Dimensions : 1.7 x 2.44 x 3.52 in. Electrical Phase : 3 Height : 3.52 in. Length : 1.7 in. Maximum Operating Temperature : 131 °F Maximum Voltage Sensed : 480 V Minimum Operating Temperature : -20 °F Minimum Voltage Sensed : 380 V Monitoring Application : Phase, Voltage Mounting Type : Socket Number of Poles : 1 Operating Temperature Range : -20 to +131 °F Phase Sensitivity : Phase Loss, Phase Reversal Series : 257 Special Features : Automatic or Manual Reset Standards Met : CSA, UL Supply Voltage : 480 VAC Terminal Type : Plug-In Time Delay : 50 ms Voltage Sensing Range : 380 to 480 V Voltage Sensitivity : Low Voltage Width : 2.44 in.