Flotect Flow Switch Brass Body, Ambient Temperature - Maximum 167 Degrees F, Ambient Temperature - Minimum -4 Degrees F, Connection Size 3/4 in, Connection Type NPT, Contact Rating (AC) 1 A @ 125V (MV Option), 5 A @ 125/250V (CSA, ATEX and IECEx Models), 5 A @ 125/250V (MT Option), 5 A @ 125/250V (UL Models), Contact Rating (DC) 3 A (Inductive) @ 30V (CSA, ATEX and IECEx Models), 5 A Resistive @ 30V (CSA, ATEX and IECEx Models), Filter Rating - Maximum Not Applicable