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Vibration Resistant Switches for Class I Hazardous Locations

8 to 30 psi, fixed deadband

3.0

(2)

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Data Sheet (PDF)

$539.17

Item# PSW12T-AS

Volume discounts available

Volume Discount Schedule

Quantity	Price each
1-24	$539.17
25-49	$512.21
50-99	$501.43
100-199	$479.86
200+	$469.08

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Lead Time (If not in stock): 6 weeks

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Compact Stainless Steel Construction
Belleville Technology for Long Life, Vibration Resistance and Stability
Easy Field Setting and Adjustment
SPDT Sealed Switches

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PSW12T-AS Model Options

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Switch Type

Pressure Range

Deadband Range

Features

Pressure Type

Pressure Port Size

Pressure Port Type

Deadband

Specs

Edit Model Options

Connection Gender Female
Enclosure Rating 300 stainless steel NEMA-4X
Maximum Ambient Temperature 80 {C} (176 {F})
Maximum Rating 5
Maximum Storage Temperature 95 {C}
Minimum Ambient Temperature -50 {C} (-28 {F})
Minimum Storage Temperature -50 {C} (-28 {F})
Pressure Type Compact
Pressure Units PSIG
repeatability ±1% of adjustable range
Shock Setpoint repeats after 75 g
Vibration Setpoint repeats after 15 g

OMEGA'S PSW12 offers reliability, repeatability and durability in a compact design. This switch is rack mountable and has an accessible adjustment when installed. Snap-Action Belleville spring design contributes to a long stable life and vibration resistance. An optional mounting bracket provides easy retrofit, and an optional cover lock adds security. Ranges are from 8 to 6000 psi (0.6 to 414 bar).

SPECIFICATIONS
Approval: UL listed, cUL certified; Class I, Groups ABCD; Class II, Groups EFG: Class III
Storage Temperature: -50°C to 95°C (-58°F to 203°F)
Process Temperature: Stainless Steel Diaphragm: -17 to 160°C (0 to 320°F) Polyimide Diaphragm: -28 to 93°C (-20 to 200°F)
Ambient Temperature: -50 to 80°C (-58 to 176°F). Setpoint typically shifts less than 1% of range for a 28°C (50°F) ambient temperature change.
Shock: Setpoint repeats after 75 g, 10 ms duration
Vibration: Setpoint repeats after 15 g, 10-2000 Hz
Enclosure: 300 series stainless steel
Setpoint Repeatability: ±1% of adjustable range
Switch Output: One or two SPDT, factory sealed leadwires.
Mechanical contact life: 10 million cycles.
Electrical Ratings: 5 amps @ 250 Vac, 5 amp resistive and 3 amps inductive @ 28 Vdc. Silver contacts
Enclosure: 300 stainless steel; NEMA-4X, -7, -9 and IP66
Weight: Approximately 0.34 kg (12 oz)
Electrical Connection: 1/2 NPT (male) with 1.8 m (72') lead wires.
Pressure Connection: 1/4 NPT (Female), 316 SS

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