DIMENSIONS (INCHES) 
360 Series adjustable pressure switch is a compact design for low, mid and high-pressure applications.
The housing and pressure port are made of 316 Stainless Steel. The switch housing is a welded, hermetically sealed, explosion proof assembly available as a single pole double throw (SPDT) or double pole double throw (DPDT) configuration. An internal, slotted pressure adjustment wheel is accessible through a tethered cover plate for easy setting and field adjustment.
The combination of 316 Stainless Steel construction and hermetically sealed switching make the 360 Series particularly well suited for various oil & gas applications including offshore platforms, safety panels, pipelines, as well as other hazardous location process applications.
Click here for information on our other Pressure Switches.
Storage Temperature: -58° to 203°F
(-50° to 95°C)
Operating Ambient Temperature: -58° to 203°F
(-50° to 95°C). Set point shifts less
than 1% of range for a 50°F (28°C)
ambient temperature change
Media Temperature:
Model 360: -50° to 350°F (-46° to 177°C)
Models 361 & 362: -10° to 200°F (-23° to 93°C)
Set Point Repeatability:
Model 360: ± 1% of adjustable range
Models 361 & 362: ± 1.5% of adjustable range
Shock: Set point repeats after 75G's, 10 milliseconds
(except Model 360, range A in the inverted
position which is 40G's 10 milliseconds)
Enclosure: 316 stainless steel
Enclosure Classification: NEMA-4X; IP66 certified.
Class I, Division 1 product is designed to meet
NEMA7. Class II, Division 1 product is
designed to meet NEMA 9
Switch Output:
Code S: One SPDT, hermetically sealed
Code D: Two SPDT for DPDT action, hermetically sealed
Electrical Ratings: 5 A @ 125/250 VAC resistive
and 3 A @ 28 VDC inductive
Electrical Connection: 1/2" NPT (male) with 72" wires
Weight: Approximately 29 ounces (0.82 kg)
Pressure Connection: 1/4" NPT (female) or 1/2" NPT (female)
(SF-250-CX Autoclave available on Model 361)
Approvals United States & Canada:
Class I, Division 1 & 2, Groups A, B, C & D
Class II, Division 1 & 2, Groups E, F & G
Class III
Class I, Zone 1, Group IIC
NEMA 4X
UL Listed, cUL Certified
Pressure: UL 508, 698; CSA C22.2 No. 14-M91,
25-1966, 30-1986, CEC Part I - File #E40857
| Model | Port Size | Dim A | Dim B |
| 360 | 1/4" NPT | 5/8" | 3/4" |
| 1/2" NPT | 1" | 1" | |
| 361 | 1/4" NPT | 1-1/16" | 3/4" |
| 1/2" NPT | 1-1/2" | 1" | |
| Autoclave, SF-250-CX | 1-1/16" | 15/16" | |
| 362 | 1/4" | 1-1/16" | 3/4" |
| 1/2" | 1-1/2" | 1" |
| Pressure Model Chart | ||||||||
| Model & Range Code | Adjustable Range (low end on fall, high on rise) | Deadband | Over Range Pressure* | Proof Pressure** | ||||
| psi | bar | psi | bar | psi | bar | psi | bar | |
| Model 360, welded Inconel® diaphragm with 316 stainless steel pressure connection | ||||||||
| A | 2 to 22 | 0.1 to 1.5 | 0.4 to 3.5 | 27.6 mbar to 0.2 bar | 600 | 41.4 | 1200 | 82.7 |
| B | 12 to 90 | 0.8 to 6.2 | 1 to 12 | 0.1 to 0.8 | 600 | 41.4 | 1200 | 82.7 |
| Model 362, 303 stainless steel piston and Buna N O-Ring with 316 stainless steel pressure connection | ||||||||
| A | 55 to 300 | 3.8 to 20.7 | 10 to 35 | 0.7 to 2.4 | 3000 | 206.8 | 4500 | 310.3 |
| B | 150 to 650 | 10.3 to 44.8 | 15 to 75 | 1.0 to 5.2 | 3000 | 206.8 | 4500 | 310.3 |
