This part of ISO 5867 specifies the performance re-quirements for electromagnetic relays and contactors for use in nominal 28 V d.c. or 115 V/200 V 3-phase, 400 Hz, a.c. systems having the characteristics specified in ISO 1540.
This part of ISO 5867 specifies the performance re-quirements for relays and contactors having nominal contact ratings of 5 A a.c, 5 A d.c. or greater. Auxili-ary contacts, where applicable, may be rated at lower currents. Three temperature classes and three classes of sealing are specified.
This part of ISO 5867 is applicable to single-pole and multi-pole relays and contactors, electromagnetically operated and magnetically held, or electromag-netically operated and mechanically or magnetically latched, controlled by a voltage of 28 V d.c. or 115 V, 400 Hz, a.c.
BS G 261-1:1996 history
1996BS G 261-1:1996 Specification for aircraft. Electromagnetic relays and contactors. General requirements