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EZ-Zone ST Integrated Control Loop
Total System Performance in One Compact Package
Watlow EZ-Zone ST -
Combines Multiple Thermal Control Functions in One Integrated Package

The revolutionary new Watlow EZ-Zone ST integrated control loop combines multiple thermal control functions into one single package, giving design engineers the ability to utilize just one component instead of up to six. This results in improved reliability, smaller footprint, easier installation, reduced terminations and wiring, easier troubleshooting and simplified initial specification.

With the EZ-Zone ST Integrated Control Loop you get a PID temperature controlled already connected to a high amperage solid state relay with the option of adding a properly sized heat sink, an over/under temperature limit control, a shut-down power contactor, digital communications and a remote user interface in one complete and professionally engineered product.

Because the system is modular and scalable, you only for what you need. You can stack the EZ-Zone ST Integrated Control Loop into multiple configurations giving you the flexibility to standardize on the product's platform to solve a wide range of applications needs.

Download the Watlow EZ-Zone ST Spec Sheet (pdf 2.3MB)

Download the Watlow EZ-Zone ST Manual (pdf 7.7MB)

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To order, make a selection in each category below, then click the "submit" button at the bottom of the page.
The part number and price will be displayed on the next page.
1-2. Control Model
Price
ST = EZ-Zone ST - Integrated Control Loop
NC

3. Integrated PID Controller (choose K, B, P, E, H, D, J or C)
Output 1* Output 2 Total of 2 Digital
I/O Points
Current
Measurement
Price
K = SSR Drive 0.5A SSR No No $195.00
B = SSR Drive 0.5A SSR Yes No $220.00
P = SSR Drive 0.5A SSR No Yes $246.00
E = SSR Drive 0.5A SSR Yes Yes $277.00
H = SSR Drive 5A mech. relay No No $200.00
D = SSR Drive 5A mech. relay Yes No $226.00
J = SSR Drive 5A mech. relay No Yes $256.00
C = SSR Drive 5A mech. relay Yes Yes $282.00
* Output 1 is dedicated to providing the command signal to the internal SSR.

4. Integrated Limit Controller (choose A, L or B)
A = None
NC
L = Limit control module with output 3, 5A Form C mechanical relay; with output 4, 2A Form A mechanical relay.
$120.00
B = No limit control module but access to coil conection on mechanical contactor
$35.00

5-6. Mechanical Contactor and Power Supply Options (choose AH, AL, B1, B2, B3, F1, F2 or F3)
AH = No contactor and universal high voltage power supply 100 to 240V~ (ac/dc)
NC
AL = No contactor and universal low voltage power supply 24 to 28V~ (ac/dc)
$35.00
B1 = Single pole, 40A Watlow contactor, 24V~(ac) power supply
$95.00
B2 = Single pole, 40A Watlow contactor, 110/120V~(ac) power supply
$60.00
B3 = Single pole, 40A Watlow contactor, 208/240V~(ac) power supply
$60.00
F1 = Dual pole, 40A Watlow contactor, 24V~(ac) power supply
$95.00
F2 = Dual pole, 40A Watlow contactor, 110/120V~(ac) power supply
$60.00
F3 = Dual pole, 40A Watlow contactor, 208/240V~(ac) power supply
$60.00

7. Communications (choose A or M)
A = Standard bus used to connect to Watlow PC software, Remote User Interface, other EZ-Zone unit.
NC
M = Modbus RTU (needed to communicate to third party devices) and Standard Bus. User selectable.
$75.00

8. SSR (choose B, C, D, E, F, G, H or J)
B = Zero Cross 10A (24 to 240VAC output)
$40.00
C = Zero Cross 25A (24 to 240VAC output)
$45.00
D = Zero Cross 40A (24 to 240VAC output)
$62.00
E = Zero Cross 50A (24 to 240VAC output)
$65.00
K = Zero Cross 75A (24 to 240VAC output)
$88.00
F = Zero Cross 90A (24 to 240VAC output)
$110.00
G = Zero Cross 25A (48 to 600VAC output)
$75.00
H = Zero Cross 40A (48 to 600VAC output)
$95.00
L = Zero Cross 75A (48 to 600VAC output)
$110.00
J = Zero Cross 90A (48 to 600VAC output)
$120.00
M = Phase Angle 25A (100 to 240VAC output)
$190.00
N = Phase Angle 40A (100 to 240VAC output)
$207.00
P = Phase Angle 75A (100 to 240VAC output)
$230.00
R = Phase Angle 25A (260 to 600VAC output)
$220.00
S = Phase Angle 40A (260 to 600VAC output)
$240.00
T = Phase Angle 75A (260 to 600VAC output)
$255.00

9. Heat Sinks (choose A, B or C)
A = None
NC
B = 25A
$25.00
C = 40A
$35.00
D = 75A, 24VDC fan cooled
$55.00
E = 75A, 115VAC fan cooled
$55.00
F = 75A, 240VAC fan cooled
$55.00

10. Firmware (choose A or P)
A = Standard Watlow
NC
P = Profile ramp and soak (40 total steps, 1 to 4 profiles total)
$90.00

11-12. Additional Options
AA = Standard
NC

Click here to order EZ-Zone Accessories including the Power Supply & Comm. Adapters

This page last modified on 7/1/2016

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