MERSEN FUSE MB1 250A 4P 1.000.405 1.000.405

Why Choose the NH Fuse-Switch Disconnector MULTIBLOC® Size 1 250A 4-Pole?

Engineered for reliable performance in challenging industrial environments, the NH fuse-switch disconnector MULTIBLOC® Size 1 supports up to 250A and features a robust 4-pole switching design for enhanced safety and operational flexibility. Bottom fitting and panel connection with M10 screw terminals provide secure, vibration-resistant installation, ensuring consistent connectivity in demanding applications.

Its compact construction and high-quality materials guarantee long service life and minimal maintenance, making it ideal for energy distribution panels and switchgear assemblies where dependable protection and quick isolation are essential.

Technical Specifications

• Item number: Y1023061
• Catalogue No: 1.000.405
• Description: NH fuse-switch disconnector MULTIBLOC® Size 1 250A 4-Pole switching Bottom Fitting/panel Connection Screw M10
• EAN/UPC Code: 4027597026813
• 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
• Switchability: 4-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: 4-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: 256 mm
• Product Length: 110.5 mm
• Product Height: 246 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 3.4 kg
• Sell Pack Width: 250 mm
• Sell Pack Length: 260 mm
• Sell Pack Height: 125 mm
• Product group: IEC Fuse Switch Disconnectors
• Conventional Free Air thermal Current With Fuse-Links Ith: 250 A
• Product Weight: 3.4 kg
• Conventional Free Air thermal Current - Solid Links: 400 A

Product Code: Y1023061

Key Benefits

• Reliable 4-pole switching for enhanced safety and operational flexibility
• Supports up to 250A with high short circuit current rating for robust protection
• Bottom fitting with M10 screw terminals ensures secure and vibration-resistant installation
• Compact design suitable for energy distribution panels and switchgear assemblies
• Low maintenance with durable construction for long service life

Compatibility

This NH fuse-switch disconnector is compatible with IEC fuse size 1 and designed for use in panels and switchgear assemblies requiring 4-pole switching and bottom fitting connections. It supports AC systems with rated voltages up to 690 V and is suitable for integration with standard industrial electrical components adhering to IEC standards.

Applications

• Industrial energy distribution panels
• Switchgear assemblies and control panels
• Protection and isolation in electrical installations
• Manufacturing and processing plants
• Commercial and infrastructure electrical systems

Common Search Terms

NH fuse-switch disconnector, MULTIBLOC Size 1, 250A fuse switch, 4-pole disconnector, IEC fuse switch, bottom fitting fuse switch, panel connection fuse switch, industrial fuse disconnector, M10 screw terminal fuse switch