Box Z0531 with window suitable for (earth leakage) circuit breaker Dimensions: 275x160x202 mm. Material: Glass fiber reinforced polyester Degree of protection: IP65 Cable entry: depending on the use of the circuit breakers. Suitable for all types circuit breaker Z0511 - max. 2 pcs 1P+N (earth leakage) circuit breaker - max. 1 pcs 3P+N earth leakage switch or 1 pcs circuit breaker 3P of 4P Note: (earth lekage) circuit breaker must be ordered seperately - see Ex Control components Certification for the complete box with breakers or switch: II 2 G Ex de IIC T5/T6 Gb II 2 D Ex dip A21 Ta80/95 degC