Hubbell PBT-1 Button Photocontrol 1200W 120V Dusk to Dawn

Product Description

The HUBBELL PBT-1 is a compact button-type photocontrol designed for dusk-to-dawn lighting applications. Operating at 120 volts with a maximum switching capacity of 1200 watts, it handles ballast loads rated at 400 watts for high-power-factor (HPF) ballasts and 250 watts for normal-power-factor (NPF) ballasts. The unit mounts via a 3/8-inch diameter threaded nipple stem and is sized to fit inside protective enclosures such as wall pack fixtures or wiring boxes. An adjustable light shield is included for sensitivity control, allowing the installer to tune the photocell response to the ambient light conditions on site. It is listed by UL and CSA for use in both the United States and Canada.

The PBT-1 is intended for outdoor lighting circuits where automatic on-off control based on ambient light levels is required. Typical installations include wall pack luminaires, area lights, and exterior fixture assemblies in residential, commercial, and light industrial settings. The compact button form factor makes it well suited for installations where space inside the fixture or wiring box is limited. Its dusk-to-dawn switching function eliminates the need for manual switching of exterior lighting circuits.

Key Features

• Compact button-type form factor mounts inside fixtures or wiring boxes via 3/8-inch threaded nipple stem
• 120-volt rated with 1200-watt maximum switching capacity
• Supports HPF ballast loads up to 400 watts and NPF ballast loads up to 250 watts
• Adjustable light shield for on-site photocell sensitivity tuning
• UL and CSA listed for use in the United States and Canada
• Dusk-to-dawn operation for automatic exterior lighting control

Compatibility

Designed as an OEM-style replacement or new-installation photocontrol for 120-volt dusk-to-dawn outdoor lighting fixtures, including wall packs and area light assemblies that accept a stem-mount button photocontrol with a 3/8-inch threaded nipple.

Installation Notes

Installation should be performed by a licensed electrician in accordance with applicable NEC requirements. De-energize the circuit at the breaker before wiring or handling the photocontrol. The threaded nipple stem seats into the fixture knockout or wiring box; ensure the enclosure provides adequate protection from direct water intrusion. Adjust the light shield after installation to prevent stray light sources from causing unwanted switching behavior.

Technical Specifications

• Voltage Rating: 120 volts
• Maximum Wattage: 1200 watts
• Ballast Load Rating (HPF): 400 watts
• Ballast Load Rating (NPF): 250 watts
• Mounting Type: Stem, 3/8-inch diameter threaded nipple
• Type: Button, compact
• Application: Dusk to dawn lighting
• Height: 5 inches
• Length: 1.5 inches
• Width: 3 inches
• Approvals: UL, CSA (Canada and US)
• Country of Origin: US

Standard Information

• Brand: HUBBELL
• Manufacturer Part Number: PBT-1