Why Choose the Mersen BB21PPRFS NH2 Fuse Base?
The Mersen BB21PPRFS is a robust single-pole NH2 plastic fuse base designed to provide secure mounting and dependable electrical contact for NH fuse links in industrial low-voltage power distribution systems. Part of the established Mersen NH Plastic Bases series, it is suitable for switchboards, distribution panels, motor control centres and OEM electrical equipment.
This fuse base incorporates IP20 indirect touch protection, helping reduce the risk of accidental contact with live components when correctly installed. Its stable silver-plated electrolytic copper contact springs provide efficient conductivity, while separate captive steel springs maintain reliable contact pressure during demanding operating conditions.
Rated at 400 A, 1250 V AC and 1000 V DC, the BB21PPRFS is designed for compatible NH size 2 fuse links. Its DIN rail mounting arrangement and screw connections support efficient installation within industrial control cabinets and electrical distribution assemblies.
Key Advantages
- Designed for compatible NH2 fuse links.
- 400 A rated current for demanding power distribution applications.
- 1250 V AC and 1000 V DC voltage ratings.
- IP20 indirect touch protection improves installation safety.
- DIN rail mounting supports efficient panel assembly.
- Silver-plated copper contacts provide reliable conductivity.
- Single-pole design enables flexible multi-pole configurations.
Key Features
- Mersen NH Plastic Bases series.
- Product reference: BB21PPRFS.
- Manufacturer item number: R226726.
- Designed for NH size 2 fuse links.
- Single-pole configuration.
- 400 A rated current.
- 1250 V AC rated voltage.
- 1000 V DC rated voltage.
- IP20 indirect touch protection.
- DIN rail mounting.
- Screw terminal connections.
- Suitable for closely mounted parallel arrangements.
Reliable High-Current Fuse Protection
NH fuse bases provide the secure mechanical and electrical interface required between NH fuse links and industrial power distribution equipment. Reliable contact pressure helps minimise electrical resistance and supports consistent performance when circuits operate under changing loads.
The Mersen BB21PPRFS combines a durable moulded base, high-quality conductive components and integrated touch protection. Its single-pole design allows multiple units to be closely mounted together when constructing three-phase or application-specific fusegear assemblies.
Typical Applications
- Industrial low-voltage switchboards.
- Power distribution panels.
- Motor control centres.
- Industrial machinery and production equipment.
- Renewable-energy distribution systems.
- OEM electrical control panels.
- Commercial and infrastructure installations.
