[Mitsubishi Electric] - SLD-T21FN Class 2 Heat Resistant Mechanical Latch Magnetic Contactor (DC Operated Closing Coil, 22.4A Carrying, 20A AC-3 at 220V)

Mitsubishi Electric MS-T/N series SLD-T21FN class 2 heat-resistant mechanical latch magnetic contactor for distribution boards and panelboards of dedicated emergency power receiving equipment. Retains conduction and insulation function at high temperature during a fire, switching and carrying the heat-resistant rated current for 30 minutes under the one seventh fire temperature curve. Heat-resistant carrying current 22.4A, heat-resistant rated current 20A at 220V, 20A at 440V, 17A at 550V under AC-3 class, 3a main contacts with 2a2b auxiliary contacts. Closing coil MC and tripping coil MT are specified independently; the closing coil is DC operated and the tripping coil may be any AC or DC designation available on the frame. Reversing type SLD-2XT21FN is available. Durability and outline dimensions are the same as the standard product. Type approval number 2MC-14171. Certified by the Japan Electrical Manufacturers Association of Distribution Control Systems to Fire and Disaster Management Agency Notification No.10 of 1981. Coils cannot be replaced by the user because the product is a certified item. For emergency power circuits keep the load current within the heat-resistant rated current and select wire sized for at least the load current divided by 0.7 at normal temperature.