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UCS-821E

Sequencer Control Module - Eight Stage

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The UCS-821E is a solid-state device used for multistage control in HVAC systems, sequencing boilers or chillers, or floating/tri-state control of VAV boxes from a single analog signal. The UCS-821E can be used to obtain a digital output from a voltage or current producing sensor. Units may be daisy chained to provide additional stages of control, and a mounting track is supplied for easy installation.


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Features
  • Eight stages of relay control
  • Voltage or current input
  • 24 VAC/VDC power
  • LED indication of relay status
  • Adjustable relay setpoints
  • Adjustable relay differentials
  • Snap-track mounted
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Specifications

Supply Voltage:24 VAC ±10%, half-wave; or 24 VDC ±10%

Supply Current:280 mA @ 24 VAC; 140 mA @ 24 VDC maximum

Input:0-20 mA or 0-15 VDC, jumper selectable

Input Impedance:250Ω (mA input); 49.7 kΩ (VDC input)

Wiring Terminations:Screw terminals

Accuracy:±1%

Output:Eight SPDT relays, adjustable via setpoint potentiometers

Relay Differential:Factory set at 0.5 mA or 0.375V, adjustable using plug-in resistors

Relay Output Rating:10A @ 120 VAC

Operating Temperature:32° to 158℉ (0° to 70℃)

Operating Humidity:5% to 95% RH (non-condensing)

Weight:0.8 lb (.36 kg)

RoHS Statement:Yes

Warranty:1 year

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Products

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QtyModelDescriptionIn StockList PriceInternet Price
UCS-821E 8-STAGE SEQUENCER In Stock347.98278.38
UCS-821E-C 8-STAGE SEQUENCER CALIBRATED INFO370.20296.16
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Catalog Page
ILAMPS INTL TRADE (BEIJING) CO LTDUCS-821E
Overall rating 
4 / 5
4 / 5
Open Ratings Snapshot
Rating breakdown 1 review
5 Stars
0
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4 / 5
4 / 5
1 out of 1(100%)customers recommend this product.
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1
1 The UCS-821E is a solid-state device used for multistage control in HVAC systems, sequencing boilers or chillers, or floating/tri-state control of VAV boxes from a single analog signal. The UCS-821E can be used to obtain a digital output from a voltage or current producing sensor. Units may be daisy chained to provide additional stages of control, and a mounting track is supplied for easy installation.
Overall rating 
4 / 5
4 / 5
Open Ratings Snapshot
Rating breakdown 1 review
5 Stars
0
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4 / 5
4 / 5
1 out of 1(100%)customers recommend this product.
Share this product
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Product ReviewsWrite a review
Overall rating 
4 / 5
4 / 5
John Cassidy
PostedSeptember 23, 2011
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JFC3
 
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from Hickory, NC
Years of Experience:5-10
Job Function:Purchasing
Ease of Installation 
4 / 5
4 / 5
Quality / Performance 
4 / 5
4 / 5
Value 
4 / 5
4 / 5
The contractor was thoughly pleased with product and the service.
Pros: Good value
Yes, I recommend this product.
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