• B501-WP base is intended for use in an Intelligent System Sensor with screw terminals provided for power (+) and (–), and remote annunciator connections. The communication takes place over the power (+) and (–) lines.

• Sleek, low-profile design
• Similar housing for photo, heat and ion unit
• Compatible with 500 series product
• Address-analog communications
• Stable communication technique with noise immunity
• Low standby current
• Rotary decade address switches
• Optional remote LED accessory

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B501-WP Waterproof Detector Base

• Base Diameter: 104 mm (4.0 inches)
• Base Height: 20 mm (0.8 inches)
• Weight: 65 g (0.14 lb.)
• Mounting: 50 mm, 60 mm, and 70 mm centers
• IP Rate: IP 54
• Temperature: -10°C to +50°C (14°F to 122°F)
• Relative Humidity: 10% to 95% RH
• Electrical Ratings — includes base and detector
• System Voltage: 15 to 32 VDC
• Standby Current: 150μA at 24 VDC
• Start-up impact: 1.5 mA Max per second
• LED Current: 6mA at 24 VDC

• UOM EA