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800 Series Type 820E Models 1BS to 8BS Temperature Switch
Brand: United Electric Controls LtdFor applications that require a visual display of process temperature and set point, the 800 Series offers a highly readable four inch setting/indication scale. It is available in two versions: a Lexan enclosure for enclosure type 1 or 4 applications (with option M300), and with Lexan window and epoxy-coated aluminum enclosure for Division 1 explosion proof applications.
Features- Optional Russian, Ukrainian, Chinese, flameproof or intrinsic safety compliance
- Temperature indication and control switching
- Simple to adjust via external knob
- Explosion proof models are UL listed, cUL certified, and ATEX compliant
- Optional thermowells and union connectors available
- Single or dual SPDT output
- Stainless Steel Bulb and Capillary
- ±1% repeatability
- Enclosure Type 1, 4, and Explosion Proof Versions
Specifications
Accuracy
- Indication Accuracy: ± 1 % of Adjustable Range
Adjustment Type
- Factory Set (Pre-Set) One Switch
- Set Point Adjustment
Ambient Temperature Range
- -40° to 71° C (-40° to 160° F), Set Point Typically Shifts less than 1 % of Range for a 28° C (50° F) Ambient Temperature Change
Applications
- Food Service Appliances
- HVac Equipment
- Ovens
- Packaging Machines
- Process Plants
Approvals & Certifications
- ATEX Ex directive (94/9/EC) II 2 G Ex d IIC T6, II 2 D Ex TD A21 IP66 T 85° C (185° F), Tamb: -40° to 75° C (-40° to 167° F)
- CE 0539
- CQST Exd IIC T6 DIP A21 TA 85° C (185° F), Tamb: -40° to 75° C (-40° to 167° F)
- CSA C22.2 No. 24, File # LR7814
- GOST-R 51330.0, 51330.1, 51330.10 & 51330-14
- Low Voltage Directive (LVD) 73/23/EC & 93/68/EEC
- RTN
- UL (C,US) 50 & 698 Class I, Divisions 1 & 2, Groups B, C, D, Class II, Divisions 1 & 2, Groups E, F, G, Class III, Class I, Zone 1, Groups IIB + H₂ T6
Bulb Material
- 304 Stainless Steel
Capillary Length
- 6 feet (2 metres)
Capillary Material
- 304 Stainless Steel
Cover Material
- Lexan
Deadband
- Temperature Deadband: Typically 1 % of Range Under Laboratory Conditions (21.11° C (70° F) Circulating Bath at Rate of 0.5° F Per Minute Change)
Electrical - Free Leads
- 18 AWG, 1.19 mm² Color-Coded Leadwires, Approximately 9” (228.6 mm) Exposed with Strain Relief
Electrical Connectors
- 7/8” Diameter Knockout on Left Hand Side
- Plug Connection
- Two 3/4” NPT with Terminal Block
Electrical Contacts
- Normally Closed
- Normally Open
Electrical Rating
- 15 A at 125/250/480 Vac Resistive
- 20 A at 125/250 Vac Resistive
- Close Deadband, 5 A at 125/250 Vac Resistive
Enclosure Finish
- Epoxy Powder-Coated
Enclosure, Body Material
- Gasketed Die Cast Aluminum
Environmental Protection
- Flameproof
- IP66
- NEMA 4X
- NEMA 7
- NEMA 9
Materials of Construction
- Faceplate: Lexan
- Thermowell: 316 Stainless Steel
- Union Connector & Thermowell: Brass
- Union Connector: 304 Stainless Steel
Mounting
- Hole
- Panel
- Surface
Name Plate, Tag Material
- Stainless Steel, Paper ID Tag & Wire Attachment
NPT Connection
- 1/2” NPT
- 3/4” NPT
Process Connection Material
- 304 Stainless Steel
- Brass
Repeatability
- Set Point Repeatability: ± 1 % of Adjustable Range
Service
- Oxygen Service Cleaning, Alcohol Cleaning to Remove Residue from the Process Connection
Set Point - Decreasing
- -117.8° to 343.3° C (-180° to 650° F)
Set Point - Increasing
- -117.8° to 343.3° C (-180° to 650° F)
Shock
- Set Point Repeats after 15 G, 10 millisecond Duration
Storage Temperature
- -54° to 71° C (-65° to 160° F)
Switch Type
- SPDT
Temperature Range
- Maximum
Vibration
- Set Point Repeats after 2.5 G, 5 to 500 Hz