Mersen BB01EP NH0 Plastic Fuse Base 160A 1-Pole B213142

BB01EP (item number B213142) is a Mersen NH plastic fuse base of size 0, single pole, rated 160 A (power acceptance 25 W) at 1000 V ac, type EP with square contacts. It has screw connection and screw mounting, weighs 0.19 kg and is packed three to a box.

The base that carries NH0 fuse-links

A fuse base is the fixed part of the NH system: the base takes the NH fuse-link, whose blade contacts plug into spring contacts. Mersen describes its plastic bases as polyamide insulating bases with silver-plated contacts, high-pressure spring contacts and screw or rail mounting, available in single-pole and three-pole designs that can be mounted closely in parallel rows.

The contacts are one-piece silver-plated electrolytic copper springs with separate captive steel springs, which the datasheet says makes the contact resistant to high thermal stress. This base accepts NH size 0 fuse-links for voltages up to 1250 V ac and 1000 V dc per the datasheet overview, and it is dimensioned in accordance with DIN 43620.

Key features as printed in the datasheet

• NH size 0, 1 pole, 160 A (power acceptance 25 W), 1000 V ac.
• Type EP: square contacts.
• Polyamide insulating base; silver-plated electrolytic copper contacts; high-pressure spring contacts.
• Screw connection and screw mounting (M6 screw); DIN-rail version is BB01EPR.
• Uimp 8 kV for sizes 0-4; SCCR up to 117 kA from size 00 to size 3 (datasheet overview).
• Standards printed: IEC 60269 compliance, DIN 43620, DIN VDE 0636-2 and 0636-21.

Technical specification

Product data

Mechanical data (size 0, from datasheet)

Selection and ordering guide

Catalog number BB01EP = base, size 0, 1 pole, EP (square contact) type. The DIN-rail version is BB01EPR; two-, three- and four-pole versions are BB02EP, BB03EP and BB04EP. Type PP (clip contacts) and versions with indirect-touch protection (FS, IP20) are separate items.

Match the base size to the fuse-link: this base fits NH size 0 fuse-links such as those in the Mersen NH0 range; sizes 000, 00, 1, 2 and 3 need their own bases.

Installation and operation notes

Mount with M6 screws and flat washers of 12 mm external diameter (size 0), torque 3.5 – 4.5 Nm. Terminate cables to the M8 terminal at the recommended 8 – 10 Nm; do not exceed 13.2 Nm.

For embedded applications such as railway and maritime, the datasheet asks you to contact Mersen. Use separating plates or covers as accessories where active parts need protection.

Derived check: the power acceptance of 25 W for size 0 means each base can dissipate 25 W from the fuse-link, so for a three-pole row (such as BB03EP, 0.64 kg) the combined acceptance is 75 W. The fuse-link dissipation figures printed in the Mersen NH0 datasheet tables should be compared with this limit when the fuse is run near its rated current.

Applications in Oman and the GCC

Power distribution cabinets, motor control centres, busbar-mounted fuse systems and main distribution boards in industrial, building and utility installations using NH fuse-links for cable protection.

Plastic polyamide bases are lighter and cheaper than ceramic bases, and the 1000 V rating gives margin on 400/690 V networks.

Ordering tip: the package quantity is 3 bases, enough for a three-phase set of single-pole bases, and the item number B213142 is the Mersen order reference. For a three-phase assembly in one piece, the three-pole BB03EP is the alternative; the DIN-rail versions carry an R suffix (BB01EPR, BB03EPR).

Selection and handling notes

The BB01EP base is a plastic single-pole base for NH size 0 fuse-links. Check that the fuse-link size matches, that the busbar or cable terminal fits the screw connection, and that the 25 W power acceptance covers the dissipation of the fuse-link fitted. The base can be mounted on a panel plate with screws, and several single-pole bases can be placed side by side to build a three-phase row. Fit phase barriers where the installation rules require them.

Information needed for a quotation

Send the full item code, the quantity, the delivery location in Oman or the GCC and any matching fuse bases, holders or handles, so that the complete protection package can be quoted together.

Documents and supply information

The manufacturer data sheet is attached to this page and should be read together with the project specification before a purchase is confirmed. Ratings, dimensions and protection classes are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.

Compatible accessories and related items

Related Mersen items on this site: NH gG fuse-links (NH000GG50V100, NH2GG50V400, NH3GG50V630), aM NH2AM69V200 and semiconductor NH1UD69V400PV; those other sizes need their own base.

Frequently asked questions

What is BB01EP?

An NH size 0 single-pole plastic fuse base, 160 A, 1000 V ac, with square (EP) contacts and screw mounting.

What torque is recommended for the M8 terminal?

8 – 10 Nm recommended, maximum 13.2 Nm per the datasheet.

Is there a DIN-rail version?

Yes, BB01EPR.

What is the power acceptance?

25 W for the size 0 base.

Does Seven Star LLC act as a Mersen distributor?

No. Seven Star LLC is an independent supplier in Muscat that sources Mersen products on request.

Documents and quotation

For quotation, send your required quantity and destination. The Mersen datasheet for BB01EP is provided below the description on this page. Seven Star LLC works as an independent supplier from Muscat. Please compare code, ratings and approvals with the document before you place an order; see also the category listing.