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  2. UE Controls 120 series Explosion- Proof Pressure, Vacuum, Differential Pressure and Temperature Switches. (H121 )

UE Controls 120 series Explosion- Proof Pressure, Vacuum, Differential Pressure and Temperature Switches. (H121 )

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Heavy industrial processes rely on 120 Series pressure and temperature switches to protect equipment and personnel while preserving process uptime. The 120 Series is simple to install in hazardous location areas and perform critical alarm, safety and emergency shutdown functions.

H121 - One SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit Type

$ 1.00 1.0 USD $ 1.00

1.00 USD

  • 120 sensor type
  • Model 358-376
  • Model 610-616
  • Model 15875
  • Model 450-454
  • Model 700-705
  • Model 550-555
  • Model 126-164
  • Model 270-274
  • Model S126B-S164B

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United Electric Controls
Pressure switches, temperature switches, thermocouples, RTDs, pressure and temperature transmitters, gas detection

The 120 Series offers a variety of pressure, vacuum, differential pressure and temperature ranges, as well as process connections, wetted materials and sensor types.

Typical applications that utilize the 120 Series include rotating equipment such as pumps, turbines, and compressors, heat tracing, combustion systems, and oil, gas and chemical processing.

Parameters available in the datasheet of the documents section


Specifications for UE Controls 120 series Explosion- Proof Pressure, Vacuum, Differential Pressure and Temperature Switches. (H121 )

Model 358-376 Not selected or 358 or 361 or 376
Model 610-616 Not selected or 612 or 614
Model 15875 Not selected or 15875
Model 450-454 Not selected or 450 or 452 or 453 or 454
Model 700-705 Not selected or 701 or 702 or 703 or 704 or 705
Model 550-555 Not selected or 550 or 552 or 553 or 554 or 555
Model 126-164 Not selected or 126 or 134 or 137 or 144 or 146 or 156 or 164
Model 270-274 Not selected or 270 or 274
Model S126B-S164B Not selected or S126B or S134B or S137B or S144B or S146B or S156B or S164B
120 sensor type H121 - One SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit Type
UEONLINE 120 Series Datasheet.pdf
Download

Pressure

  • J120 - One SPDT; epoxy coated enclosure; internal adjustment with no reference scale, dual conduits
  • H121 - One SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit Type H122 - Two SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit

Differential Pressure

  • J120K - One SPDT; epoxy coated enclosure; internal adjustment with no reference scale, dual conduits
  • H121K - One SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit Type H122K - Two SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit

Temperature

  •  B121 - Immersion stem; one SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit
  • B122 - Immersion stem; two SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit
  •  C120 - Immersion stem; one SPDT; epoxy coated enclosure; internal adjustment with no reference scale, dual conduits
  • E121 - Bulb and capillary; one SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit
  • E122 - Bulb and capillary; two SPDT; epoxy coated enclosure; external adjustment with reference dial, single conduit
  • F120 - Bulb and capillary; one SPDT; epoxy coated enclosure; internal adjustment with no reference dial, dual conduits
  • 820E - Bulb and capillary; one SPDT; external adjustment and temperature indication, dual conduits Type 822E - Bulb and capillary; two SPDT; external adjustment and temperature indication, dual conduits


  • Standard product approvals include cULus, ATEX & IECEx
  • Optional approvals for Russia, Ukraine, China, India, Korea, Brazil and Taiwan
  • SIL2 Certified per IEC 61508:2010
  • Many models compliant to NACE MR0175
  • Internal adjustment hex screw or external adjustment via calibrated dial(s) with tamper-resistant cover
  • Integral cover lock
  • SPDT, DPDT or dual SPDT output
  • Optional hermetically sealed micro-switch
  • Wide variety of sensor materials
  • Optional Hastelloy® and Monel® sensor material for corrosive media
  • Wide adjustable deadband models
  • Heat tracing temperature models


