MERSEN FUSE MB1 250A 1P 1.000.388 1.000.388

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

This robust 1-pole switch disconnector is engineered for reliable and safe circuit isolation in demanding industrial applications. Supporting up to 250A, it features a bottom-fitting, panel-mount design and secure screw M10 connections for efficient installation and maintenance.

Designed with NH technology, the MULTIBLOC® Size 1 unit ensures precise fuse switching and enhanced operational safety. Its high-quality build guarantees long-term performance, making it an optimum choice for professionals seeking dependable protection and easy integration within control panels.

Technical Specifications

• Item number: Q229876
• Catalogue No: 1.000.388
• Description: NH fuse-switch disconnector MULTIBLOC® Size 1 250A 1-pole switching Bottom Fitting/panel Connection Screw M10
• EAN/UPC Code: 4027597026776
• 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 22 B @ Ue = DC 220 V; Ie = 250 A
• Switchability: 1-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: 1-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: 4 W
• Power Dissipation by Ith without Solid Links: 10 W
• Rated short circuit making capacity with solid links Icm: 8.2 kA
• Installation Mounting: Bottom Fitting/panel
• Product Width: 71 mm
• Product Length: 110.5 mm
• Product Height: 246 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 1 kg
• Sell Pack Width: 79 mm
• Sell Pack Length: 246 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: 1 kg
• Conventional Free Air thermal Current - Solid Links: 400 A

Product Code: Q229876

Key Benefits

• Reliable and safe circuit isolation for industrial environments
• Supports up to 250A with precise 1-pole switching
• Bottom fitting panel mount for easy installation
• Secure screw M10 connections for durable and stable wiring
• High-quality NH fuse technology for enhanced operational safety
• Compact design with dimensions suitable for control panel integration

Compatibility

This NH fuse-switch disconnector is compatible with Size 1 NH fuses and designed to integrate seamlessly into IEC fuse switch disconnector systems. It is suitable for use with AC electrical systems up to 690 V and can be installed in panels requiring bottom fitting mounting configurations.

Applications

• Industrial control panels requiring reliable circuit isolation
• Electrical distribution systems in commercial and industrial buildings
• Protection of motors, transformers, and other electrical equipment
• Use in manufacturing plants and heavy machinery installations
• Switching and protection in power distribution networks

Common Search Terms

NH fuse switch disconnector, MULTIBLOC® Size 1, 250A fuse switch, industrial fuse switch, bottom fitting fuse switch, panel mount fuse switch, IEC fuse switch disconnector, screw M10 connection fuse switch