MERSEN FUSE MB2 400A 3P 1.000.504 1.000.504

Why Choose the NH Fuse-Switch Disconnector MULTIBLOC® Size 2 400A 3-Pole?

Engineered for demanding industrial and commercial installations, the MULTIBLOC® Size 2 400A 3-pole fuse-switch disconnector delivers reliable circuit protection and isolation. Its robust bottom fitting and M10 panel connection screws ensure secure, vibration-resistant mounting in challenging environments.

This device simplifies maintenance with straightforward fuse replacement while providing excellent thermal and electrical performance. Optimised for efficient switching under load, it enhances safety and minimises downtime for critical systems.

Technical Specifications

• Item number: W1002129
• Catalogue No: 1.000.504
• Description: NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bottom Fitting/panel Connection Screw M10
• EAN/UPC Code: 4027597023393
• Frequency (Hz): 50 ... 60 Hz
• Rated voltage AC IEC: 690 V
• Ampere Rating: 400 A
• Utilization Category: AC 23 B @ Ue = AC 400 V; Ie = 400 A AC 22 B @ Ue = AC 500 V; Ie = 400 A AC 21 B @ Ue = AC 690 V; Ie = 315 A DC 21 B @ Ue = DC 440 V; Ie = 400 A
• Switchability: 3-pole switching
• RoHS Compliant: Yes
• AC or DC: AC
• Short Circuit Current Rating (SCCR): 80kA@Ue = AC 400 V; Ie = 400 A / 80kA@Ue = AC 500 V; Ie = 400 A / 80kA (3-pole)@Ue = AC 690 V; Ie = 315 A / 50kA (4-pole)@Ue = AC 690 V; Ie = 315 A
• Fuse Size: 2
• Number of Poles: 3-Pole
• Degree of Pollution: 3
• Rated Impulse Withstand Voltage: 12 kV
• Rated Insulation Voltage: 1000 V
• Rated SC Withstand: 13 kA / 1 s
• Max Power dissipation of Fuse Links Pn: 34 W
• Max Power dissipation of Solid Links Pn: 9 W
• Power Dissipation by Ith without Fuse-Links: 27 W
• Power Dissipation by Ith without Solid Links: 67 W
• Rated short circuit making capacity with solid links Icm: 10.6 kA
• Installation Mounting: Bottom Fitting/panel
• Product Width: 205 mm
• Product Length: 130 mm
• Product Height: 259 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 3.5 kg
• Sell Pack Width: 208 mm
• Sell Pack Length: 262 mm
• Sell Pack Height: 133 mm
• Product group: IEC Fuse Switch Disconnectors
• Conventional Free Air thermal Current With Fuse-Links Ith: 400 A
• Product Weight: 3.5 kg
• Conventional Free Air thermal Current - Solid Links: 630 A

Product Code: W1002129

Key Benefits

• Reliable circuit protection and isolation for industrial and commercial applications.
• Robust bottom fitting with M10 panel connection screws ensures secure and vibration-resistant mounting.
• Simple and safe fuse replacement for easy maintenance.
• Optimised for efficient switching under load to enhance operational safety.
• High short circuit current rating for superior fault tolerance.
• Complies with RoHS standards for environmental safety.

Compatibility

This fuse-switch disconnector is compatible with NH fuse links size 2 and designed for integration into IEC fuse switch disconnector panels and systems. It supports 3-pole switching and is suitable for use in AC systems up to 690 V.

Applications

• Industrial power distribution systems.
• Commercial electrical installations requiring reliable circuit isolation.
• Switchgear and control panels.
• Maintenance and safety isolation in manufacturing plants.
• Protection of motors, transformers, and other electrical equipment.

Common Search Terms

NH fuse switch disconnector, MULTIBLOC size 2, 400A fuse switch, 3-pole fuse switch, industrial fuse switch, IEC fuse switch disconnector, bottom fitting fuse switch, M10 panel connection fuse switch, high current fuse switch, electrical isolation switch