FEATURES
• Regulated 24VDC, 150mA output current (120mA for OSP15)
• Mounts inside Fluorescent Ballast cavity
• Mounts inside or outside Junction Box
• Teflon coated Class II wires for plenum wiring
RATINGS
Part Number
HVAC Relay
Power Input
1
Power Output
2
OSP20-0D0
No
120-277VAC, 60Hz
24VDC, 150mA
3.6W
OSP20-RD0
Yes
120-277VAC, 60Hz
24VDC, 150mA
3.6W
OSP15-R30
Yes
347VAC, 60Hz
3
24VDC, 120mA
3.0W
OSA20-R00
Yes
24VDC, 50mA-1.2W
N/A
1
Input voltage tolerance 10% Frequency tolerance 5%.
2
Output voltage tolerance 15%, Output voltage listed at nominal.
3
Voltage range for the OSP15-R30 is 19-27VDC based on load and temperature conditions.
DESCRIPTION
The power pack contains a power supply, a load switching relay and on some models, a HVAC relay. The
power supply provides Class II low-voltage power for OSCxx, OSWxx, ODCxx, andODWxx Series
Occupancy Sensors. The OSP power packs can also supply power to the OSA20, Add-A-Relay. The relay in
the power pack is controlled by the occupancy sensors connected via the 22 Gauge Blue “occupancy” wire.
Multiple occupancy sensors can be connected to a single power pack in order to fully cover an area.
The power packs include zero cross switching circuitry to minimize inrush current associated with
incandescent and electronic ballasts. This reduces wear and tear on the relay contacts making the power
pack last longer.
Application Notes:
Loads that exceed the ratings of a single power pack can be connected to an Add-A-Relay, which is powered
from the low-voltage output of the power pack (OSPxx). The Add-A-Relay contains the load switching and
HVAC relays and is powered by an OSPxx Power Pack.
1. When a lighting load exceeds a single power pack’s rating, the load can be split between multiple power packs.
The low voltage occupancy input (Blue wire) and DC return (Black wires) of the power packs must be
connected together for all power packs to operate together as one. Connect the Blue (occupancy) wires of all
power packs and sensors together. Connect the Black (return) wires of all power packs and sensors together.
Connect the Red (+24VDC) wires of the sensors to the Red wires of only one power pack. Never connect the
Red (+24VDC) wires of two different power packs together.
2. When more sensors are required than one power pack can supply, multiple power packs can be used to supply
power to the occupancy sensor, but not switch any load. The primary power pack is the power pack switching
the load. The secondary power packs only provide low voltage power to the occupancy sensor(s). Connect as
many sensors to the primary power pack as possible (see current capacity section below), by connecting the
Red wires of the sensors to the Red wire (+24VDC) of the primary power pack. Connect the Red wires
(+24VDC) of the remaining sensors to the Red wires of the secondary power pack. Connect the Black (return)
wires of all power packs and all sensors together. Connect the Blue (occupancy) wire of all sensors together to
the Blue wire (occupancy) of the primary power pack. Never connect the Red (+24VDC) wires of two different
power packs together.
FCC COMPLIANCE STATEMENT (OSP20 Only)
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses,
and can radiate radio frequency energy and, if not installed and used in accordance with the instruction
manual, may cause harmful interference to radio communications. Operation of this equipment in a
residential area is likely to cause harmful interference in which case the user will be required to correct the
interference at his own expense.
LOW-VOLTAGE CURRENT CAPACITY
Occupancy Sensor
Power Pack
Cat. Nos.
OSP20-0D0
OSP20-RD0 (with HVAC relay)
Load Ratings:
20A, 2400W @ 120V, 60Hz – Incandescent
20A, 2400VA @ 120V, 60Hz – Fluorescent
20A, 5540VA @ 277V, 60Hz – Fluorescent
1 HP @ 120VAC – Motor Load
2 HP @ 240V, 60Hz – Motor Load
0.5A 125V, 1A 30VDC – HVAC Relay
Cat. No.
OSP15-R30 (with HVAC relay)
Load Ratings:
15A, 5200VA @ 347V, 60Hz – Fluorescent
0.5A 125V, 1A 30VDC – HVAC Relay
Occupancy Sensor Add-A-Relay
Cat. No.
OSA20-R00 (with HVAC relay)
Load Ratings:
15A, 1800W @ 120V, 60Hz – Incandescent
20A, 2400VA @ 120V, 60Hz – Fluorescent
20A, 5540VA @ 277V, 60Hz – Fluorescent
15A, 5200VA @ 347V, 60Hz – Fluorescent
1 HP @ 120VAC – Motor Load
2 HP @ 240V, 60Hz – Motor Load
0.5A 125V, 1A 30VDC – HVAC Relay
For use with OSCxx, OSWxx, ODCxx,
and ODWxx Occupancy Sensors
INSTALLATION INSTRUCTIONS
LIMITED 5 YEAR WARRANTY AND EXCLUSIONS
Leviton warrants to the original consumer purchaser and not
for the benefit of anyone else that this product at the time of
its sale by Leviton is free of defects in materials and
workmanship under normal and proper use for five years from
the purchase date. Leviton’s only obligation is to correct such
defects by repair or replacement, at its option, if within such
five year period the product is returned prepaid, with proof of
purchase date, and a description of the problem to Leviton
Manufacturing Co., Inc., Att: Quality Assurance
Department, 59-25 Little Neck Parkway, Little Neck, New
York 11362-2591. This warranty excludes and there is
disclaimed liability for labor for removal of this product or
reinstallation. This warranty is void if this product is installed
improperly or in an improper environment, overloaded,
misused, opened, abused, or altered in any manner, or is not
used under normal operating conditions or not in accordance
with any labels or instructions. There are no other or implied
warranties of any kind, including merchantability and fitness
for a particular purpose, but if any implied warranty is required
by the applicable jurisdiction, the duration of any such implied
warranty, including merchantability and fitness for a particular
purpose, is limited to five years. Leviton is not liable for
incidental, indirect, special, or consequential damages,
including without limitation, damage to, or loss of use of, any
equipment, lost sales or profits or delay or failure to perform
this warranty obligation. The remedies provided herein are the
exclusive remedies under this warranty, whether based on
contract, tort or otherwise.
