
078477144305 Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $24.50 | Condition is New – Open box, Leviton Occupancy Sensor Power Pack OSP20-RD0, FREE SHIPPING | 100.0% |
![]() | $20.00 | Condition is New – Open box, Leviton Occupancy Sensor Power Pack OSP20-RD0 HVAC Relay *141, shipping cost = $6.07 | 100.0% |
![]() | $25.00 | Condition is New – Open box, LEVITON OCCUPANCY SENSOR POWER PACK W/HVAC RELAY OSP20-RD0 SD, shipping cost = $8.13 | 100.0% |
![]() | $39.97 | Top Pick! Condition is New – Open box, New Leviton OSP20-RD0 Black Occupancy Sensor Power Pack 120-277V, FREE SHIPPING | 100.0% |
![]() | $25.00 | Condition is New – Open box, New Leviton OSP20-RD0 Black Occupancy Sensor Power Pack 120-277V, shipping cost = $15.79 | 100.0% |
![]() | $59.99 | Condition is New – Open box, (Set of 2) LEVITON OSP20-RD0 OCCUPANCY SENSOR POWER PACK w/ HVAC relay 120-277V , FREE SHIPPING | 100.0% |
![]() | $160.00 | Top Pick! Condition is New – Open box, LEVITON OSP20-RD0 OCCUPANCY POWER PACK /W/HVAC RELAY, FREE SHIPPING | ![]() |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $24.99 | Top Pick! Condition is New, Leviton OSP20-RD0 Occupancy Sensor Power Pack W/ HVAC Relay 120-277V Input, shipping cost = $10.15 | ![]() |
![]() | $34.99 | Condition is New, New Leviton OSP20-RD0 Black Occupancy Sensor Power Pack 120-277V Z2, FREE SHIPPING | ![]() |
![]() | $25.00 | Condition is New, New Leviton OSP20-RD0 Occupancy Sensor Power Pack, 120-277v, Black, shipping cost = $14.35 | 100.0% |
![]() | $20.00 | Condition is New, Leviton OSP20-RD0 Black Occupancy Sensor Power Pack 120-277V, shipping cost = $20.42 | 100.0% |
![]() | $35.00 | Condition is New, LEVITON OSP20-RD0 Occupancy Sensor Power Pack W/HVAC RELAY, shipping cost = $7.00 | 100.0% |
![]() | $24.01 | Condition is New, Leviton Occupancy Sensor Power Pack OSP20-RD0, shipping cost = $19.95 | 100.0% |
![]() | $39.99 | Condition is New, Leviton Occupancy Sensor Power Pack OSP20-RD0, shipping cost = $4.00 | ![]() |
![]() | $45.00 | Condition is New, Leviton OSP20-RDO Power Pack 120/277V, shipping cost = $11.95 | 100.0% |
![]() | $59.64 | Condition is New, Leviton Fluorescent/Incandescent Power Pack for Occupancy (Pack of 1), Black , FREE SHIPPING | 99.6% |
![]() | $85.00 | Condition is New, LEVITON OSP20-RD0 / OSP20RD0 (BRAND NEW), shipping cost = $12.90 | 99.7% |
| photo | price | summary | rating |
|---|---|---|---|
![]() | $24.99 | Condition is Used, Leviton OSP20-RD0 Black Occupancy Sensor Power Pack 120-277V, NOM 057(FG1, shipping cost = $16.85 | 99.4% |
![]() | $39.99 | Condition is Used, LEVITON OSP20-RD0 OCCUPANCY SENSOR POWER PACK with HVAC Relay 120-277VA (41DB2UP, shipping cost = $16.85 | 99.4% |

The Leviton 078477144305 OSP20-RD0 Fluorescent/Incandescent Power Pack for Occupancy Sensor HVAC is a versatile and energy-efficient solution for powering lighting and small appliances in commercial and residential HVAC systems. This power pack is designed to work seamlessly with occupancy sensors, enabling automatic on/off functionality and promoting energy savings.
The OSP20-RD0 Power Pack is engineered to support both fluorescent and incandescent loads, making it an ideal choice for various applications. It features a robust 20-amp capacity, ensuring it can handle the power demands of multiple devices with ease. The unit's compact design, measuring only 8.5 inches in length, allows for easy installation in tight spaces, such as HVAC ductwork or ceiling plenums.
Constructed with high-quality materials and components, the OSP20-RD0 Power Pack is built to withstand the rigors of daily use in HVAC environments. Its powder-coated steel enclosure provides both durability and corrosion resistance, ensuring the power pack retains its performance even in harsh conditions.
One of the most notable features of the OSP20-RD0 Power Pack is its compatibility with occupancy sensors. This integration allows the power pack to automatically turn on or off based on the presence of people in the space, helping to conserve energy and reduce utility costs. The power pack also includes a built-in transformer, simplifying the wiring process and reducing the overall installation time.
