Damp Location Hazardous Location NEMA Rated Surface AC Only Ceiling Mount Nickel–Metal Hydride (NiMH) Damp Location
Damp Location
These items can be placed where they may be splashed with water. Typically they are safe to be used outdoors.NEMA Rated
NEMA Rated enclosures are intended for indoor or outdoor use primarily to provide a degree of protection against the entry of water during prolonged submersion at a limited depth. NEMA 12 NEMA 12 enclosures are designed to prevent the ingress of dust, water, and oil.Hazardous Location
Hazardous LocationAC Only
AC OnlyCeiling Mount
Ceiling MountNickel–Metal Hydride (NiMH)
NiMH batteries can have two to three times the capacity of an equivalent size NiCd, and their energy density approaches that of a lithium-ion cell. Nickel–Metal Hydride batteries are good for high current drain applications because of their low internal resistance.
The disadvantage of NiMH batteries is their high rate of self-discharge. NiMH batteries typically lose 4% of their charge per day of storage. LSD NiMH batteries significantly lower self-discharge, but at the cost of lowering capacity by about 20%.