Have a live application? Use our United Electric Product Overview and Quick Selection Guide to configure the model and options for your requirement:
ABLE are United Electric’s Exclusive Representative for Sales and Service in the UK and Ireland and can assist you and your customers in the following areas:
- Application expertise
- Our factory trained engineers offer after sales support, service and maintenance (contracts available)
- Offer advanced United Electric pressure / temperature switch product training, either in-person or via video call.
United Electric 400 Series Differential Pressure / Temperature Switch
ABLE Instruments are United Electric’s Exclusive Representative for Sales and Service in the UK and Ireland, including the 400 Series. Simple to install and operate the UE 400 series provides end-users multi-output alarm, safety and emergency shutdown functionality. It carries global agency certification and as an electromechanical switch, it can safely operate independently of the control system and switch reliably when called upon, free from potential communication errors or cyber concerns.
The United Electric 400 Series is a versatile family of vacuum, pressure, differential pressure and temperature switches for applications that require single or multiple switching capabilities. Dual and triple switch versions provide multi-output for alarm and shutdown, pre-alarm and alarm, high/low limit or level staging functions. A wide variety of microswitch and process connection options, along with a weather-tight enclosure, make the UE 400 Series an ideal choice for most ordinary location applications. Its global use is assured with approvals and certifications to agency standards. Widely used throughout the process industries, the United Electric 400 Series provides threshold protection and control for many critical functions. Typical installations are found in industrial gas production, energy generation including pumps, turbines and compressors, pulp and paper, and water and wastewater treatment.
Features:
- Low and/or high limit alarm and safety shutdown via one, two or three independent switches, separated up to 100% of range
- Quick and easy installation with ample access to wiring compartment and simple set point adjustment using reference dial or calibrated gauge
- Application versatility achieved through a variety of ranges, microswitches, sensors and process connections
- Replaces a switch and a gauge in differential pressure applications when using optional visual indication
- 1, 2 & 3 switch outputs
- Optional ATEX or EAC intrinsic safety compliance
- Wide variety of pressure sensors and materials
Have a particular application / project in mind? We’d welcome a call on +44 (0) 1189 169 420, or email us now at [email protected]
Typical installations are found in industrial gas production, energy generation including asset control of pumps, turbines and compressors, pulp and paper, and water and wastewater treatment.
400 Series Specifications:
Ambient Temperature Limits | 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 |
|---|---|
Set Point Repeatability | Temperature: ± 2% of full scale range Pressure: Models 126-376, 520-535, 540-547, 570-572, S126B-S164B: ± 2% of full scale range Models 440-457, 550-559: ± 1% of full scale range Models 610-614: ± 3% 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 aluminium, epoxy powder coated, gasketed, captive cover screws |
Enclosure Classification | Designed to meet enclosure type 4X requirements |
Switch Output | One, two or three SPDT switches, may be separated up to 100% of range, except models 521-524, 531-534: 50%; models 520, 525, 530, 535, 570-572: 30%; switches may be wired “normally open” or “normally closed” |
Electrical Rating | 15 A 125/250/480 VAC resistive. Electrical switches have limited DC capabilities; at 24-30 VDC, 2A resistive and 1A inductive; at 125 VDC, 0.5A resistive and 0.03A inductive. Consult ABLE for additional information. |
Weight | Approx. 3 to 7.5 lbs.; varies with model |
Electrical Connection | One 3/4” NPT and two 7/8” diameter knockouts |
Pressure Connection | All models 1/4” NPT (female) except models S126B-S164B, 520-535: 1/2” NPT (female); models 540-547: 1/8″ NPT (female) |
Temperature Assembly | ‘E’ types use the same assemblies as ‘F’ types, however, range spans are limited due to use of reference dials Bulb and capillary: 6 feet 304 stainless steel Immersion stem: models 120 &121: nickel-plated brass; optional 316L stainless steel available |
Fill | Temperature Models: Non-toxic oil filled |
Temperature Deadband | Type F typically 1% and type E, B & C typically 2% of range under laboratory conditions (70°F ambient circulating bath at rate of 1/2°F per minute change) |
Differential Pressure Indicator (Option M210) | Differential pressure indication available J400K, J402K models 147-S157B; accuracy approximately 1-1⁄2% 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 |
OPTIONAL APPROVALS | |
United States / Canada | Type 400 & 402 UL listed, cUL Certified Pressure: UL 508; CSA C22.2 No. 14, file # E42272 Temperature: UL 873; CSA C22.2 No. 24, file # E10667 Type 403 UL Recognised, cUL Recognised Pressure: UL 508; CSA C22.2 No. 14, file # E42272 Temperature: UL 873; CSA C22.2 No. 24, file # E10667 All Types FM Approved Pressure: Class 3510 Temperature: Class 3545 |
Europe | ATEX Directive (94/9/EC) II 1 G EEx ia IIC T6 (OPTIONAL – code M405) Tamb = -50°C to +60°C UL International DEMKO A/S (N.B.# 0539) Certificate # DEMKO 03 ATEX 0335063 EN 50014, 50020 & 50284 Low Voltage Directive (LVD) (73/23/EC & 93/68/EEC) Compliant to LVD Products rated lower than 50 VAC and 75 VDC are outside of the scope of the LVD Pressure Equipment Directive (PED) (97/23/EC) Compliant to PED Products rated below 7.5 PSI are outside the scope of PED |
Russia | Gosgortechnadzor Permit (OPTIONAL – code M406) 0ExiaIICT6 Tamb = -50˚C to +60˚C NANIO CCVE Certification Center Certificate # ROSS US.GB05.Bo2933 GOST R 51330.0, 51330.1, 51330.10 & 51330.14 |