For Technical Assistance Call:
1-800-824-3005 (U.S.A. Only)
www.leviton.com
PK-93960-10-00-2C
INSTALLATION INSTRUCTIONS
WARNING:
TO BE INSTALLED AND/OR USED IN ACCORDANCE WITH APPROPRIATE ELECTRICAL
CODES AND REGULATIONS.
WARNING:
IF YOU ARE NOT SURE ABOUT ANY PART OF THESE INSTRUCTIONS, CONSULT A
QUALIFIED ELECTRICIAN.
OTHER CAUTIONS:
1. DISCONNECT POWER WHEN SERVICING FIXTURE OR CHANGING LAMPS.
2. USE THIS DEVICE ONLY WITH COPPER OR COPPER CLAD WIRE. WITH ALUMINUM WIRE USE
ONLY DEVICES MARKED CO/ALR OR CU/AL.
TO INSTALL:
1.
WARNING:
TO AVOID FIRE, SHOCK, OR DEATH; TURN OFF POWER AT CIRCUIT BREAKER OR
FUSE AND TEST THAT POWER IS OFF BEFORE WIRING!
2. Mount power pack per desired application:
A. To mount outside 4"x4" junction box using 2" EMT nipple, refer to Figure 1. Wire per Step 3A and 3B.
B. To mount inside 4"x4" junction box, refer Figure 2. Wire per Step 3A and 3B.
• Ensure that conduit/cable entry clamp is located in corner of junction box.
• Dress wires to provide enough clearance when device is installed.
CAUTION: Low-voltage wires must also be dressed so they are separate from the high voltage (Class I)
conductors. Refer to local building codes for the appropriate installation requirements for the low-
voltage wiring. Jacketing over the low-voltage wires may be required to provide appropriate insulation
from the high-voltage wiring.
C. To mount inside ballast cavity of light fixture, refer Figure 3A. Wire per Step 3A and 3B.
CAUTION: Low-voltage wires must also be dressed so they are separate from the high voltage (Class I)
conductors. Refer to local building codes for the appropriate installation requirements for the low-
voltage wiring. Jacketing over the low-voltage wires may be required to provide appropriate insulation
from the high-voltage wiring.
D. To mount outside ballast cavity of light fixture, refer Figure 3. Wire per Step 3A and 3B.
3A. Line Voltage Wiring: Remove 5/8" (1.6 cm) of insulation from each circuit conductor. Make sure that
ends of conductors are straight. Connect lead wires from Power Pack to LINE circuit per appropriate
WIRING DIAGRAM as follows: Twist strands of each lead tightly and, with circuit conductors push firmly
into appropriate wire connector. Screw connectors on clockwise making sure that no bare conductor
shows below the wire connectors. Secure each connector with electrical tape.
3B. Class II and HVAC Wiring: Connect Low-Voltage wires from Power Pack to Sensor per appropriate
WIRING DIAGRAM as follows: Twist strands of each lead tightly and, with circuit conductors, push firmly
into appropriate wire connector. Screw connectors on clockwise making sure that no bare conductor
shows below the wire connectors. Secure each connector with electrical tape.
4. Refer to sensor Installation Instructions for further details.
5. Restore power at circuit breaker or fuse. INSTALLATION IS COMPLETE.
WIRE DESIGNATIONS
PK-93960-10-00-2C
Signal Name
Color
Gauge
Line Voltage Wires
Line 120/277V (OSP20-xx0)
Black
18AWG
Line 347V (OSP15)
Neutral
White
18AWG
Load
Blue
14AWG
Load
Blue
14AWG
Class II Wires
Power (24VDC)
Red
22AWG
Return
Black
22AWG
Occupancy
Blue
22AWG
HVAC Wires
HVAC Common
Green
22AWG
HVAC NO (Normally Open)
Brown/White
22AWG
HVAC NC (Normally Closed)
Brown
22AWG
All wires rated at 105
°
C, 600V insulation.
Class II wires are Teflon coated, for plenum applications.
HVAC wiring is Class I and Class II rated.
NOTE: Add-a-Relay current consumption = 50mA per unit.
Total Number of
Sensor
+
Total Number of
Add-a-Relays
≤
150mA
Total Number of
Sensor
+
Total Number of
Add-a-Relays
≤
120mA
For OSP20
For OSP15
