Liquid Flow Switch Ambient Temperature - Maximum 167 Degrees F Ambient Temperature - Minimum -4 Degrees F Connection Size 1 1/4 in Connection Type NPT Contact Rating (AC) 5 A @ 125/250V Contact Rating (DC) 25 A (Inductive) @ 30V (CSA ATEX and IECEx Models) 5 A Resistive @ 30V (CSA ATEX and IECEx Models) Filter Rating - Maximum Not Applicable Flow Rate - Maximum Not Applicable Flow Rate - Minimum Not Applicable Flow Switch Type Paddle For Pipe Size 1/2 in 1/4 in 2 in 3/8 in