MERSEN FUSE MB2 400A 3P 1.002.563 1.002.563

Engineered for reliability in demanding industrial applications, the MULTIBLOC® Size 2 fuse-switch disconnector enables safe and efficient power distribution up to 400A in three-phase systems. Designed for bottom fitting with panel connection, it ensures secure clamp strap installation and easy integration within switchboards and distribution panels.

SKU: G1023069Alt SKU: 1.002.563MPN: G1023069

List Price £368.83 ex VAT

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£368.83

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Manufacturer Lead Time

£368.83

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

Featuring robust construction and precise switching performance, this device minimises downtime and enhances operator safety during maintenance or fault clearing, making it a trusted solution for professional power management demands.

Product Code: G1023069

Key Benefits

Reliable power distribution up to 400A in three-phase systems
Secure clamp strap installation for enhanced safety
Bottom fitting design for easy panel integration
Robust construction minimises downtime and maintenance risks
Compliant with RoHS standards ensuring environmental safety

Compatibility

This NH fuse-switch disconnector is compatible with IEC Fuse Switch Disconnectors systems and designed for use in switchboards and distribution panels requiring 3-pole switching at rated voltages up to 690 V AC. It supports fuse size 2 and is suitable for applications with utilisation categories AC 21 B, AC 22 B, and AC 23 B.

Applications

Industrial power distribution and control panels
Switchboards requiring secure and reliable fuse-switch disconnectors
Maintenance and fault clearing in three-phase electrical systems
Bottom fitting panel installations in commercial and industrial settings

Technical Specifications

Current	400 A
Phase	Three Phase
Item number	G1023069
Catalogue No	1.002.563
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bottom Fitting/panel Connection Clamp Strap clamp straps
EAN/UPC Code	9008567001646
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

Frequently Asked Questions

What is the rated voltage for this fuse-switch disconnector?

The rated voltage AC IEC for this product is 690 V.

Can this device be used in DC applications?

This model is designed primarily for AC applications; however, it has a utilisation category for DC 21 B at DC 440 V with an Ie of 400 A.

What type of mounting does this fuse-switch disconnector support?

It supports bottom fitting mounting suitable for panel connection.

Is this product RoHS compliant?

Yes, the product is RoHS compliant.

What is the short circuit current rating (SCCR)?

The SCCR is 80kA at AC 400 V and AC 500 V for 400 A, 80kA (3-pole) at AC 690 V for 315 A, and 50kA (4-pole) at AC 690 V for 315 A.

Common Search Terms

NH fuse-switch disconnector, MULTIBLOC® Size 2, 400A fuse switch, 3-pole disconnector, bottom fitting fuse switch, panel connection fuse switch, clamp strap fuse switch, IEC fuse switch disconnectors, industrial fuse switch, power distribution fuse switch

Current	400 A
Phase	Three Phase
Item number	G1023069
Catalogue No	1.002.563
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bottom Fitting/panel Connection Clamp Strap clamp straps
EAN/UPC Code	9008567001646
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

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.

Collect from our showroom

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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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

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