Wago din rail terminal blocks spring cage 4252mm grey wago 2001 12111000 411 the wago din rail terminal block spring cage 42mm grey circuit i is a 2 conductor diode terminal block with diode 1n4007 the cage clampregs 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 installatio