Industrial Pressure Switches for Harsh Environments

PSW-200

Pressure Switches for Harsh Environments

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Rugged One-Piece Epoxy-Coated Aluminium Body
Meets NEMA-4X Classifications
UL Listed, cUL Certified
Stainless Steel Nameplate
Internal Reference Scale with Adjustment Lock
Hermetically Sealed SPDT or DPDT Switch

Interrupteurs de pression - Voir Les Produits Associés

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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")

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Buna-N Diaphragm, O-ring with 1/2 NPTF Aluminum Connection

PSW-226

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10-250 in H2O pressure switch with Buna-N diaphragm and O-ring, 1/2 NPTF fitting and 11 amp SPDT switch

Buna-N Diaphragm, O-Ring, 1/4 NPTF 304 SS Connection

Welded 304 SS Diaphragm, 1/2 NPTF 316SS Connection

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Notez: 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.