LF31 differential pressure switches offer pressure, vacuum and differential models capable of sensing very low set points, and switching current up to 5A resistive, 2.5A inductive. Designed for use in the HVAC industry, where reliable air proving is critical to both performance and customer safety, the LF31 is a favorite with leading manufacturers of gas-fired warm air furnaces and water heaters.
Specification:
Model | LF31 |
Media | Air , products of combustion, L.P. or natural gas |
Operating Pressure Range | 0.15" W.C. to 34" W.C. |
Proof Pressure | 100" W.C. (3.6PSI) |
Operating Temperature | -40° C to 85° C |
Contact Arrangement | SPST or SPDT |
Electric Rating | Resistance: Initial: <50 milliohms Current: 100mA minimum, 5A resistive maximum (fine silver alloy contacts); 15mA minimum, 0.5A resistive maximum (gold-platinum-silver alloy contacts); |
Terminals | 0.032" x 0.250" copper alloy |
| Connection | Inlet 0.25" for tube connection |
| Mounting Bracket | all kinds of mounting bracket is available on request |
Conversion: 1"W.C.= 1 inch/H2O=249Pa 1mbar=100Pa
