Pass & Seymour BZ250 Wattstopp...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$186.74
$81.14
Pass & Seymour BZ250 Wattstopper 24 VDC Universal Voltage Power Pack, Auto or Manual On/Off, Rated for Lighting or Plug Loads

Pass & Seymour BZ250 Wattstopper 24 VDC Universal Voltage Power Pack

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Model: PAS-BZ-250

In Stock (leaves warehouse same day if ordered before 3pm ET)

$186.74
$81.14
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Pass & Seymour BZ250 Wattstopper 24 VDC Universal Voltage Power Pack

The Pass & Seymour BZ250 is a Wattstopper 24 VDC universal voltage power pack designed to control lighting or plug loads with either auto-on or manual-on operation for code compliance. Built around a mechanically held latching relay, the BZ250 offers selectable power-loss behavior and a plenum-rated switching power supply for reliable operation in commercial and industrial lighting control systems. A built-in Load On/Off button lets installers verify wiring at the panel without additional test equipment, and Hold-On/Hold-Off inputs allow integration with occupancy sensors and other low-voltage control devices.

Key Features

  • Load Verification: Integrated Load On/Off button lets installers verify wiring directly at the power pack.
  • Mechanically Held Latching Relay: Selectable power-loss operation - On, Off, or last state - for predictable behavior during outages.
  • Auto-On or Manual-On Operation: Configurable switching modes support local energy-code compliance requirements.
  • Zero-Crossing Switching: Reduces relay contact wear for improved reliability and increased product life.
  • High-Efficiency Power Supply: Plenum-rated switching power supply suitable for installation in air-handling spaces.
  • Hold-On and Hold-Off Inputs: Enables coordination with occupancy sensors and other lighting control inputs.
  • Low Voltage Overcurrent Protection: Built-in protection helps safeguard the control circuit and connected devices.
  • 24 VDC Universal Voltage: Rated for both lighting and plug load control applications.

Technical Specifications

  • Country Of Origin: China
  • Product Height: 1.673 in
  • Product Line: Pass & Seymour
  • Product Width: 2.916 in
  • Product Depth: 1.634 in

Typical Applications

  • Commercial and Industrial Lighting Control Systems
  • Plug Load Control Circuits
  • Occupancy Sensor Power Supply and Switching
  • Lighting Relay Panels and Control Enclosures
  • Retrofit and New Construction Lighting Control Installations

Why Pass & Seymour?

Pass & Seymour brings Wattstopper lighting control engineering into a compact, mechanically held power pack built for dependable performance in demanding commercial environments. With a plenum-rated power supply, zero-crossing switching, and selectable power-loss behavior, the BZ250 is engineered to support code-compliant, reliable lighting and plug load control for professional electrical installations.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Power Pack
Voltage Rating:
24 VDC
Configuration:
Auto/Manual On/Off
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Lighting Controls & Sensors
Product Width:
2.916 in
Product Height:
1.673 in
Product Depth:
1.634 in

Pass & Seymour PAS-BZ-250 – Frequently Asked Questions

1) What does the Pass & Seymour BZ250 power pack actually do in an occupancy sensor circuit?
The BZ250 is the piece that both powers the sensor and switches the load. It supplies 24 VDC to low voltage control devices and switches the line voltage lighting or plug load circuit through a mechanically held latching relay. Hold-On and Hold-Off inputs let it coordinate with occupancy sensors and other low voltage controls, so the sensor only has to send a signal, not carry the load current.
2) Can the BZ250 be installed above a ceiling in a plenum space?
Yes. The switching power supply in the BZ250 is plenum rated, so it is suitable for installation in air handling spaces above a ceiling. That is the normal mounting spot for a power pack serving ceiling mounted occupancy sensors.
3) Will the BZ250 support manual-on (vacancy) operation for energy code compliance?
It will. The BZ250 is configurable for either auto-on or manual-on switching, so you can set it up as a vacancy style manual-on circuit where the local energy code requires it, or leave it auto-on where occupancy switching is permitted.
4) What happens to the lights if power drops out and comes back?
You choose. Because the BZ250 uses a mechanically held latching relay, power-loss behavior is selectable between On, Off, or last state. That matters in facilities where lights coming back on full after a brief outage is either required for safety or unacceptable for the tenant.
5) Can I use the BZ250 for controlled receptacles, not just lighting?
Yes, it is rated for both lighting and plug load control. Plug load control circuits, the controlled receptacles many energy codes now require in offices, are a listed application for this power pack.
6) How do I verify the wiring on a power pack before the sensors are commissioned?
The BZ250 has an integrated Load On/Off button. Press it at the power pack to toggle the load and confirm the line and load side wiring is correct, without a meter or a sensor connected. Useful on a rough-in where sensors go in after the ceiling closes.
7) What are the physical dimensions of the BZ250 power pack for fitting it in a control enclosure?
The BZ250 body measures 1.673 in height, 2.916 in width, and 1.634 in depth. It is small enough to sit in a lighting relay panel or control enclosure, which is one of its listed applications along with above-ceiling mounting.
8) Is the low voltage side of the BZ250 protected if a sensor wire gets shorted?
The BZ250 includes built-in low voltage overcurrent protection on the control circuit, which guards the power supply and the connected low voltage devices. Pair that with zero-crossing switching on the relay, which reduces contact wear on the load side.
9) What is the exact part number and brand for this Wattstopper power pack?
Order it as Pass & Seymour BZ250, manufacturer part number BZ-250. It is the Wattstopper 24 VDC universal voltage power pack with auto or manual On/Off configuration. Country of origin is China.
How fast can I get the Pass & Seymour PAS-BZ-250 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pass & Seymour PAS-BZ-250 come with a warranty?
Absolutely. The Pass & Seymour PAS-BZ-250 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pass & Seymour PAS-BZ-250?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pass & Seymour PAS-BZ-250 from ZenSupply?
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