  • STORAGE TEMPERATURE: -65 to 160°F (-54 to 71°C)
  • AMBIENT TEMPERATURE LIMITS: -58 to 160°F (-50 to 71°C); models 36-39, 520-525, 540-548, 701-705, 15834-15839: 0 to 160°F (-17 to 71°C); types 820E, 822E: -40 to 160°F (-40 to 71°C) set point typically shifts less than 1% of range for a 50°F (28°C) ambient temperature change; less than 2% for types E121& E122
  • SET POINT REPEATABILITY: Temperature models: Type B, C and F: ±1% of full scale range Type E: ±2% of full scale range Pressure models 126-164, S126B-S164B, 171-174, 270- 274, 358-376, 520-535, 540- 543, 701-705, 15622, 15834,-15839: ±1% of full scale range; models 450- 457, 550-559: ±1/2% of full scale range; models 36-39, 183-194, 483-494, 544- 548, 565-567, 612-680, 15875: ±1-1/2% of full scale range
  • SHOCK: Set point repeats after 15 G, 10 millisecond duration
  • VIBRATION: Set point repeats after 2.5 G, 5-500 Hz
  • ENCLOSURE: Die cast aluminum, epoxy powder coated; gasketed; cover lock; internal set point lock standard on types J, C, F; gasketed stainless steel tamper-resistant dial cover on types B, H, E; aluminum nameplate
  • ENCLOSURE CLASSIFICATION: Certified to enclosure type 4X. Class I, Division 1 product meets enclosure type 7; Class II, Division 1 product meets enclosure type 9. Certified to IP66 requirements
  • SWITCH OUTPUT: One or two SPDT; dual switch may be separated up to 100% of range; except type 822E where switch #2 can be set up to 25% of range span below switch #1 setpoint; switches may be wired “normally open” or “normally closed”.
  • ELECTRICAL RATING*: 15A 125/250/480 VAC resistive (standard), 2A @ 30 VDC, 1A @ 48 VDC, 0.5A @ 125 VDC; except types J120-15622, 15834-15839, H121-15875: 20A 125/250/480 VAC resistive, 6A @ 30 VDC, 0.5A @ 125 VDC, 0.25A @ 250 VDC; except types B121- 13272, B122-13322, E121-13273, E122-13321: 22A 480 VAC resistive, 2A @ 30 VDC, 1A @ 48 VDC, 0.4A @ 125 VDC.
  • REFERENCE SCALES: Types B, E & H: external dial. Scale divisions vary with range (see model charts) WEIGHT 3-8 lbs. Varies with type and model
  • ELECTRICAL CONNECTION: Type H, B, E; one 3/4" NPT E/C; type J, C, F, 820E, 822E; two 3/4" NPT E/C; terminal block standard
  • PRESSURE CONNECTION: Models S126B-S164B, 171-194, 483-494, 520-535: 1/2" NPT (female); models 565-567: 1-1 ⁄ 2" flush mount connection; models 540-548: 1/8" NPT (female); all others: 1/4" NPT(female)
  • TEMPERATURE ASSEMBLY: Bulb and capillary: 6 feet 304 stainless steel (standard) except for E121-13273 and E122-13321: 10 feet; Fill: Non-toxic oil filled Immersion stem: Nickel-plated brass (standard) except for B121-13272 and B122-13322: stainless steel.
  • TEMPERATURE DEADBAND: Type F120, 820E, 822E: typically 1%; type B-, C-, and E- 121 and 122: typically 2% of range under laboratory conditions (70°F [21°C] ambient circulating bath at rate of 1/2°F per minute change)
  • PRESSURE DEADBAND: See individual model charts on pages 6-14. Consult UE for deadbands on switch options
  • DIFFERENTIAL PRESSURE: Differential pressure indication available types H121K and H122K with option M210
  • INDICATOR: (OPTION M210) (check model availability under options); accuracy approximately 1% mid 50% of range, 3% at ends; window is plexiglass and gasketed; indicator may be field adjusted for approximately ±1% accuracy at any set point within range
  • TEMPERATURE INDICATION: Temperature indication available types 820E and 822E. Indication accuracy is ±1% of adjustable range


UE declarations and third-party issued certifications are available for download at www.ueonline.com/certs

UNITED STATES AND CANADA

  • Class I, Division 1 and 2, Groups B, C & D
  • Class II, Division 1 and 2, Groups E, F & G
  • Class III
  • Class I, Zone 1, Group IIB + H2 T6
  • Tamb: -50°C to 71°C
  • Enclosure Type 4X per
  • UL 50 (USA), IP66 per EN 60529 (Canada) UL Listed (USA), cUL Listed (Canada)
  • Pressure: 1203; CSA C22.2
  • No. 25 & 30 - File # E40857
  • Temperature: 1203; CSA C22.2
  • No. 25 & 30 - File # E43374
  •  Canadian registration number (CRN) for Canadian provinces can be found at www.ueonline.com

EUROPE

  • ATEX Directive (2014/34/EU)
  • II 2 G Ex db IIC T6 Gb
  • II 2 D Ex tb IIIC T85°C Db IP66
  • Tamb = -40°C to +75°C
  • UL International DEMKO A/S (N.B.# 0539)
  • Certificate # DEMKO 09 ATEX 0815573X
  • EN 60079-0, 60079-1, 60079-31
  • II 1 G Ex ia IIC T6 Ga (OPTIONAL – code M405)
  • (not available types 820E, 822E)
  • Tamb = -50°C < Tamb < +60°C
  • UL International DEMKO A/S (N.B.# 0539)
  • Certificate # DEMKO 11 ATEX 1105261X
  • EN 60079-0, 60079-11

