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S21/S22/S24 Pressure Switch
Brand: Delta MobreySpecifications
- Weatherproof and Flameproof models ATEX and NEC 500
- NACE MR-01-75 compatibility
- Ranges available up to psi: 10,000 (kPa: 70,000, bar: 700)
- Maximum working pressure up to psi: 15,000 (kPa: 100,000, bar: 1,000)
- Field set point adjustment against a reference scale
- Hermetically sealed microswitch options
- Optional gold alloy contacts
- Terminal block for easy field wiring
- Safety vented design as standard
- PED 2014/68/EU CAT IV option
Specifications
Brand
Adjustment Type
- Field Adjustable Set Point
Ambient Temperature Range
- -25° to 60° C (-13° to 140° F)
Applications
- Chemical Industry
- OEM Applications
- Oil & Gas Applications
- Petrochemical
- Power
- Refining
Approvals & Certifications
- UKAS
- SIL 2 Certification
- ATEX Directive 2014/34/EU
- BSI Kitemark
- CE
- CSA (C,US) Class I, Groups C, D, Class II, Groups E, F, G
- Ex II 1 G, II 1/2 GD, II 2 GD
- ISO 9001
- LVD 2014/35/EU
- NEC 500
- PED 2014/68/EU
BSP Connection
- 1/4” BSPT Female
Cable Entry
- 1/2” NPT Female
- 3/4” NPT Female
- M20 x 1.5
Conduit Connection
- 3/4” Conduit
Diaphragm Material
- 316 Stainless Steel
- Nickel Alloy (Monel)
Electrical - Free Leads
- 14 AWG, 2.5 mm²
Electrical Connectors
- Terminal Block
Electrical Contacts
- Gold Alloy Contacts for Low Voltage Switching
- Gold-Plated Silver
Electrical Rating
- CSA & IEC: 1 A at 125 Vac
- CSA: 1 A at 30 Vac/dc
- CSA: 100 mA at 30 Vdc
- CSA: 15 A at 125/250/480 Vac
- CSA: 2 A at 30 Vdc
- CSA: 5 A at 110/250 Vac
- CSA: 5 A at 30 Vdc
- IEC 947-5-1 / EN 60947-5-1: 0.22 / 0.1 A at 125/250 Vdc
- IEC 947-5-1 / EN 60947-5-1: 0.3 A at 120 Vac
- IEC 947-5-1 / EN 60947-5-1: 0.6 / 0.3 A at 120/240 Vac
Enclosure Finish
- Light Gray Epoxy Resin Paint
Enclosure, Body Material
- Flameproof, Weatherproof & Intrinsically Safe: Austenitic Stainless Steel
- Flameproof: Die Cast Aluminum-silicon Alloy
- Weatherproof & Intrinsically Safe: Die Cast Zinc Alloy
Environmental Protection
- Flameproof Ex d
- Intrinsically Safe
- IP66
- NEMA 4
- NEMA 4X
- NEMA 7
- NEMA 9
- Weatherproof
Materials of Construction
- Mounting Bracket: Stainless Steel
Mounting
- 2” Pipe Mounting Bracket
Mounting Position
- Vertical
NACE & NIST
- NACE MR-0175
NPT Connection
- 1/2”-14 Female NPT
- 1/2”-14 Male NPT
- 1/4”-18 Female NPT
O-Ring Material
- Fluorosilicone
- Nitrile
Operating Pressure
- Maximum
Process Connection Material
- 316 Stainless Steel
Process Temperature
- 0° to 120° C (32° to 248° F) - Max.
Repeatability
- Set Point Repeatability: ± 1 % of Span at 20° C (68° F) Ambient
Seat / Seal Material
- O-Ring Seal: Nitrile (Buna-N)
- O-Ring Seal: Viton
Service
- Oxygen Service
Set Point - Decreasing
- bar: -1 to 700
- Inches Hg: -30 to 0 - Model S21
- Inches WC: -50 to 100 - Model S21
- kPa: -100 to 70,000
- mbar: -1,000 to 600 - Model S21
- psi: -14.5 to 10,000
Set Point - Increasing
- bar: -1 to 700
- Inches Hg: -30 to 0 - Model S21
- Inches WC: -50 to 100 - Model S21
- kPa: -100 to 70,000
- mbar: -1,000 to 600 - Model S21
- psi: -14.5 to 10,000
Storage Temperature
- -25° to 60° C (-13° to 140° F)
Switch Type
- DPDT Hermetically Sealed & Snap-Action Microswitch
- SPDT Hermetically Sealed & Snap-Action Microswitch
System Pressure
- bar: 1,000
- kPa: 100,000
- psi: 15,000
Voltage
- Impulse to Withstand Voltage Across Contacts: 0.5 kV
- Impulse to Withstand Voltage Across Contacts: 0.8 kV
- Insulation Voltage: 125 V
- Insulation Voltage: 250 V
- Withstand Voltage: 1.2 kV - Micro Switch
- Withstand Voltage: 2 kV between Live Parts & Earth/Ground
- Withstand Voltage: 500 V between Open Contacts
- Oil & Gas
- Chemical
- Petrochemical
- Refining
- Power
- OEM
