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12 Series Sensor Type R Temperature Switch
Brand: United Electric Controls Ltd12 Series hazardous location switches are ideal for operation in tough applications where space is at a premium. A snap-action Belleville spring assembly is used in most models to provide vibration resistance and prolonged switch life. The 316 stainless steel enclosure and hermetically sealed switch provide rugged protection from the environment.
Approved for use in hazardous locations worldwide, the 12 Series is installed within applications ranging from offshore oil rigs to rotating equipment, and more.
Features- UL, cUL, ATEX and IECEx approved for Div. 1 or Zone 1 hazardous locations; CE compliant
- Dual seal compliant to ANSI/ISA 12.27.01 & NEC 501.17
- Vibration Resistant
- Hermetically Sealed Micro-Switch
- Mounting bracket available for retrofit applications
Specifications
Adjustment Type
- External Ground Screw
- Factory Set (Pre-Set)
Ambient Temperature Range
- Set Point Shifts less than 1 % of Range for a 10° C (50° F) Temperature 28° C (82.4° F) Ambient Temperature Change. Slight Ambient Effects for 25 to 50' Extra Capillary Length on Temperature Switch Model
Applications
- Chemical Plants & Refineries
- Instrument Panels
- Offshore Platforms
- Rotating Equipment
Approvals & Certifications
- ABNT NBR IEC 60079-0, 60079-1, 60079-31 Certificate # UL-BR 15.0174X
- ATEX Directive 94/9/EC II 2 G Ex d IIC T6 Gb II 2 D Ex Tb IIIC T85° C (185° F) Db Tamb: -50° to 80° C (-58° to 176° F) UL International Demko A/S (N.B.# 0539) Certificate # Demko 08-ATEX-0717128X EN 60079-0, 60079-1, 60079-31, II 1 G Ex ia IIC T6 Ga Tamb
- CE
- CRN
- CSA C22.2 No. 14, 25 & 30 - File # E40857
- Dual Seal Certified to ANSI/ISA 12.27.01 (Meets CEC & NEC Secondary Seal Requirements) Standard on Straight
- EAC Flameproof Junction Box, Pre-Wired
- GOST-R 0Ex ia IIC T6 Ga x Tamb: -50° to 60° C (-58° to 140° F), 1Ex d IIC T6 Gb x Tamb: -50° to 80° C (-58° to 176° F) NANIO CCVE Certification Center Certificate # RU C-US.ГБ05.B.01185 ГOCT P MЭК 60079-0, 60079-11, 60079-1, 60079-31, ГOCT 31610.26, IE
- GOST-U 1 ExdIICT6X Tamb: -56° to 85° C (-68.8° to 185° F) SVODOTSTVO #719 by DVSTS VE (TCCExEE)
- IEC Ex Certified Ex d IIC T6 Gb Ex Tb IIIC T85° C (185° F) Db IP66 Tamb. = -50° to 80° C (-58° to 176° F) IEC 60079-0, 60079-1, 60079-31 IEC 60079-0, 60079-1, 60079-31 Certificate # IECEx UL 14.0072X, Ex ia IIC T6 Ga Tamb. = -50° ≤ Tamb ≤ 60° C IEC 60079-
- INMETRO Ex d IIC T6 Gb Ex Tb IIIC T85° C Db IP66 -50° C ≤ Tamb ≤ 80° C
- Low Voltage Directive (LVD) 2006/95/E
- PESO Ex ia IIC T6 Ga Tamb: -50° to 60° C (-58° to 140° F) UL International Demko A/S (N.B.# 0539) Certificate # P305465 / 1 EN 60079-0, 60079-11, 60079-26
- PED: 97/23/E
- UL (C,US) 508 & 1203, Class I, Div. 1 & 2, Groups A, B, C, D Class II, Div. 1 & 2, Groups E, F, G Class III Class I, Zone 1, Group IIC Enclosure Typical 4X
Approvals & Certifications
- ISO 9001
Bulb Material
- 304 Stainless Steel
Capillary Length
- 6 feet (1.82 metres)
Conduit Connection
- 1/2” NPT Male
- M20
Cover Type
- Cover Lock
Deadband
- Temperature Deadband: Typically 2 % of Range Under Laboratory Conditions (21.11° C (70° F) Ambient Circulating Bath at Rate of 0.5° F Per Minute Change)
Electrical Connectors
- 1/2” NPT Male with 72” Leadwires
- 4-Terminal DIN Connector (DIN 43650 Form A)
- Common
- Junction Box
- M20 Metric Threads, 72” Leads
Electrical Contacts
- Bifurcated Gold Contacts
- Normally Closed
- Normally Open
- Silver
Electrical Rating
- 1 A at 125 Vac, 1 A Resistive & 0.5 A Inductive at 28 Vdc
- 5 A at 125/250 Vac, 5 A Resistive & 3 A Inductive at 28 Vdc
Enclosure, Body Material
- 316 Stainless Steel
Environmental Protection
- Flameproof
- Intrinsically Safe
- IP66
- Typical 4X
- Typical 7
- Typical 9
- Vibration-Proof
Fill Material
- Non-Toxic Oil
Mounting
- Bracket
NACE & NIST
- NACE MR-0175 Compliant
Name Plate, Tag Material
- Paper, Stainless Steel ID Tag & Wire Attachment, Text Limited to 2 Lines of 25-Characters Each, Max.
NPT Connection
- 1/2” NPT Female
Process Connection Material
- 316 Stainless Steel
Process Temperature
- Maximum
Repeatability
- Set Point Repeatability: ± 1 % of Adjustable Range
Service
- Oxygen Service Cleaned in Accordance with ASTM G93, Verification Typical 1, Tests 1 through 3
Set Point - Decreasing
- -90° to 343.3° C (-130° to 650° F)
Set Point - Increasing
- -90° to 343.3° C (-130° to 650° F)
Shock
- Set Point Repeats after 15 G, 10 millisecond Duration
Stem Material
- Immersion Stem: 316 Stainless Steel
Storage Temperature
- -50° to 80° C (-58° to 176° F)
Switch Type
- One SPDT, Hermetically Sealed
Thermowell
- 316 Stainless Steel
Vibration
- Set Point Repeats after 2.5 G, 10 to 2000 Hz