MERSEN FUSE MB2 400A 4P 1.001.688 1.001.688

Why Choose the NH Fuse-Switch Disconnector MULTIBLOC® Size 2 400A 4-Pole?

The NH fuse-switch disconnector MULTIBLOC® Size 2 is engineered for reliable and efficient power distribution in demanding industrial environments. Rated at 400A with a robust 4-pole configuration, it is ideal for secure circuit isolation and overload protection within low-voltage applications.

This bottom-fitting, panel-mounted solution features a screw M10 terminal connection, ensuring durable and vibration-resistant wiring. Designed for ease of installation and long-term service, it supports safe, high-current switching and is compliant with stringent European standards.

Product Code: J1023071

Key Benefits

• Reliable circuit isolation and overload protection rated at 400A
• Robust 4-pole switching for enhanced safety and control
• Durable screw M10 terminal connections for secure wiring
• Bottom fitting/panel mounting for flexible installation
• Compliance with European safety and performance standards
• High short circuit current rating ensuring operational safety

Compatibility

This fuse-switch disconnector is compatible with NH fuse links Size 2 and designed to integrate seamlessly within IEC Fuse Switch Disconnector product groups. It supports AC systems up to 690 V and is suitable for use in industrial low-voltage distribution panels requiring 4-pole switching.

Applications

• Industrial power distribution and control panels
• Low-voltage electrical installations requiring reliable disconnection
• Overload and short-circuit protection in manufacturing plants
• Panel-mounted electrical switchgear assemblies
• Power distribution in commercial and infrastructure projects

Technical Specifications

• Item number: J1023071
• Catalogue No: 1.001.688
• Description: NH fuse-switch disconnector MULTIBLOC® Size 2 400A 4-Pole switching Bottom Fitting/panel Connection Screw M10
• EAN/UPC Code: 9008567002322
• 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
• Switchability: 4-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: 4-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: 274 mm
• Product Length: 138.5 mm
• Product Height: 259 mm
• Sell Pack Quantity: 1 EA
• Sell Pack Weight: 5.04 kg
• Sell Pack Width: 270 mm
• Sell Pack Length: 280 mm
• Sell Pack Height: 150 mm
• Product group: IEC Fuse Switch Disconnectors
• Conventional Free Air thermal Current With Fuse-Links Ith: 400 A
• Product Weight: 5.04 kg
• Conventional Free Air thermal Current - Solid Links: 630 A

Common Search Terms

NH fuse-switch disconnector, MULTIBLOC® Size 2, 400A fuse switch, 4-pole fuse switch, bottom fitting fuse switch, panel mounted fuse switch, screw M10 terminal fuse switch, IEC fuse switch disconnector, industrial fuse switch, low voltage fuse switch