This specification establishes the general requirements for relays that use a combination of solid state
circuit input elements functioning with an electro-mechanical relay that performs the switching functions associated
with control system applications (see 6.1). These relays are designed to operate in low and medium power switching
circuits with contact ratings up to 1 ampere alternating current (ac) or direct current (dc). The failure rate level is
established at a confidence level of 90 percent for qualification and 60 percent for maintenance of qualification based
on 100,000 cycles at +125°C under rated load conditions specified herein. Excludes time delay relays. CAUTION:
The use of any coil voltage less than the rated coil voltage will compromise the operation of the relay. CAUTION:
Pick-up, hold, and dropout voltages are for test purposes only and are not to be used as design criteria. For
additional application and caution information, see 6.1.