MERSEN FUSE MB2 400A 3P 1.000.504 1.000.504

Reliable NH fuse-switch disconnector MULTIBLOC® Size 2 with 400A rating and 3-pole switching, designed for bottom fitting and panel mounting with M10 screws.

SKU: W1002129Alt SKU: 1.000.504MPN: W1002129

List Price £285.39 ex VAT

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£171.23 40% OFF

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SUBTOTAL (EX VAT) £171.23

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Manufacturer Lead Time

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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.

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.

Technical Specifications

Tick the specs you need, then view products that match.

Mounting Type	Base / panel
Current	400 A
Phase	Three Phase
Poles	3-pole
Device Type	Fuse switch disconnector
Voltage	690 V
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
HS Code	85365080
Country of Manufacture	Hungary

Frequently Asked Questions

What is the rated current of this fuse-switch disconnector?

The rated current is 400 A, suitable for demanding industrial and commercial applications.

Can this device be used in DC applications?

This model is designed primarily for AC applications as indicated by its AC rating and specifications.

What type of mounting does this product support?

It supports bottom fitting and panel mounting with M10 connection screws for secure installation.

Is the product RoHS compliant?

Yes, this fuse-switch disconnector complies with RoHS environmental standards.

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

Mounting Type	Base / panel
Current	400 A
Phase	Three Phase
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
HS Code	85365080
Country of Manufacture	Hungary
Poles	3-pole
Device Type	Fuse switch disconnector
Voltage	690 V

UK delivery

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