Watlow VPAC Solid State Relay Power Control - Manual (Page 5)

Starting Out
Watlow VPAC User's Manual
5
Single Phase Wiring
1Ø Wiring for AC & DC Input Contactor
10-40A, Models (CA or CD)
Limit Contactor
Contacts
(if required)
V~(ac) or VDC Input
Command Signal
Depending on Model Ordered
T1 L1
V~(ac)
1Ø Wiring, 4-20mA Burst, 50 & 75A (BL)
L1 L2 T1 T2
Limit Contactor
(if required)
L2
L1
4-20mA
120V~(ac) Fan Power
20 Watts Max. - 75A Only
(Customer Supplied)
Separate Disconnect Required
L2
L1
L1
1Ø Wiring, 4-20mA Burst, 10-40A (BL)
T1
VDC
CD
L2
L1
з з з з з
WARNING:
∫ ∫ ∫ ∫ ∫
1
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.
Limit Contactor
Contacts
(if required)
4-20mA
Input
SBL
з з з з з
WARNING
∫ ∫ ∫ ∫ ∫
2
Wiring examples show L2 in 240V~(ac)
or 480 V~(ac) configuration. In
120V~(ac) applications, L2 is neutral and
must not be fused or switched. Failure
to follow this guideline could result in
death or personal injury.
Semiconductor
Fuse
Semiconductor
Fuse
Semi-
conductor
Fuse
∫ ∫ ∫ ∫ ∫
1
∫ ∫ ∫ ∫ ∫
2
∫ ∫ ∫ ∫ ∫
1
∫ ∫ ∫ ∫ ∫
2
∫ ∫ ∫ ∫ ∫
1
∫ ∫ ∫ ∫ ∫
2