Dwyer Series SSCS User manual

Brand: Dwyer

Model: Series SSCS

Type: User manual

Dwyer Series SSCS is a self-powered current switch designed to monitor motor operation and provide protection against electrical shock or arc flash. It features 9 pre-configured adjustable HP set points, eliminating the need for live enclosure work and reducing the risk of accidents. With a wide range of motor HP and voltage options, the SSCS is compatible with both 230 VAC and 480 VAC motors. Its isolated NO output and easy installation make it ideal for various applications, including motor overload protection, pump control, and fan monitoring.

Series SSCS Sure-Set Current Switches

Specications - Installation and Operating Instructions

Bulletin PC-SSCS

The SERIES SSCS Sure-Set Current Switch provides a unique approach to calibration

and installing current sensors in a low cost, fast, and accurate design. Selecting the set

point has never been easier, with each model having 9 pre-congured adjustable HP

set points. This feature eliminates the need to work within a live enclosure, reducing

the risk of arc ash on installation.

SELECTING OPERATING RANGE

1. Verify the motor Full Load HP for the system being monitored.

2. Verify the motor operating voltage.

3. Verify that the proper SSCS model was selected to monitor the motor used in the

system. (SSCS Current Switches are available for 230 VAC and 480 VAC motors,

both in low and high HP ranges.)

4. Set the SSCS operating set point to the motor Full Load HP by rotating the range

selector switch on top of the switch to the proper motor HP. The SSCS operating set

point is now set to properly monitor the motor operation. No calibration on a live load

is necessary.

SPECIFICATIONS

Output: Isolated, NO.

Power Requirements: None, self-powered.

Temperature Limits: 5 to 140°F (-15 to 60°C).

Humidity Limits: 0 to 95%, non-condensing.

Isolation Voltage: 600 VAC RMS.

Frequency: 50/60 Hz.

Enclosure Rating: UL 94 V-0 ammability rated, ABS plastic housing.

Agency Approvals: CE, cULus.

HP @ XXX VAC

N.O. STAT US

1.0A@30V AC/DC

Isolation 600V AC

Patent Pending

E223444

IND. CONT EQ

38YE

Isolation 600V AC

Patent Pending

E223444

IND. CONT EQ

38YE

2-9/16

[65.02]

11/64

[4.56]

1-5/64

[27.43]

4X 7/64

[R2.69]

3-21/64

[84.66]

2-45/64

[68.58]

Risk of Electrical Shock or Arc Flash

Disconnect power supply before making electrical connections.

Contact with components carrying hazardous voltage can cause electrical shock

and may result in severe personal injury or death.

WARNING

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: [email protected]

INSTALLATION

Mounting

1. Shut off all power to the enclosure prior to installing.

2. Remove the mounting bracket from the main housing.

3. Using the two included screws, attach the mounting bracket to the rear of the

electrical panel or enclosure.

4. Re-attach the current switch housing to the plastic mounting bracket.

Wiring

1. Disconnect power to the conductor cable from the power source prior to proceeding.

2. Open the core using the release tab. Snap the core closed around the power

conductor cable. Make sure that the core release tab is locked in its original position.

3. Wire the Series SSCS output terminals to the control box Digital Input (DI) terminal

(30 V maximum terminal voltage).

4. Close the enclosure and reconnect power to the power conductor cable. (For wiring

example, see Figure 1)

CONTACTOR

MOTOR

FAN OR PUMP

Figure 1

TROUBLESHOOTING

MAINTENANCE/REPAIR

Upon nal installation of the Series SSCS Sure-Set Current Switches, no routine

maintenance is required. The Series SSCS is not eld serviceable and should

be returned if repair is needed. Field repair should not be attempted and may void

warranty.

WARRANTY/RETURN

Refer to “Terms and Conditions of Sale” in our catalog and on our website. Contact

customer service to receive a Return Goods Authorization number before shipping the

product back for repair. Be sure to include a brief description of the problem plus any

additional application notes.

Symptom Action

SSCS solid state output does

not change state when motor

current is changed.

Insufcient current to the load to reach the selected

set point threshold.

Incorrect motor HP range selected. Verify that the

SSCS range selector switch is set to the proper

motor FLA.

Incorrect SSCS model chosen. Check the motor Full

Load HP against the SSCS HP ranges.

Check that the proper SSCS model was chosen for

the motor operating voltage.

The clamp is not fully closed. Press the SSCS hous-

ing to ensure the clamp latch is fully closed. Verify

that the conductor is within range of the conductor

sizes that can be accommodated by the SSCS.

Motor is turned on and

switch does not close.

Verify that the range selector switch is set to the

proper motor FLA.

DWYER INSTRUMENTS, INC.

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.

Phone: 219/879-8000

Fax: 219/872-9057

www.dwyer-inst.com

e-mail: [email protected]

Dwyer Series SSCS User manual

Dwyer Series SSCS User manual

Dwyer Series SSCS User manual

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