Differential current transformer type B+ CT-AC/DC RCM 70 B+ Mounting type: Wall mounting Suitable for detecting AC and DC residual currents up to 100kHz up to 300mA Analog output 4-20 mA DC signal (includes AC/DC component up to 100kHz as mixed current signal) Operating voltage DC: 24 V (21.6 V ... 26.4 V) Protection class: IP20 Dimensions (in mm): W 141 × H 143 × D 104 Inner diameter (in mm): 70