacturing plants.
• Maintenance and service circuits where quick disconnection is essential.
• Renewable energy systems requiring reliable fuse protection.

Common Search Terms

NH fuse-switch disconnector, MULTIBLOC fuse switch, 250A fuse switch, 3-pole fuse switch, bus bar fuse switch 40mm, clamp strap fuse switch, IEC fuse switch disconnector, industrial fuse switch, high SCCR fuse switch, AC/DC fuse switch