The Leviton 078477144305 OSP20-RD0 Fluorescent/Incandescent Power Pack for Occupancy Sensor HVAC is an essential component for any HVAC system seeking energy efficiency and versatility. Its robust design, compatibility with various load types, and automatic occupancy sensor control make it a valuable investment for businesses and homeowners alike.
Pros and Cons of buying a Leviton OSP20-RD0 Fluorescent/Incandescent Power Pack for Occupancy Sensor HVAC
1. **Pros:**a. Energy Efficiency: The Leviton OSP20-RD0 power pack is designed to work with both fluorescent and incandescent bulbs, making it suitable for various lighting applications. It also includes an occupancy sensor that automatically turns off lights when the room is unoccupied, helping to save energy and reduce electricity bills.
b. Versatility: This power pack is compatible with most HVAC systems, making it a versatile choice for various commercial and residential applications. It can be used in offices, schools, healthcare facilities, and other buildings where energy efficiency and automation are essential.
c. Cost-Effective: By using an occupancy sensor, the Leviton OSP20-RD0 power pack can help reduce the need for constant lighting, leading to energy savings over time. This can result in significant cost savings for businesses and homeowners.
d. Easy Installation: The power pack is designed for easy installation, with a simple wiring configuration and clear instructions. This can save time and labor costs for professional installers or DIY enthusiasts.
2. **Cons:**a. Limited Bulb Wattage: The OSP20-RD0 power pack is designed for use with fluorescent bulbs up to 132 watts and incandescent bulbs up to 60 watts. This may not be suitable for high-wattage applications.
b. Occupancy Sensor Range: The occupancy sensor has a maximum detection range of approximately 25 feet, which may not be sufficient for larger rooms or areas with high ceilings.
c. Limited Compatibility with Dimmable Bulbs: The power pack is not compatible with dimmable bulbs, which may be a limitation for applications where dimming is required.
3. **Conclusion:**The Leviton OSP20-RD0 fluorescent/incandescent power pack for occupancy sensor HVAC is a cost-effective and energy-efficient solution for various lighting applications. Its compatibility with both fluorescent and incandescent bulbs, easy installation, and automatic occupancy sensor make it a versatile choice for commercial and residential buildings. However, its limited bulb wattage, occupancy sensor range, and compatibility with dimmable bulbs may be limitations for some applications.
4. **Recommendation:**If you are looking for an energy-efficient and cost-effective solution for your lighting needs, the Leviton OSP20-RD0 power pack is a solid choice. However, it may not be suitable for high-wattage applications, large rooms, or areas where dimming is required. Carefully consider your lighting needs and the limitations of the power pack before making a purchase.
Details:
The unit can be placed inside or outside the junction box with a simple twist-on nut. The osp power pack series is also used to supply power the OAS add-a-relay model. Power pack for occupancy sensor with hvac relay 0.5a 125 vac 1.0a 30vdc, 20 fl/inc, 120-277vac 60hz, 1hp 120vac, 2hp 240vac. The internal relay can control up to 20 amps at either 120, 230, or 277 vac ballast load, 15 for 347 load.
From the manufacturer, containing both a 24vdc supply and 20a line voltage relay for most model's, compact power pack provides low control occupancy sensors. The internal relay can control up to 20a for a 120, 230, 277vac or 347v ballast load and 120vac incandescent. Power supply for all os series occupancy sensors and add-a-relay, switches incandescent, magnetic electronic fluorescent, low- voltage motor loads, compact size light weight allows easy mounting through knockout in junction box from either inside or outside box with a simple twist-on nut. The power pack conveniently mounts in a knockout hole of standard junction box.
Versions include auto-on and manual-on inputs for occupancy sensors, hold-on hold-off capabilities, a local input momentary or maintained dry contact switches.
specifications entrysyst:
- brand: Leviton
- part type: Sensor Hvac
- color: Black
- upc: 078477144305
- package dimensions lxwxh: 4.96x2.95x2.36 Inches
- weight: 0.44 Pounds
shipping entrysyst:
- type: fixed
- service: standard
- class: standard
- transit: 4-10 days
general entrysyst:
- category: Home & Garden > Security > Door Entry Systems Intercoms
seller entrysyst:
- rating: 100.0%
- # reviews: 997
- city: brentwood, new york
offer entrysyst:
- options: ship-to-home
- started: february 25, 2025
- sold #: 26
- availability: in stock
- prices: $20.00–$160.00
- item condition:
- New – Open box
- New
- Used
- in stock #: 5
payments entrysyst:
- credit card: visa
- wallet: google-pay
- other
returns entrysyst:
- paid by: seller
- method: money back
- time: 30 days
- policy: returns accepted
Grouped With:
- 078477977699: COVER, Leviton



















