MERSEN FUSE MB3 630A 4P 1.001.904 1.001.904

Robust NH fuse-switch disconnector with 630A rating, 4-pole switching, bottom fitting and panel connection using M12 screw terminals for reliable industrial power distribution.

SKU: N1023075Alt SKU: 1.001.904MPN: N1023075

List Price £1,233.72 ex VAT

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Manufacturer Lead Time

£740.23

Why Choose the NH fuse-switch disconnector MULTIBLOC® Size 3 630A 3-Pole+N?

Engineered for robust industrial protection, the MULTIBLOC® Size 3 630A 3-Pole+N fuse-switch disconnector ensures reliable isolation and safe load switching in demanding low-voltage applications. Its bottom fitting and secure panel connection, utilising M12 screw terminals, enable straightforward, durable installation.

This device supports high-capacity operations up to 630A, offering long-term performance, minimal maintenance, and compliance with stringent safety standards. Ideal for professionals seeking efficiency and reliability in power distribution systems.

Product Code: N1023075

Key Benefits

High current rating of 630A suitable for demanding industrial applications.
Reliable 4-pole switching with neutral for comprehensive isolation.
Robust bottom fitting and panel connection with M12 screw terminals for secure installation.
Compliance with IEC standards ensuring safety and performance.
High short circuit current rating up to 80kA for enhanced protection.
Low maintenance design with durable construction for long service life.

Compatibility

This fuse-switch disconnector is compatible with NH fuse links size 3 and designed for use in low-voltage power distribution systems. It fits standard panel cut-outs and works efficiently with IEC Fuse Switch Disconnectors product group components.

Applications

Industrial power distribution and control panels.
Electrical isolation and protection in manufacturing plants.
Switching and protection in commercial electrical installations.
Maintenance and safety isolation in electrical networks.

Technical Specifications

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Mounting Type	Base / panel
Current	630 A
Phase	Three Phase
Poles	4-pole
Device Type	Fuse switch disconnector
Voltage	690 V
Item number	N1023075
Catalogue No	1.001.904
Description	NH fuse-switch disconnector MULTIBLOC® Size 3 630A 3-Pole+N switching Bottom Fitting/panel Connection Screw M12
EAN/UPC Code	9008567002377
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Ampere Rating	630 A
Utilization Category	AC 23 B @ Ue = AC 400 V; Ie = 630 A AC 22 B @ Ue = AC 500 V; Ie = 630 A AC 21 B @ Ue = AC 690 V; Ie = 500 A
Switchability	4-pole switching
RoHS Compliant	Yes
AC or DC	AC
Short Circuit Current Rating (SCCR)	80kA@Ue = AC 400 V; Ie = 630 A / 80kA@Ue = AC 500 V; Ie = 630 A / 50kA@Ue = AC 690 V; Ie = 500 A
Fuse Size	3
Number of Poles	4-Pole
Degree of Pollution	3
Rated Impulse Withstand Voltage	12 kV
Rated Insulation Voltage	1000 V
Rated SC Withstand	18 kA / 1 s
Max Power dissipation of Fuse Links Pn	48 W
Max Power dissipation of Solid Links Pn	17.5 W
Power Dissipation by Ith without Fuse-Links	53 W
Power Dissipation by Ith without Solid Links	81 W
Rated short circuit making capacity with solid links Icm	18.6 kA
Installation Mounting	Bottom Fitting/panel
Product Width	331.5 mm
Product Length	153.9 mm
Product Height	299 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	7.44 kg
Sell Pack Width	330 mm
Sell Pack Length	355 mm
Sell Pack Height	190 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	630 A
Product Weight	7.44 kg
Conventional Free Air thermal Current - Solid Links	780 A
HS Code	85365080
Country of Manufacture	Hungary

Frequently Asked Questions

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

The maximum ampere rating is 630A, suitable for high-capacity industrial applications.

Can this device be used for DC applications?

No, this product is designed for AC applications only.

What type of fuse links does it support?

It supports NH fuse links size 3.

How is the device installed?

It is installed using bottom fitting with panel connection via M12 screw terminals.

Common Search Terms

NH fuse switch disconnector, MULTIBLOC Size 3, 630A fuse switch, 4-pole fuse switch, IEC fuse switch disconnector, industrial fuse switch, panel mount fuse switch, bottom fitting fuse switch, high current fuse switch, 3-pole plus neutral fuse switch

Mounting Type	Base / panel
Current	630 A
Phase	Three Phase
Item number	N1023075
Catalogue No	1.001.904
Description	NH fuse-switch disconnector MULTIBLOC® Size 3 630A 3-Pole+N switching Bottom Fitting/panel Connection Screw M12
EAN/UPC Code	9008567002377
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Ampere Rating	630 A
Utilization Category	AC 23 B @ Ue = AC 400 V; Ie = 630 A AC 22 B @ Ue = AC 500 V; Ie = 630 A AC 21 B @ Ue = AC 690 V; Ie = 500 A
Switchability	4-pole switching
RoHS Compliant	Yes
AC or DC	AC
Short Circuit Current Rating (SCCR)	80kA@Ue = AC 400 V; Ie = 630 A / 80kA@Ue = AC 500 V; Ie = 630 A / 50kA@Ue = AC 690 V; Ie = 500 A
Fuse Size	3
Number of Poles	4-Pole
Degree of Pollution	3
Rated Impulse Withstand Voltage	12 kV
Rated Insulation Voltage	1000 V
Rated SC Withstand	18 kA / 1 s
Max Power dissipation of Fuse Links Pn	48 W
Max Power dissipation of Solid Links Pn	17.5 W
Power Dissipation by Ith without Fuse-Links	53 W
Power Dissipation by Ith without Solid Links	81 W
Rated short circuit making capacity with solid links Icm	18.6 kA
Installation Mounting	Bottom Fitting/panel
Product Width	331.5 mm
Product Length	153.9 mm
Product Height	299 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	7.44 kg
Sell Pack Width	330 mm
Sell Pack Length	355 mm
Sell Pack Height	190 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	630 A
Product Weight	7.44 kg
Conventional Free Air thermal Current - Solid Links	780 A
HS Code	85365080
Country of Manufacture	Hungary
Poles	4-pole
Device Type	Fuse switch disconnector
Voltage	690 V

UK delivery

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