IEC Contactors & Starters. Type 2 Coordination. C-2000 Starters. Maximum Amps: 4 - 6.3. Type LPJ-SP or AJT Maximum Fuse: 10. C-2000 contactors and starters have been tested and certified to meet IEC 947.4 Type 2 coordination when protected with the type âJâ? fuses. âType 2 coordination requires that, under short-circuit conditions, the contactor or starter shall cause no danger to persons or installation and shall be suitable for further use. The risk of contact welding is recognized, in which case the manufacturer shall indicate the measures to be taken as regards the maintenance of the equipment.â? (IEC 947.4).