This is a 90 ampere 600 volt rated 1-pole terminal block used with DIN rails.
SPECIFICATIONS
No. of Poles: 1
Rated Voltage: 600V
Rated Current: 90A
Dielectric Strength: 2500V/min
Insulation Resistance: 100MΩ
Applicable Wire: 22mm² MAX
Applicable Screw: M6