MERSEN FUSE MB2 400A 3P 1.000.704 1.000.704

Robust three-pole fuse-switch disconnector for 40mm bus bar systems with 400A rating and M10 screw connections, suitable for AC/DC applications.

SKU: M1002167Alt SKU: 1.000.704MPN: M1002167

List Price £388.41 ex VAT

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£388.41

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Why Choose the NH fuse-switch disconnector MULTIBLOC® Size 2 400A?

Engineered for reliable power distribution, the NH fuse-switch disconnector MULTIBLOC® Size 2 400A provides robust three-pole switching for 40mm bus bar systems, ensuring safe isolation and protection in demanding industrial environments. The system accommodates up to 400A with secure M10 screw connections, delivering consistent performance and straightforward installation.

Ideal for panel builders and maintenance professionals, this unit supports efficient circuit protection and rapid fuse replacement, minimising downtime while meeting stringent UK safety and quality standards.

Product Code: M1002167

Key Benefits

Reliable three-pole switching for safe circuit isolation
Supports up to 400A current rating for robust applications
Compatible with 40mm bus bar systems for easy integration
Secure M10 screw connections ensure stable electrical contact
Facilitates rapid fuse replacement to minimise downtime
Meets UK safety and quality standards for industrial use
RoHS compliant for environmentally responsible installation

Compatibility

This fuse-switch disconnector is compatible with NH fuse size 2 and designed for use within IEC fuse switch disconnector systems. It integrates seamlessly with 40mm bus bar mounting systems and is suitable for both AC and DC power distribution setups up to 690 V AC and 440 V DC.

Applications

Industrial power distribution panels
Electrical switchgear assemblies
Panel building and electrical maintenance
Protection and isolation in manufacturing plants
Renewable energy system switchgear
Commercial and infrastructure electrical installations

Technical Specifications

Current	400 A
Phase	Three Phase
Item number	M1002167
Catalogue No	1.000.704
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bus bar system 40mm Connection Screw M10
EAN/UPC Code	4027597023409
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Rated voltage DC IEC	440 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/DC
Short Circuit Current Rating (SCCR)	80kA@Ue = AC 400 V; Ie = 400 A / 80kA@Ue = AC 500 V; Ie = 400 A / 80kA@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	60 W
Rated short circuit making capacity with solid links Icm	10.6 kA
Installation Mounting	Bus bar system 40 mm
Product Width	204.5 mm
Product Length	130.5 mm
Product Height	259 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	4.77 kg
Sell Pack Width	215 mm
Sell Pack Length	275 mm
Sell Pack Height	190 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	400 A
Product Weight	4.77 kg
Conventional Free Air thermal Current - Solid Links	530 A
HS Code	85365080
Country of Manufacture	Hungary
Poles	3-pole
Device Type	Fuse switch disconnector
Voltage	690 V

Frequently Asked Questions

What is the maximum current rating of this fuse-switch disconnector?

The NH fuse-switch disconnector MULTIBLOC® Size 2 supports a maximum current rating of 400 A.

Is this product suitable for DC applications?

Yes, it is rated for DC voltage up to 440 V IEC, making it suitable for both AC and DC applications.

What type of mounting does this device require?

This unit is designed for installation on a 40mm bus bar system.

Can I replace the fuses quickly during maintenance?

Yes, the design supports rapid fuse replacement to minimise downtime.

Common Search Terms

NH fuse switch disconnector, MULTIBLOC Size 2, 400A fuse switch, 3-pole fuse switch, 40mm bus bar fuse switch, industrial fuse switch, IEC fuse switch disconnector, M10 screw connection fuse switch, AC/DC fuse switch, electrical panel fuse switch

Current	400 A
Phase	Three Phase
Item number	M1002167
Catalogue No	1.000.704
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bus bar system 40mm Connection Screw M10
EAN/UPC Code	4027597023409
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Rated voltage DC IEC	440 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/DC
Short Circuit Current Rating (SCCR)	80kA@Ue = AC 400 V; Ie = 400 A / 80kA@Ue = AC 500 V; Ie = 400 A / 80kA@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	60 W
Rated short circuit making capacity with solid links Icm	10.6 kA
Installation Mounting	Bus bar system 40 mm
Product Width	204.5 mm
Product Length	130.5 mm
Product Height	259 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	4.77 kg
Sell Pack Width	215 mm
Sell Pack Length	275 mm
Sell Pack Height	190 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	400 A
Product Weight	4.77 kg
Conventional Free Air thermal Current - Solid Links	530 A
HS Code	85365080
Country of Manufacture	Hungary
Poles	3-pole
Device Type	Fuse switch disconnector
Voltage	690 V

UK delivery

Delivery options

Free UK delivery on orders over £200 ex VAT. Order in-stock items before 2pm Monday to Friday for next-day delivery.

This product Lead time on request

Please contact us for a delivery time before you order

Standard delivery

£8 ex VAT · free over £200

UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.

Heavier items may be charged at a weight-based or pallet rate, shown at checkout.

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Mon–Fri, 8am–5pm

Order and pay online, then collect from our showroom.

Please allow 15–30 minutes after ordering for us to prepare your order.

Northern Ireland, ROI & export

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Delivery is calculated at checkout based on your destination.

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Need to return an item? Find the guidance for your order below, then contact our team before sending anything back.

Stocked items

Request within 30 days

Changed your mind or ordered the wrong item? Request a return within 30 days of receipt. There is no restocking charge.

Items must be unused, in resalable condition and in their original packaging, and returns need our approval first. Return carriage is at your cost, and the original delivery charge is not refunded.

Faulty or damaged items

Tell us as soon as possible

Faulty, damaged on delivery or the wrong product supplied? Contact our team as soon as possible with the details.

We will review the issue and arrange an appropriate resolution under our terms and conditions and your statutory rights.

Made-to-order items

Manufacturer approval needed

Manufactured, configured and special-order products can only be returned with the manufacturer’s approval. Any handling charge is agreed with you when you request the return.

This does not affect claims for faulty goods or items that do not meet the agreed specification.

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Send your order number, product details and reason for return. For faults or delivery damage, include photographs if available. We will confirm the next steps.

Email returns team 01706 242050

The 30-day return request period applies to change-of-mind returns for stocked items. It does not limit your statutory rights for faulty or non-conforming goods.

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