Watlow VPAC Solid State Relay Power Control User Manual Page 7

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Starting Out
Watlow VPAC User's Manual 7
VDC
3-Phase, 2-Leg Wiring
Fan
3Ø Wiring, DC Contactor, 50 & 75 A (BL) (CD)
3Ø Wiring for AC & DC Input Contactor
10-40A, Models (CA or CD)
T2
Limit Contactor
(if required)
90-240V~(ac) -
AC Input +
L1
L2
L3
T3
T1
T3
T1
T2
Limit Contactor
(if required)
L1
L2
L3
- +
+ -
3Ø Wiring, Burst Fired, 4-20mA, 10-40 A (BL)
4-20mA +
Input -
+
-
çç
çç
çWARNING:
Wiring must conform to National Electric
Code (NEC) safety standards, as well as
locally applicable codes. Failure to do so
could result in death or personal injury,
or damage to equipment.
Semiconductor
Fuses
Semiconductor
Fuses
T2 T1
Semiconductor
Fuses
Limit Contactor
(if required)
SBL
+
-
T3
L1 T1 L3 T3
4-20mA
120/240V~(ac) Fan Power
(model # dependent)
20 Watts Max.
(Customer Supplied)
Separate Disconnect Required
Fan
L1
L2
L3
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