CA714/4 - 

DIN Rail Mounted Jumpers, 20/25 Amps, Stripping Length 9 mm, Polyamide 6.6

Accessories for Selected DIN Rail and Panel Mount Terminal Blocks by Type
Certain electrical and control systems require protection by fuses. The terminal has a hinged carrier that has a specially designed space for a cartridge type glass fuse of size Φ 5 x 20 or Φ 5 x 25 mm. The fuse can be engaged or disengaged by the movement of the carrier.