| Model & Range Code | Deadband Lower 75% Range Span | Deadband Top 25% Range Span | Over Range Pressure psi | Proof Pressure psi | ||||
| psi | bar | psi | bar | psi | bar | |||
| Model 361, 303 stainless steel piston and Buna N O-Ring & Teflon® seal with 316 stainless steel pressure connection | ||||||||
| A | 475 to 1500 | 32.8 to 103.4 | 50 to 175 | 3.4 to 12.1 | 325 max | 22.4 | 6500 | 18500 |
| B | 900 to 3000 | 62.1 to 206.8 | 80 to 300 | 5.5 to 20.7 | 600 max | 41.4 | 9000 | 18500 |
| C | 1800 to 9000 | 124.1 to 620.5 | 150 to 1000 | 10.3 to 68.9 | 2000 max | 137.9 | 10000 | 18500 |
| *Over Range Pressure: The maximum pressure that may be applied continuously without causing damage and maintaining set point repeatability. | ||||||||
| **Proof Pressure: The maximum pressure to which a pressure sensor may be occasionally subjected, which causes no permanent damage. The unit may require calibration (e.g. start-up, testing). | ||||||||
| Deadband Notes: Model 361 ranges are expressed as the lower 75% and top 25% of the range span because of the operating characteristics of the piston/o-ring assembly. | ||||||||
| Inconel® is a registered trademark of the INCO family of companies. | ||||||||
| PLEASE CALL 1-800-253-2497 TO ORDER THESE ITEMS | ||||
| A=Model | B=Pressure Connection | C=Range | D=Switch | E=Enclosure Material |
| 360 | 1= 1/4" NPT | See Model Chart | S= SPDT | 1= 316 stainless steel |
| 361 | 2= 1/2" NPT | A | D= DPDT | |
| 362 | 3= SF-250-cx Autoclave female (model 360 only) | B | ||
| C | ||||
| F=Options | ||||
| 0140* | Gold contacts, 1 A @ 125 VAC resistive, 0.5 A @ 28VDC inductive | |||
| M201 | Factory set switch, specify increasing or decreasing pressure | |||
| M276 | Range indicated on nameplate in bar or mbar, factory selected | |||
| M277 | Range indicated on nameplate in kPa or MPa , factory selected | |||
| M278 | Range indicated on nameplate in Kg/cm2 | |||
| M407 | CE compliance to pressure equipment directive (category IV). Nameplate will reflect range in bar and notified body #0036 | |||
| M423 | ATEX flameproof compliant junction box, pre-wired (not UL approved) | |||
| M444 | Paper ID tag M446 Stainless steel ID tag and wire attachment | |||
| M446 | Stainless steel ID tag and wire attachment | |||
| M460 | External ground screw; required for non-metallic conduit systems (ATEX installations only) | |||
| M513 | UL approved, explosion proof junction box, pre-wired (not approved for ATEX or as NEMA-4X) | |||
| M515 | DIN connector - 4 terminal; conforms to DIN 43650, Form A (not approved for Class I, Div. 1 & 2 or ATEX flameproof requirements). Not available on DPDT switch output | |||
| M540 | Viton¨ O-ring plus standard connection material (deadband and low end of range may increase slightly). Not available on Model 360 | |||
| M550 | Oxygen service cleaning; internal construction and materials may change (includes Viton¨ O-ring when applicable) | |||
| M928 | Stainless steel pressure snubber integrated into pressure connection. Not available model 360 or with autoclave pressure connection | |||
| NC1 | NACE Certificate. Not available on models 361, 362 | |||
| * Switch has limited DC capabilities. Consult factory for details. | ||||
| Viton¨ is a registered trademark of Dupont Dow Elastomers. | ||||