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UMX-4, UMX-8

Multi-Function Input / Output Expander

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The UMX-8 is a unique microcomputer-based multifunction interface that expands the input or output capability of building automation controllers. It has eight SPDT output relays that provide on/off control from a jumper-selectable PWM, current or voltage input signal. The sequence of operation can be easily selected by DIP switches. A dual mode allows two UMX-8s to be controlled in sequence from a single input signal. HOA switches allow for manual override of each relay output. Feedback and LED's provide status indication of the UMX-8.The UMX-4 provides four SPDT output relays. All jumper positions and DIP switch settings are identical to the UMX-8. The operation of the UMX-4 is identical to relays 1-4 on the UMX-8. Feedback and LED's provide status indication of the UMX-4.


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Features
  • Four or eight SPDT relay outputs
  • HOA switches
  • LED status indication
  • Field selectable functions
  • Output status feedback
  • Override indication
  • Field-selectable PWM, current, or voltage inputs
  • Pull-apart terminal blocks
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Specifications

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

Supply Current:

 :UMX-4 210 mA @ 24 VAC; 90 mA @ 24 VDC maximum

 :UMX-8 350 mA @ 24 VAC; 150 mA @ 24 VDC maximum

Input:PWM, 0-20 mA, 0-5V, 0-10V, 0-15V, jumper selectable

Input Impedance:250Ω (mA input) maximum; 46.4 kΩ minimum (VDC input)

Wiring Terminations:Screw terminals

Override:Transistor switch, 30 VDC @ 100 mA maximum

Output:

 :UMX-4 Four SPDT relays

 :UMX-8 Eight SPDT relays

Feedback:

 :UMX-4 One output, 1-5V (3 mA) for relays 1 thru 4

 :UMX-8 Two outputs, 1-5V (3 mA) for relays 1 thru 4 and for relays 5 thru 8

Relay Output Rating:5A @ 24 VAC/VDC

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

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

Dimensions:3.3"H x 7.0"W x 1.6"D (8.3 x 17.8 x 4.0 cm)

Weight:1.1 lb (0.5 kg)

RoHS Statement:Yes

Warranty:18 months

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Products

(Wholesale customers, log in for your special pricing.)

QtyModelDescriptionIn StockList PriceInternet Price
UMX-4 4 LOAD MULTIPLEXER In Stock263.28210.62
UMX-8 8 LOAD MULTIPLEXER In Stock331.96265.57
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MERITEK ELECTRONICS CORPORATIONUMX-4, UMX-8
Overall rating 
5 / 5
5 / 5
Open Ratings Snapshot
Rating breakdown 1 review
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
5 / 5
5 / 5
Quality / Performance 
5 / 5
5 / 5
Value 
4 / 5
4 / 5
1 out of 1(100%)customers recommend this product.
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1
1 The UMX-8 is a unique microcomputer-based multifunction interface that expands the input or output capability of building automation controllers. It has eight SPDT output relays that provide on/off control from a jumper-selectable PWM, current or voltage input signal. The sequence of operation can be easily selected by DIP switches. A dual mode allows two UMX-8s to be controlled in sequence from a single input signal. HOA switches allow for manual override of each relay output. Feedback and LED's provide status indication of the UMX-8.The UMX-4 provides four SPDT output relays. All jumper positions and DIP switch settings are identical to the UMX-8. The operation of the UMX-4 is identical to relays 1-4 on the UMX-8. Feedback and LED's provide status indication of the UMX-4.
Overall rating 
5 / 5
5 / 5
Open Ratings Snapshot
Rating breakdown 1 review
5 Stars
1
4 Stars
0
3 Stars
0
2 Stars
0
1 Star
0
Ease of Installation 
5 / 5
5 / 5
Quality / Performance 
5 / 5
5 / 5
Value 
4 / 5
4 / 5
1 out of 1(100%)customers recommend this product.
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Product ReviewsWrite a review
Overall rating 
5 / 5
5 / 5
Works great to expand your controller
PostedJune 20, 2011
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hvacddc
 
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from Primghar, IA
Years of Experience:11+
Job Function:Installation
Ease of Installation 
5 / 5
5 / 5
Quality / Performance 
5 / 5
5 / 5
Value 
4 / 5
4 / 5
These work great to add some binary outputs to a module if you have a spare analog output. Makes it easy to replace some of the OEM controllers in larger condensing units/chillers. They have override switches too so easy to troubleshoot or override in an emergency.
My Favorite Feature Analog to relay output.
Pros: Good value
Yes, I recommend this product.
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