B Series electronic “button type” photocontrols have the same features and performance of electronic twist-lock photocontrols. Energy efficiency is maintained with tight On/Off ratios and “non-drift operation”. Maintenance costs are reduced through a cool running DC circuit. Life expectency is up to three times longer than traditional heat generating thermal relay designs. The B Series uses the same field proven electronic circuit design as is used in Sun-Tech high performance twist-lock photocontrols.

• Meets or exceeds ANSI C136.10.
• Proven DC circuit design.
• Close 1:1.5 on to off operating ratio.
• Non-chatter load break.
• Surge Protected Electronic Circuit.
• Heavy duty construction.

• 12 year expected life.
• Low power consumption and extended life from "cool" operating DC circuit.
• Close ratio reduces burning hours at sunrise.
• Extended life and accuracy from non-drift operation throughout its life.
• Significantly reduced energy costs.
• Significantly reduced maintenance costs.

Model	Voltage
B120	105 - 130
B124	105 – 305
B240	195 – 305

Load Rating:
1000 Watt tungsten, 1800 VA

Life at rated load:
5,000 Operations (13.7 Years)

Power Consumption:
1.0 watts average @ 120 volts
1.6 watts average @ 208 volts
1.9 watts average @ 240 volts
2.1 watts average @ 277 volts

Moisture Resistance:
100% RH.

• 90 Joule.
• 160 Joule.

Operating Light Levels:
+/- 0.1 fc. from specified turn-on level.
1:1.5 Average turn-on to turn-off ratio.

Photosensor:

• Conformally coated cadmium sulfide photocell.
• Encapsulated phototransistor.

Dielectric Strength:
5,000 Volts between any current carrying part.

Ambient Temperature Range:
-40°C to +70°C (-40°F to + 158°F).