MERSEN FUSE BASE NH 2-PP F/RAIL. 1P BB21PPR

MERSEN FUSE BASE NH 2-PP F/RAIL. 1P BB21PPR

Mersen BB21PPR single-pole NH Size 2 DIN rail fuse base rated at 400 A, 1250 V AC and 1000 V DC for industrial power distribution systems.

SKU: BB21PPRAlt SKU: BB21PPRMPN: E211075
Price
List Price £57.66 ex VAT
Your Price (ex VAT)
£57.66
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £57.66
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 3

£57.66

Why Choose the Mersen BB21PPR NH Fuse Base?

The Mersen BB21PPR is a high-performance single-pole NH Size 2 fuse base designed to provide safe, reliable installation of NH fuse links in industrial low-voltage power distribution systems. As part of the proven Mersen NH Plastic Bases range, it offers exceptional electrical performance, robust construction and straightforward DIN rail installation for modern electrical panels and switchboards.

Engineered for demanding industrial environments, the BB21PPR features silver-plated electrolytic copper contact springs with captive steel spring technology to maintain consistent contact pressure throughout its service life. The design delivers excellent conductivity while resisting thermal stress and ensuring dependable operation under high current loads.

Suitable for NH Size 2 fuse links, the BB21PPR is rated for 400 A, 1250 V AC and 1000 V DC. Its compact DIN rail mounted design makes it an ideal solution for OEM machinery, motor control centres, switchboards and industrial power distribution equipment.

Key Advantages

  • Designed for NH Size 2 fuse links.
  • DIN rail mounting simplifies installation.
  • Rated up to 400 A for industrial applications.
  • Suitable for systems up to 1250 V AC and 1000 V DC.
  • Silver-plated copper contacts provide excellent electrical conductivity.
  • Robust construction ensures long-term reliability in demanding environments.

Key Features

  • Mersen NH Plastic Bases series.
  • Catalogue number: BB21PPR.
  • Item number: E211075.
  • NH Size 2 fuse compatibility.
  • Single-pole configuration.
  • Screw terminal electrical connections.
  • DIN rail installation.
  • Compatible with AC and DC industrial power systems.

Reliable Protection for Industrial Power Distribution

NH fuse bases provide the secure mounting platform required for NH fuse links used throughout industrial electrical distribution systems. Stable contact pressure, low electrical resistance and durable construction help ensure reliable overcurrent protection while simplifying maintenance and fuse replacement.

The Mersen BB21PPR is designed for modern industrial installations where dependable electrical performance, straightforward installation and long service life are essential. Its DIN rail mounting configuration allows rapid integration into new and existing electrical assemblies.

Typical Applications

  • Industrial switchboards.
  • Power distribution panels.
  • Motor control centres.
  • OEM machinery.
  • Electrical control cabinets.
  • Industrial automation and infrastructure installations.

Technical Specifications

Phase Single Phase
Manufacturer Mersen
Series NH Plastic Bases
Model BB21PPR
Item number E211075
Product type NH fuse base
Fuse size NH Size 2
Number of poles 1
Rated current 400 A
Rated AC voltage 1250 V AC
Rated DC voltage 1000 V DC
Connection type Screw terminals
Mounting type DIN rail
Short-circuit current rating 117 kA
Approximate weight 0.53 kg
EAN 8430399002958
RoHS compliant Yes
HS Code 85361090
Poles 1-pole
Device Type Fuse base / holder
Fuse Type NH (DIN)
Fuse Size NH2
Current 400 A

Frequently Asked Questions

What is the Mersen BB21PPR used for?

The BB21PPR is an NH Size 2 fuse base used to securely mount NH fuse links in industrial power distribution systems.

What fuse size does the BB21PPR accept?

It is designed specifically for NH Size 2 fuse links.

What is the maximum current rating?

The fuse base supports applications rated up to 400 A.

How is the BB21PPR installed?

The BB21PPR is designed for DIN rail mounting using screw terminal electrical connections.

Is the BB21PPR suitable for AC and DC systems?

Yes. It is suitable for installations operating up to 1250 V AC and 1000 V DC.

Trusted by Electrical Professionals Worldwide

Mersen NH fuse bases are trusted by electrical engineers, panel builders and OEM manufacturers worldwide for dependable overcurrent protection, high-quality construction and long-term reliability in industrial power distribution systems.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...