Dwyer SSR-324 - Manual

Typical Wiring Diagrams
SSR-3: Providing Pump-Up/Pump-Down Control
Refill: Low level permits S2 to close, starting refill pump. Rising level allows S2 to
open and eventually closes S1 to actuate the SSR-3 "OFF" circuit and stop the
pump motor. The SSR-3 "OFF" override assures pump shut-down even if S2
failed to open.
Pump-Down: with "ON" and OFF" connections of S1 and S2 transposed at the
SSR-3, the pump is started by S1 and stopped by S2 at low level. The same
"OFF" override prevails.
With two normally open momentary contact push buttons (S1 and S2), the SSR-3
provides solid-state control of the motor starter or the motor itself......if load
requirements are within SSR-3 ratings. S3 provides a safety shut-down. With
S3 closed, the "ON" push button (S1) is rendered ineffective by the "OFF"
override feature of the SSR-3
Wiring & Installation Diagram
for
SSR-3 Solid State Relay
S1
High Level
S2
Low Level
N.O. Dry
N.C. Dry
OFF
COM.
ON
LOAD
AC
Hot
Neutral
Pump Motor
OFF
COM.
ON
LOAD
AC
Hot
Neutral
"OFF"
S2
"ON"
S1
S3
Motor Starter
or Motor
VAC
VAC
SSR-3
SSR-3
Typical Wiring Diagrams
SSR-3: Providing Pump-Up/Pump-Down Control
Refill: Low level permits S2 to close, starting refill pump. Rising level allows S2 to
open and eventually closes S1 to actuate the SSR-3 "OFF" circuit and stop the
pump motor. The SSR-3 "OFF" override assures pump shut-down even if S2
failed to open.
Pump-Down: with "ON" and OFF" connections of S1 and S2 transposed at the
SSR-3, the pump is started by S1 and stopped by S2 at low level. The same
"OFF" override prevails.
With two normally open momentary contact push buttons (S1 and S2), the SSR-3
provides solid-state control of the motor starter or the motor itself......if load
requirements are within SSR-3 ratings. S3 provides a safety shut-down. With
S3 closed, the "ON" push button (S1) is rendered ineffective by the "OFF"
override feature of the SSR-3
Wiring & Installation Diagram
for
SSR-3 Solid State Relay
S1
High Level
S2
Low Level
N.O. Dry
N.C. Dry
OFF
COM.
ON
LOAD
AC
Hot
Neutral
Pump Motor
OFF
COM.
ON
LOAD
AC
Hot
Neutral
"OFF"
S2
"ON"
S1
S3
Motor Starter
or Motor
VAC
VAC
SSR-3
SSR-3