Performance Specification
& Installation Guide
120/277Vac Single-Pole Power Pack
Part No.
Features
Specification
PPK1-PLS
1-Pole
120-277Vac
• Works with CENTO 24Vac
(low voltage) Occupancy and
Vacancy Sensors
Load Voltage
• 120/277Vac
• 60Hz
• Converts line voltage to low
voltage and switches the load
Switching Load Connections
• 120/277Vac
• See Table for contact rating
• #14AWG Wire
• Mounts to a standard ½”
knockout
• Fits into a standard 4” octagon
box if required to meet local
electrical codes
Operation
The PPK1-PLS power pack is intended for use with CENTO 24Vac, low-voltage occupancy
sensors. The power pack provides 24Vac control power to one or more sensors, and the
sensor (or gang of sensors) provides a diode-pulse control signal for use by the power
pack’s internal relay.
Contact Rating
Voltage
General
Tungsten
Standard Ballast
Electronic Ballast
120V
20A
20A
20A
16A
277V
20A
20A
20A
16A
Secondary Power Source Loading
Voltage
Max # of Linked Sensors
24Vac
10
Power pack is designed for use only with CENTO 24Vac, low-voltage occupancy sensors.
Control Inputs
• Diode Pulse : For use with CENTO
24Vac occupancy sensors
• #22AWG Wires
Use #18AWG for connections
Secondary Power Source
• 24Vac, 150mA
• #22AWG Wires
Use #18AWG for connections
Approvals
• Certified to CAN/CSA Std.
C22.2 No. 14
• Conforms to UL 508 Standard
• Title 24
• FCC
• Class 2 Power Supply
• Plenum Rated UL2043
Environment
• Indoors, stationary, non-vibrating,
non-corrosive atmosphere and
non-condensing humidity
• Ambient Operating Temperature:
14°F to 140°F (-10°C to 60°C)
• Storage Temperature:
-14°F to 140°F (-25°C to 60°C)
* Application and Performance Specification Information Subject to Change without Notification
51 Century Blvd., Suite 230 • Nashville, TN 37214 • 615-316-5100 • (TES) 1-800-BALLAST • www.unvlt.com
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Performance Specification
& Installation Guide
120/277Vac Single-Pole Power Pack
Installation
Use the 1/2in electrical hub and a listed junction box to provide a suitable enclosure for the line-side electrical connections.
Wiring Instructions
Complete the line-side electrical connections as shown in the diagram below. Separately cap and insulate any unused connections.
Provide insulation for at least 600Vac.
Electrical Connections
24Vac Supply
24Vac Return
Diode Pulse Input
PPK1-PLS
Black
LINE
White
White
Blue
NEUTRAL
Blue
Blue
Red
Class 2
LOAD
Class 1
Refer to sensor cut sheets for
low voltage wiring diagrams.
All line and neutral connections must
be derived from the same circuit.
Dimensions & Mounting – inches (mm)
1/2” KO
1.93 (49)
0.59 (15)
3.50 (89)
1.85 (47)
* Application and Performance Specification Information Subject to Change without Notification
51 Century Blvd., Suite 230 • Nashville, TN 37214 • 615-316-5100 • (TES) 1-800-BALLAST • www.unvlt.com
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