The wago din rail terminal blocks spring cage 5261mm grey wago 2002 1861 the wago din rail terminal block spring cage 52mm grey is a 4 conductor carrier terminal block with front entry the cage clampreg connection technique allows stripped solid and ferruled conductors to be pushed in with their space saving design the terminal block is up to 30 smaller than standard terminal block and with a conductor entry angle of less than 15deg which allows easier installation in smaller spa