We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular relay pack with hard-wired terminals, 3 by 2.25 by 1.88 inches

Acuity Sensor Switch

Acuity Sensor Switch SP20 Power Pack contactor

SKU CH-FQ4N-F4NDE

Relay pack powers up to seven low-voltage occupancy sensors with a 20 A relay, accepting 120, 240 or 277 V AC input and delivering 15 V DC output while meeting UL2043 plenum.

  • Powers up to seven sensors from a single pack
  • Handles 120, 240 and 277 V AC inputs with 15 V DC output
  • Delivers 20 A relay switching for reliable load control
  • Meets Plenum UL2043, RoHS and Title 24 compliance standards
  • Operates from 14 to 122 °F in a compact 3 × 2.25 × 1.88 in enclosure

Relay Pack for Low-Voltage Sensors

The Acuity Sensor Switch SP20 Power Pack is a relay module designed to work with Series Acuity low-voltage occupancy sensors. It provides a 20 A switching capacity for lighting or other loads. The unit operates on 120, 240, or 277 V AC input and delivers 15 V DC output to power connected sensors. It is plenum rated per UL2043 and meets Title 24 and RoHS requirements.

Hard-Wired Integration for Building Systems

The pack communicates with sensors through hard-wired connections and fits inside standard enclosures measuring 3 in high, 2.25 in wide, and 1.88 in deep. A single unit supports up to seven sensors, reducing the number of power packs required in a zone. The integrated 20 A relay switches line-voltage loads directly, freeing the low-voltage sensor network from carrying high current. Operating range spans 14 to 122 °F for indoor commercial environments.

Suited for Commercial Lighting Control Projects

This power pack suits contractors and facility managers adding occupancy-based control to new or retrofit installations where plenum-rated, hard-wired sensors are specified. It is not intended for wireless sensor protocols, line-voltage sensor inputs, or applications requiring more than seven sensors per pack. Buyers needing higher relay counts, different input voltages, or wireless communication should look at alternative control architectures.

Highlights

  • Powers up to seven sensors from a single pack
  • Handles 120, 240 and 277 V AC inputs with 15 V DC output
  • Delivers 20 A relay switching for reliable load control
  • Meets Plenum UL2043, RoHS and Title 24 compliance standards
  • Operates from 14 to 122 °F in a compact 3 × 2.25 × 1.88 in enclosure

Specifications

BrandSENSORSWITCH

Questions about this item

What is the maximum operating temperature of the SP20 power pack?

The unit is rated for a maximum operating temperature of 122 degrees F and a minimum of 14 degrees F.

How much heat or power does the SP20 draw when running continuously?

It accepts 120, 240 or 277 V AC input and delivers 15 V DC at up to 20 A through its integrated relay.

Which low-voltage sensors must I already own for the SP20 to function?

It is compatible with Acuity Sensor Switch Series low-voltage sensors and supports up to seven sensors per pack.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.