The 56CB4N is a rugged, weatherproof distribution enclosure designed for surface-mounted electrical installations in harsh environments. Part of the renowned 56 Series, this 4-way box is specifically engineered to house miniature circuit breakers (MCBs), RCDs, or solar DC breakers. Flush dimensions 330 x 748 x 88 mm. Protection Degree (IK) IK07 Insulation class Class II Fire resistance (GWEPT) 650 ºC Heat resistance (Ball pressure) 70 ºC Installation temperature -5 ºC -> +60 ºC Work stress <1000 Vac ; 1500 Vdc Thermal power dissipated 40 W UV. Distribution boxes shall be provided with a disconnecting device for each branch circuit. Such disconnecting devices shall be equipped or designed in such a manner that it can be determined by visual observation when such a device is open and that the circuit is deenergized, the distribution box. Wiring diagram shows both PNP and NPN wiring. Actual units use PNP status indicator, NPN status indicator, or neither. Wiring diagram shows PNP wiring. They are particularly suitable for applications under extreme environmental conditions, and they provide reliable protection under heavy loads. Its robust. Compliant with the Low Voltage Directive 2014/35/EU. Standards: EN-IEC 60670-1-24 and IEC-EN 62208. IP40 Surface distribution boxes with 14, 28, 42, 56 and 70 modules of capacity. Halogen-free plastic materials. Door made of 0,8 mm cold-rolled sheet steel painted in white RAL 9003.