Wiring & Installation Diagram
for
SSR-3 Solid State Relay
Wiring & Installation Diagram
for
SSR-3 Solid State Relay
Typical Wiring Diagrams
SSR-3: Providing Pump-Up/Pump-Down Control
Typical Wiring Diagrams
SSR-3: Providing Pump-Up/Pump-Down Control
SSR-3
SSR-3
S1
High Level
OFF
AC
Neutral
COM.
S2
Low Level
S1
High Level
Hot
N.O. Dry
Hot
N.O. Dry
OFF
VAC
AC
Neutral
COM.
LOAD
S2
Low Level
ON
N.C. Dry
VAC
LOAD
ON
N.C. Dry
Pump Motor
Pump Motor
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.
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.
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.
SSR-3
SSR-3
"OFF"
S2
"OFF"
S2
Hot
S3
OFF
AC
COM.
Neutral
Hot
S3
VAC
OFF
Neutral
VAC
LOAD
LOAD
"ON"
S1
AC
COM.
ON
Motor Starter
or Motor
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
"ON"
S1
ON
Motor Starter
or Motor
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
MAINTENANCE/REPAIR
MAINTENANCE/REPAIR
Regular maintenance of the total system is recommended to assure sustained optimum
performance. These devices are not field repairable and should be returned to the
factory if recalibration or other service is required. After first obtaining a Returned Goods
Authorization (RGA) number, send the unit freight prepaid to the following. Please include
a clear description of the problem plus any application information available.
Dwyer Instruments, Inc.
Attn: Repair Department
102 Highway 212
Michigan City, IN 46360
Regular maintenance of the total system is recommended to assure sustained optimum
performance. These devices are not field repairable and should be returned to the
factory if recalibration or other service is required. After first obtaining a Returned Goods
Authorization (RGA) number, send the unit freight prepaid to the following. Please include
a clear description of the problem plus any application information available.
Dwyer Instruments, Inc.
Attn: Repair Department
102 Highway 212
Michigan City, IN 46360
Important Points!
Important Points!
Product must be maintained and installed in strict accordance with the National Electrical
Code and Dwyer product catalog and instruction bulletin. Failure to observe this warning could result in serious injuries or damages.
Product must be maintained and installed in strict accordance with the National Electrical
Code and Dwyer product catalog and instruction bulletin. Failure to observe this warning could result in serious injuries or damages.
An appropriate explosion-proof enclosure or intrinsically safe interface device must be
used for hazardous area applications involving such things as (but not limited to)
ignitable mixtures, combustible dust and flammable materials.
An appropriate explosion-proof enclosure or intrinsically safe interface device must be
used for hazardous area applications involving such things as (but not limited to)
ignitable mixtures, combustible dust and flammable materials.
Pressure and temperature limitations shown on individual catalog pages and drawings
for the specified products must not be exceeded. These pressures and temperatures
take into consideration possible system surge pressures/temperatures and their frequencies.
Pressure and temperature limitations shown on individual catalog pages and drawings
for the specified products must not be exceeded. These pressures and temperatures
take into consideration possible system surge pressures/temperatures and their frequencies.
Selection of materials for compatibility with the media is critical to the life and operation
of Dwyer products. Take care in the proper selection of materials of construction;
particularly wetted materials.
Selection of materials for compatibility with the media is critical to the life and operation
of Dwyer products. Take care in the proper selection of materials of construction;
particularly wetted materials.
Life expectancy of switch contacts varies with applications. Contact Dwyer if life
cycle testing is required.
Life expectancy of switch contacts varies with applications. Contact Dwyer if life
cycle testing is required.
Ambient temperature changes do affect switch set points, since the specific gravity of
a liquid can vary with temperature.
Ambient temperature changes do affect switch set points, since the specific gravity of
a liquid can vary with temperature.
Dwyer products have been designed to resist shock and vibration; however, shock and
vibration should be minimized.
Dwyer products have been designed to resist shock and vibration; however, shock and
vibration should be minimized.
Liquid media containing particulate and/or debris should be filtered to ensure proper
operation of Dwyer products.
Liquid media containing particulate and/or debris should be filtered to ensure proper
operation of Dwyer products.
Electrical entries and mounting points may require liquid/vapor sealing if
located in an enclosed tank.
Electrical entries and mounting points may require liquid/vapor sealing if
located in an enclosed tank.
Dwyer products must not be field repaired.
Dwyer products must not be field repaired.
Physical damage sustained by the product may render it unserviceable.
Physical damage sustained by the product may render it unserviceable.
DWYER INSTRUMENTS,INC.
DWYER INSTRUMENTS,INC.
P.O.BOX 373 MICHIGAN CITY, INDIANA 46361, U.S.A.
P.O.BOX 373 MICHIGAN CITY, INDIANA 46361, U.S.A.
Phone: 219/879-8000
Fax: 219/872-9057
Lit-By Fax: 888/891-4963
Phone: 219/879-8000
Fax: 219/872-9057
Lit-By Fax: 888/891-4963
www.dwyer-inst.com
e-mail: info@dwyer-inst.com
www.dwyer-inst.com
e-mail: info@dwyer-inst.com