Protective devices for photovoltaicsProducts specially designed for use in photovoltaic systems.Protective devices for photovoltaicsProducts specially designed for use in photovoltaic systems. Categories Downloads Prospectus Energy transition - [ 1405 KB ] Residual current circuit-breakers (RCCBs) Residual current circuit-breaker specially designed for use in photovoltaic… Residual current operated circuit-breakers with integral overcurrent protection (RCBOs) RCBOs of the PV variant combine residual current circuit-breakers and… Technical informationsProducts specially designed for use in photovoltaic systems.