Pressure Equipment Directive (PED) (2014/68/EU)

  • Compliant to PED UL 508, UL 61010
  • Products rated lower than 7.5 psi are outside the scope of the PED

Low Voltage Directive (LVD) (2014/35/EU)

  •  UEC compliant to LVD EN 61058-1, EN 61010-1
  • Products rated lower than 50 VAC and 75 VDC are outside of the scope of the LVD
  •  The Low Voltage Directive does not apply to products for use in hazardous locations

RUSSIA

  • (OPTIONAL – code M406)
  • Certificate ТС RU-C-US.ГБ05.B.01185
  • NANIO CCVE Certified
  • Type 120, 121 and 122
  • 0Ex ia IIC T6 Ga X
  • Tamb:-50°C to + 60°C
  • ГОСТ Р МЭК 60079-11-2010; ГОСТ Р
  • МЭК 60079-0-2011; ГОСТ 31610.26-2012/
  • IEC 60079-26-2006
  • Type 120, 121 and 122,820 &822
  •  1Ex d IIC T6 Gb X
  • Tamb:-40°C to + 75°C
  • ГОСТ IEC 60079-1-2011; ГОСТ Р МЭК
  •  60079-0-2011

UKRAINE

  •  Gosnadzorohrantruda Permit (OPTIONALcode M404)
  •  СВIДОЦТВО #720 by DVSTS VE (TCCExEE)
  • 1ExdIICT6X
  • Tamb = -56°C to +85°C (types 120, 121 & 122)
  • Tamb = -40°C to +71°C (types 820 & 822)
  • ГOCT 12.2.007.0, ГOCT 22782.0, ГOCT 22782.6

CHINA

  •  CQST Certified (OPTIONAL – code M408) }
  • (120,121,122)Pressure: CNEx15.2540X
  • (120,121,122,820,822)Temperature:
  •  CNEx15.2541X
  • Ex d IIC T6 Gb
  • Ex tD A21 T+85°C IP66
  • Tamb. = -40°C to +75°C
  • GB3836.1,GB3836.2 & GB12476

INTERNATIONAL CERTIFICATION* (INCLUDES AUSTRALIA)

  • IECEx Certified
  • Ex d IIC T6 Gb
  • Ex tb IIIC T85°C Db IP66
  •  Tamb. = -40°C to +75°C
  • IEC 60079-0, 60079-1, 60079-31
  • Certificate # IECEx UL 03.0001X
  • Ex ia IIC T6 Ga
  • IEC 60079-0, 60079-11
  • Certificate # IECEx UL 14.0075X

INDIA

  • Ex d IIC T6 Gb
  •  PESO: CCEs Identification# P314108/1
  • EN 60079-0, 60079-1, 60079-31
  • Ex ia IIC T6 Ga (OPTIONAL – code M405)
  • PESO: CCEs Identification# P305465/1
  • EN 60079-0, 60079-11

KOREA

  • KOSHA, Article 34 of Industrial Safety and Health Law (OPTIONAL – code M395)
  •  Ex d IIC T6
  • -40°C < Tamb < +75°C
  • Pressure: Certification# 10-AV4BO-0710 for J120, H121, H122, H122P
  • Differential Pressure: Certification# 10-AV4BO-0711 for J120K, H121K, H122K
  •  Temperature: Certification# 10-AV4BO-0712 for (B.E) (121, 122)/C120/F120
  • Temperature Certification # 10-AV4BO-712 for 820E/822E

BRAZIL

  • INMETRO(OPTIONAL – code M391)
  • Ex d IIC T6 Gb
  • Ex tb IIIC T85°C Db IP66
  • -40°C ≤ Ta ≤ +75°C
  • UL-BR 15.0179X
  • ABNT NBR IEC 60079-0
  • ABNT NBR IEC 60079-1
  • ABNT NBR IEC 60079-31
  • Ex ia IIC T6 Ga
  • -50°C ≤ Ta ≤ +60°C
  • UL-BR 15.0169X  
  • ABNT NBR IEC 60079-0
  •  ABNT NBR IEC 60079-11
  •  ABNT NBR IEC 60079-26

TAIWAN*

  •  ITRI
  • Temperature Switch - ML041200701BZ4
  •  Pressure Switch – ML041200701AE7,
  • ML041200701BY3, ML041200701C40, ML041200701D31

Product Image
UE Controls 120 series Explosion- Proof Pressure, Vacuum, Differential Pressure and Temperature Switches. (H121 )

$ 1.00 1.0 USD $ 1.00

1.00 USD