MERSEN FUSE MB4a 1600A 3P 1.000.092 1.000.092

MULTIBLOC® Size 4a 1600A 3-pole fuse-switch disconnector with bottom fitting and panel connection, suitable for industrial and utility applications requiring reliable circuit protection and isolation.

SKU: Z1023085Alt SKU: 1.000.092MPN: Z1023085

List Price £2,144.33 ex VAT

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Why Choose the NH Fuse-Switch Disconnector MULTIBLOC® Size 4a 1600A 3-Pole?

Engineered for demanding industrial and utility applications, the MULTIBLOC® Size 4a 1600A 3-pole fuse-switch disconnector ensures reliable circuit protection and isolation. Its bottom fitting with panel connection and robust M12 screw terminals provide secure, vibration-resistant installation for high-current operations.

This device supports standard NH fuses, accommodating up to 1600A, making it ideal for main distribution boards and critical power infrastructure. The durable construction and precise switching mechanism guarantee safe maintenance and operational continuity in even the most challenging environments.

Product Code: Z1023085

Key Benefits

High current rating of 1600A suitable for heavy-duty industrial applications.
Reliable 3-pole switching ensures safe and efficient circuit isolation.
Bottom fitting with panel connection for secure and vibration-resistant installation.
Compatible with standard NH fuses for easy maintenance and replacement.
Robust construction designed to withstand harsh environmental conditions.
Complies with RoHS standards, ensuring environmentally responsible manufacturing.

Compatibility

This fuse-switch disconnector is compatible with NH fuse links of size 4a and supports solid links rated up to 1800 A. It is designed for use in IEC-compliant electrical systems operating at voltages up to 690 V AC and frequencies of 50 to 60 Hz. The device fits standard bottom fitting/panel mounting setups, making it suitable for integration into existing industrial switchgear and distribution boards.

Applications

Main distribution boards in industrial and commercial facilities.
Power infrastructure in utilities and energy sectors.
Protection and isolation in motor control centres and switchgear assemblies.
Heavy machinery and equipment requiring high-current circuit protection.
Renewable energy installations such as wind and solar power plants.

Technical Specifications

Current	1600 A
Phase	Three Phase
Item number	Z1023085
Catalogue No	1.000.092
Description	NH fuse-switch disconnector MULTIBLOC® Size 4a 1600A 3-Pole switching Bottom Fitting/panel Connection Screw M12 ct.150A
EAN/UPC Code	9008567007013
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Ampere Rating	1600 A
Utilization Category	AC 21 B @ Ue = AC 400 V; Ie = 1600 A
Switchability	3-pole switching
RoHS Compliant	Yes
AC or DC	AC
Short Circuit Current Rating (SCCR)	31,5kA@Ue = AC 400 V; Ie = 1600 A / 31,5kA@Ue = AC 500 V; Ie = 1600 A / 31,5kA@Ue = AC 690 V; Ie = 1600 A
Fuse Size	4a
Design Details	triple pole switching
Number of Poles	3-Pole
Degree of Pollution	3
Rated Impulse Withstand Voltage	8 kV
Rated Insulation Voltage	800 V
Rated SC Withstand	50 kA / 1 s
Max Power dissipation of Fuse Links Pn	140 W
Max Power dissipation of Solid Links Pn	42 W
Power Dissipation by Ith without Fuse-Links	270 W
Power Dissipation by Ith without Solid Links	270 W
Rated short circuit making capacity with solid links Icm	100 kA
Installation Mounting	Bottom Fitting/panel
Product Width	378 mm
Product Length	232.9 mm
Product Height	330 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	13.9 kg
Sell Pack Width	300 mm
Sell Pack Length	400 mm
Sell Pack Height	400 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	1600 A
Product Weight	13.9 kg
Conventional Free Air thermal Current - Solid Links	1800 A
HS Code	85365080
Country of Manufacture	Hungary
Poles	3-pole
Device Type	Fuse switch disconnector
Voltage	690 V

Frequently Asked Questions

What type of fuses does this disconnector support?

The MULTIBLOC® Size 4a 1600A 3-pole fuse-switch disconnector supports standard NH fuse links of size 4a, suitable for currents up to 1600A.

Can this device be used in DC applications?

No, this particular model is designed for AC applications only, with rated voltages up to 690 V AC.

What is the short circuit current rating?

The device has a short circuit current rating (SCCR) of 31.5 kA at voltages of 400 V, 500 V, and 690 V AC with a current rating of 1600 A.

How is the device mounted?

It is mounted using a bottom fitting panel connection, secured with M12 screw terminals for vibration-resistant installation.

Common Search Terms

NH fuse switch disconnector, MULTIBLOC 1600A fuse switch, 3-pole fuse switch, industrial fuse switch, IEC fuse switch disconnector, bottom fitting fuse switch, panel mount fuse switch, high current fuse switch, M12 screw terminal fuse switch, 690V fuse switch disconnector.

Current	1600 A
Phase	Three Phase
Item number	Z1023085
Catalogue No	1.000.092
Description	NH fuse-switch disconnector MULTIBLOC® Size 4a 1600A 3-Pole switching Bottom Fitting/panel Connection Screw M12 ct.150A
EAN/UPC Code	9008567007013
Frequency (Hz)	50 ... 60 Hz
Rated voltage AC IEC	690 V
Ampere Rating	1600 A
Utilization Category	AC 21 B @ Ue = AC 400 V; Ie = 1600 A
Switchability	3-pole switching
RoHS Compliant	Yes
AC or DC	AC
Short Circuit Current Rating (SCCR)	31,5kA@Ue = AC 400 V; Ie = 1600 A / 31,5kA@Ue = AC 500 V; Ie = 1600 A / 31,5kA@Ue = AC 690 V; Ie = 1600 A
Fuse Size	4a
Design Details	triple pole switching
Number of Poles	3-Pole
Degree of Pollution	3
Rated Impulse Withstand Voltage	8 kV
Rated Insulation Voltage	800 V
Rated SC Withstand	50 kA / 1 s
Max Power dissipation of Fuse Links Pn	140 W
Max Power dissipation of Solid Links Pn	42 W
Power Dissipation by Ith without Fuse-Links	270 W
Power Dissipation by Ith without Solid Links	270 W
Rated short circuit making capacity with solid links Icm	100 kA
Installation Mounting	Bottom Fitting/panel
Product Width	378 mm
Product Length	232.9 mm
Product Height	330 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	13.9 kg
Sell Pack Width	300 mm
Sell Pack Length	400 mm
Sell Pack Height	400 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	1600 A
Product Weight	13.9 kg
Conventional Free Air thermal Current - Solid Links	1800 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.

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