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GR2/GR4 Pressure Switch
Brand: Delta MobreyCompact switch range designed for installing in tight spaces such as those found in panel applications.
Features- Compact and rugged design
- Hermetically sealed snap switch UL and CSA listed
- ATEX - Flameproof CENELEC EEx d IIC option
- ATEX - Intrinsically Safe ATEX Ex ia IIC option
- Weatherproof IP66 / NEMA 4
- Stainless steel body option NEMA 4X rating
- High over-range models up to psi: 15,000 (kPa: 100,000, bar: 1,000)
- Ranges available between psi: 4 to 10,000 (kPa: 25 to 70,000, bar: 0.25 to 700)
- Variety of wetted parts including NACE MR-01-75 compatibility option
- Optional weatherproof, ATEX EEx e, ATEX Ex ia or ATEX - Flameproof EEx d IIC terminal enclosures
- Field adjustable
- Accuracy 1%
Specifications
Brand
Adjustment Type
- Field Adjustable
Ambient Temperature Range
- Operating: -25° to 60° C (-13° to 140° F) - Model GR4 (Ranges U7 to Y4/UK to YF)
- Operating: -40° to 85° C (-40° to 185° F) - Model GR2 & GR4 (Ranges dB to FA/DK to F6)
Applications
- Chemical Industry
- OEM Applications
- Oil & Gas Applications
- Petrochemical
Approvals & Certifications
- ATEX Ex ia IIC
- CE
- CENELEC EEx d IIC
- CSA Class I, Grade A, B, C, D, Class II, Groups E, F, G, Div. 1 & 2
- Ex II 1 GD, II 2 G
- IEC Ex
- NEC 500: Class I, Grade A, B, C, D, Class II Groups E, F, G Div. 1 & 2
- UL Class I, Grade A, B, C, D, Class II, Groups E, F, G Div. 1 & 2
BSP Connection
- 1/4” BSPT Female
Cable Length
- Factory Sealed Flying Lead: 18” (0.45 metres) with 1/2”-14 NPT External Conduit
Conduit Connection
- 1/2”-14 NPT External
- M20 x 1.5
Diaphragm Material
- 316 Stainless Steel
- Nickel Alloy (Monel)
Electrical - Free Leads
- Flying Leads: 18 AWG, 1.19 mm²
- Terminal Enclosures: 14 AWG, 2.5 mm²
Electrical Contacts
- Gold Alloy
- Silver
- Silver Contact with Gold Flash
Electrical Rating
- 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
- UL/CSA: 1 A at 125 Vac
- UL/CSA: 1 A at 30 Vdc
- UL/CSA: 11 A at 110/250 Vac
- UL/CSA: 2 A at 30 Vdc
- UL/CSA: 5 A at 250 Vac
- UL/CSA: 5/0.5 A at 30/125 Vdc
Enclosure Finish
- Epoxy Paint for Aluminum Enclosure
Enclosure, Body Material
- Aluminum
- Stainless Steel
Environmental Protection
- Flameproof
- Intrinsically Safe
- IP65
- IP66
- NEMA 4
- NEMA 4X
- Weatherproof
Mounting
- 2” Pipe Mounting Bracket
Mounting Position
- Vertical
NACE & NIST
- NACE MR-0175
Name Plate, Tag Material
- Stainless Steel
NPT Connection
- 1/2”-14 Female NPT
- 1/2”-14 Male NPT
- 1/4”-18 Female NPT
Operating Pressure
- psi: 0 to 15,000 (kPa: 0 to 100,000, bar: 0 to 1,000)
Process Connection Material
- 316 Stainless Steel
- Nickel Alloy (Monel)
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: 0.25 to 700
- kPa: 25 to 70,000
- psi: 4 to 10,000
Set Point - Increasing
- bar: 0.25 to 700
- kPa: 25 to 70,000
- psi: 4 to 10,000
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 Withstand Voltage Across Contacts & between Open Contacts: 500 V
- Impulse Withstand Voltage Across Contacts: 800 V
- Insulation Voltage UL/CSA: 600 V
- Insulation Voltage: 125 V
- Insulation Voltage: 250 V
- Withstand Voltage: 1.5 kV between Live Parts & Earth/Ground
- Oil & Gas
- Chemical
- Petrochemical
- OEM
