OMEGA's affordable, general purpose pressure switches offer distinct advantages over most similar style switches, including DPDT or adjustable deadband switches, as well as a wide selection of adjustable ranges from 0.5 inH2O to 3000 psi.
SPECIFICATIONS Approval: UL listed, Storage Temperature: -55 to 70°C (-67 to 158°F) Process Temperature: Stainless Steel: -55 to 205°C (-67 to 401°F) Phosphor Bronze: -40 to 150°C (-40 to 302°F) Buna-N: -25 to 95°C (-13 to 203°F) Ambient Temperature: -40 to 70°C (-40 to 158°F), except models PSW-107 to PSW-117 and PSW-134 to PSW-139: -20 to 70°C (-4 to 158°F). Setpoint typically shifts less than 1% of range for a 30°C (54°F) ambient temperature change. Shock: Setpoint repeats after 15 g, 10 ms duration. Vibration: Setpoint repeats after 2.5 g, 5 to 500 Hz SetPoint Repeatability: All models ±1% of adjustable range, except models PSW-118 to PSW-125 and PSW-132 to PSW-133 are ±1.5% Switch Output: One SPDT or DPDT switch may be wired normally open or normally closed Electrical Rating: Standard 15 A 125/250/480 Vac resistive External Manual Reset: 15 A 125/250 Vac resistive Double Pole Double Throw: 10 A 125/250 Vac resistive Enclosure: Die cast aluminum (max. 0.6% copper). Epoxy-coated blue enclosure, gasketed, complies with NEMA-4X Weight: Approximately 0.9 kg (2 lb) Electrical Connection: 1/2 NPT and Two 7/8' diameter knockouts Dimensions: 191 max H x 101 W x 60 mm D (7.5 max 4 x 2.3')
Rated 3 out of
Onil Fillion from
Good but doesn't last & none repairable.The unit itself is well built and does a good job but over time the seals will leak and then the chamber where the micro-switch is fills up with oil. Seal failure is understandable but there's no seal kits available to reseal it so I've had to change it. 3 of them in the last 6 years.
Date published: 2021-04-26
Rated 1 out of
DPDT Switch DeceptionBought this because it had a double pole 15A switch. There is only a single pole switch! Called on overnight shipping status, forever on hold, no call back. Item arrived two days later - not overnight as paid!
What is the current rating of the contact at 24VDC for the PSW-120?
Asked by: Money4Nothing
The DC ratings for the PSW-120 pressure switches are as follows.
125VDC 0.5A Resistive, 0.03A Inductive
24VDC 2.0A Resistive, 1.0A Inductive
Thank you and please feel free to contact us again if you have additional questions
Answered by: engineer rf
Date published: 2019-11-20
What are the materials of all wetted parts?
Asked by: adam_ski
If you are asking specifically about the PSW-108 the wetted parts are Buna-N and Brass.