MERSEN FUSE MB2 400A 3P 1.001.240 1.001.240

The MULTIBLOC® Size 2 NH fuse-switch disconnector offers reliable 3-pole switching for demanding industrial and commercial power distribution applications, supporting up to 400A. Robust bottom-fitting design with panel connection, clamp strap, and secure screw clamp straps (M10) for straightforward installation and consistent electrical contact.

SKU: F1023068Alt SKU: 1.001.240MPN: F1023068

List Price £344.37 ex VAT

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

The MULTIBLOC® Size 2 NH fuse-switch disconnector offers reliable 3-pole switching for demanding industrial and commercial power distribution applications, supporting up to 400A. Its robust bottom-fitting design with panel connection, clamp strap, and secure screw clamp straps (M10) ensures straightforward installation and consistent electrical contact.

Engineered for durability and low maintenance, this disconnector guarantees excellent short-circuit protection and operational safety. Its compact form factor and precision construction make it an optimum choice for panel builders and switchgear systems requiring dependable performance.

Product Code: F1023068

Key Benefits

Reliable 3-pole switching for enhanced operational safety.
Supports high current rating of 400A for demanding applications.
Robust bottom fitting and panel connection for easy installation.
Clamp strap and secure M10 screw clamp straps ensure consistent electrical contact.
Compact and durable design reduces maintenance requirements.
Excellent short-circuit protection with a high SCCR of up to 80kA.

Compatibility

This NH fuse-switch disconnector is compatible with Size 2 NH fuses and designed to integrate seamlessly with IEC Fuse Switch Disconnector panels and switchgear systems operating at rated voltages up to 690 V AC. It is suitable for use in industrial and commercial electrical distribution setups requiring 3-pole switching and bottom fitting panel connections.

Applications

Industrial power distribution panels.
Commercial electrical switchgear systems.
Protection and isolation in electrical circuits up to 400 A.
Panel building and retrofit installations.
Short-circuit and overload protection in electrical networks.

Technical Specifications

Current	400 A
Phase	Three Phase
Item number	F1023068
Catalogue No	1.001.240
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bottom Fitting/panel Connection Clamp Strap / Screw clamp straps M10
EAN/UPC Code	4027597029661
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
Design Details	Clamp Strap / Screw
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 current of this fuse-switch disconnector?

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

Is this product suitable for DC applications?

This specific model is designed for AC use as indicated by the 'AC or DC' specification being AC.

What type of mounting does the MULTIBLOC® Size 2 support?

It supports bottom fitting/panel mounting for easy integration into switchgear panels.

What is the short circuit current rating (SCCR) of this device?

The SCCR is rated up to 80kA at various voltages depending on pole configuration.

Are the clamp straps included and what size are the screws?

Yes, the product includes clamp straps with secure screw clamp straps sized M10.

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, screw clamp M10, IEC fuse switch disconnectors, industrial fuse switch, commercial power distribution switch.

Current	400 A
Phase	Three Phase
Item number	F1023068
Catalogue No	1.001.240
Description	NH fuse-switch disconnector MULTIBLOC® Size 2 400A 3-Pole switching Bottom Fitting/panel Connection Clamp Strap / Screw clamp straps M10
EAN/UPC Code	4027597029661
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
Design Details	Clamp Strap / Screw
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

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