SPECIFICATIONS Approvals:UL Listed, cUL Certified Storage Temperature: -54 to 71°C (-65 to 160°F) Ambient Temperature Limits: -40 to 71°C (-40 to 160°F), except Models PSW-234 to PSW-240, and PSW-221 to PSW-226: -18 to 71°C (0 to 160°F). Setpoint typically shifts less than 1% of range for a 28°C (50°F) ambient temperature change Process Temperature: Stainless steel: -57 to 204°C (-70 to 400°F) Phosphor bronze: -40 to 149°C (-40 to 300°F) Buna-N: -23 to 93°C (-10 to 200°F) Shock: Setpoint repeats after 15 g, 10 ms duration Vibration: Setpoint repeats after 2.5 g, 5 to 500 Hz Enclosure Classification: Complies with NEMA-4X Setpoint Repeatability: 1% of adjustable range, except models PSW-241 to PSW-245D, 1.5% Switch Output: Hermetically sealed SPDT or DPDT Electrical Output: 11 A, 125/250 Vac resistive Enclosure: Die cast aluminum, epoxy coated, gasketed Weight: 0.7 to 2.7 kg (1.5 to 6 lb) (varies by model) Electrical Connection: 1/2 NPT and (2) 22 mm (7/8 in) diameter knockouts Pressure Connection: 1/2 NPTF, or 1/4 NPTF as noted in "To Order" table Dimensions: psi ranges: 214 max H x 101 W x 60 mm D (8.4 max 4 x 2.3") inH2O ranges: W and D = 152 mm (6")
† All amounts shown in EUR Note: DPDT switches are manufactured so that contact transfer of both switches occurs at the same time for rising pressure set points. For falling pressure set points, a small amount of non-simultaneity in the switch outputs may be observed.
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