MERSEN FUSE MB4a 1600A 3P 1.000.091 1.000.091

Reliable 3-pole switching fuse-switch disconnector supporting up to 1600A with bottom fitting/panel mounting and M12 screw terminals.

SKU: Y1023084Alt SKU: 1.000.091MPN: Y1023084

List Price £2,417.61 ex VAT

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

The MULTIBLOC® Size 4a NH fuse-switch disconnector delivers reliable 3-pole switching for high-capacity industrial applications, supporting up to 1600A. Its robust bottom fitting/panel connection and secure M12 screw terminals ensure optimal conductivity and dependable long-term performance.

Engineered for straightforward installation and safe maintenance, this device offers precise circuit protection and isolation. Ideal for demanding environments requiring efficient energy distribution and enhanced operational safety.

Product Code: Y1023084

Key Benefits

Reliable 3-pole switching for high-capacity circuits up to 1600A
Robust bottom fitting/panel mounting for secure installation
Secure M12 screw terminals ensuring optimal conductivity
Designed for easy installation and safe maintenance
High short circuit current rating of up to 31.5kA for enhanced safety
Compliant with RoHS standards for environmental safety

Compatibility

This NH fuse-switch disconnector is compatible with MULTIBLOC® Size 4a fuse links and solid links designed for 3-pole switching applications. It integrates seamlessly with industrial electrical panels requiring bottom fitting or panel connection mounting, supporting IEC rated voltages up to 690 V AC.

Applications

Industrial power distribution systems
High-capacity motor control centres
Energy management and control panels
Electrical isolation and circuit protection in factories
Renewable energy installations requiring robust switching

Technical Specifications

Current	1600 A
Phase	Three Phase
Item number	Y1023084
Catalogue No	1.000.091
Description	NH fuse-switch disconnector MULTIBLOC® Size 4a 1600A 3-Pole switching Bottom Fitting/panel Connection Screw M12 ct.100A
EAN/UPC Code	9008567007006
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	single 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	233 mm
Product Height	330 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	13.7 kg
Sell Pack Width	270 mm
Sell Pack Length	400 mm
Sell Pack Height	280 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	1600 A
Product Weight	13.7 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 is the maximum current rating of this fuse-switch disconnector?

The device supports a maximum ampere rating of 1600 A, suitable for high-capacity industrial applications.

Can this product be used for DC applications?

No, this fuse-switch disconnector is designed for AC applications only.

What type of mounting does this product support?

It supports bottom fitting or panel connection mounting for secure installation.

Is this product RoHS compliant?

Yes, it complies with RoHS standards ensuring environmental safety.

What is the short circuit current rating?

The product has a short circuit current rating (SCCR) of 31.5kA at various rated voltages up to 690 V AC.

Common Search Terms

NH fuse switch disconnector, MULTIBLOC Size 4a, 1600A fuse switch, 3-pole switch disconnector, industrial fuse switch, bottom fitting fuse switch, panel connection fuse switch, M12 screw terminal fuse switch, IEC fuse switch disconnector

Current	1600 A
Phase	Three Phase
Item number	Y1023084
Catalogue No	1.000.091
Description	NH fuse-switch disconnector MULTIBLOC® Size 4a 1600A 3-Pole switching Bottom Fitting/panel Connection Screw M12 ct.100A
EAN/UPC Code	9008567007006
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	single 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	233 mm
Product Height	330 mm
Sell Pack Quantity	1 EA
Sell Pack Weight	13.7 kg
Sell Pack Width	270 mm
Sell Pack Length	400 mm
Sell Pack Height	280 mm
Product group	IEC Fuse Switch Disconnectors
Conventional Free Air thermal Current With Fuse-Links Ith	1600 A
Product Weight	13.7 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.

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

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

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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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