Watlow VPAC Solid State Relay Power Control User Manual download pdf (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

T1L1

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

çç

çç

ç

WARNING:

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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

çç

çç

çWARNING

∫∫

∫∫

∫

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

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∫

1

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∫

2

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∫

1

∫∫

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∫

2

∫∫

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1

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2

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