Solid rubber distributors are portable switching and connection devices for mobile power supply. The Doepke Protection Box is equipped with an all-current sensitive residual current circuit breaker in MI design. It therefore offers protection against pulse and alternating residual currents, residual currents with mixed frequencies and smooth direct residual currents. The DPB can be easily connected to systems in which the upstream protective measure is unknown or insufficient (e.g. residual current type A). It is optimized for use in harsh environments as it is largely resistant to impacts and liquids. The DPB is particularly suitable for protecting electrical consumers with changing locations, e.g. for rental equipment and machines on construction sites. Properties: portable, compact solid rubber distributor for frequency-controlled equipment, versions in 16 A, 32 A and 16 A/32 A switchable, tripping threshold for smooth DC residual currents less than 6 mA, high temperature range thanks to heavy-duty design, unbreakable, ageing, acid and alkali resistant housing, meets the requirements of BG Bau, mounting type: mobile stand housing Areas of use: The DPB can be used wherever mobile personal protection and the protection of frequency-controlled equipment are required, e.g. on construction sites as a construction power distributor for cranes, mixing machines, etc. Notes: With solid rubber distributors with switchable outputs, only one of these outputs is active at a time.