FB120A LITTELFUSE | Alldatasheet
Document overview
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Technical content
© 2016 Littelfuse Protection Relays & Controls Flashers and Tower Lighting Controls Tower and Obstruction Lighting Controls www.littelfuse.com/fb Rev: 1-A-062316 Wiring Diagram FB SERIES Flasher & Incandescent Beacon Alarm Relay
Description
The FB Series is used to monitor the operation of one two- lamp incandescent beacon and one beacon flasher (or auxiliary module). The flasher and lamps are monitored by sensing the flow of current in the circuit. If the lamp(s) or the flasher fail to operate properly, a solid-state output and an isolated SPDT relay energize. When connected to a site monitoring system, this unit provides the remote beacon monitoring protection required by the FAA/FCC. On a multiple beacon structure, one unit is required for each two-lamp incandescent beacon (one unit per beacon for LED beacons). Operation If one lamp in an incandescent beacon fails, the relay and solid- state lamp failure outputs energize after 10s. If the flasher fails in the ON or OFF condition, the relay and the solid-state flasher failure output energizes after 6s. If both failures occur, all three outputs energize after their trip delays. Note: If both incandescent lamps fail, all three outputs will energize. The relay and solid-state flasher failure output energizes after 6s, and the solid-state lamp failure output energizes after 10s. Features & Benefits FEATURES BENEFITS T oroidal current sensing Reliable low cost monitoring of the flasher and lamps through built-in CT and provides isolation from the monitored circuit Failsafe beacon monitoring Alarm monitors for failed incandescent lamps in addition to flasher function One isolated, 5A, SPDT alarm output plus two, 1A, solid-state line voltage alarm outputs When connected to a site monitoring system, it provides the remote beacon monitoring protection required by the FAA / FCC. Fixed trip delays for flasher (6s) and lamp (10s) failures Prevents nuisance alarms L1 N/L2 V = Voltage B = Beacon F = Flasher T = Toroid BRC = Flasher Bypass Relay Contacts AR = FB Alarm Relay BR = Bypass Relay Coil FL = Flasher Failure LED LL = Lamp Failure LED AXL = Lamp Alarm Relay Coil NOTE: Flasher module may be located on either the line or load side of the toroidal sensor.
Ordering Information
MODEL LINE VOTAGE LAMP TYPE FB120A 120VAC Incandescent Beacon FB230A 230VAC Incandescent Beacon If you don’t find the part you need, call us for a custom product 800-843-8848
© 2016 Littelfuse Protection Relays & Controls Flashers and Tower Lighting Controls Tower and Obstruction Lighting Controls www.littelfuse.com/fb Rev: 1-A-062316 FB SERIES Specifications Input Voltage FB120A 120VAC ±15% FB230A 230VAC ±15% AC Line Frequency 50/60Hz Lamp Socket Voltage ±10%; 50/60Hz Alarm Outputs Type 3 total - 1 relay, 2 solid state; One isolated SPDT relay rated 5A resistive Two solid-state line voltage outputs rated 0.5A steady, 5A inrush Lamp Failure Detection FB120A For two 620W or 700W lamps FB230A For two 500W or 700W lamps Trip Delays Flasher Failure Fixed at 6s; -0/+40% Lamp Failure Fixed at 10s; -0/+40% LEDs Lamp Failure (Red) Glows when one or both lamps fail Flasher Failure (Red) Glows when the flasher fails Protection Circuitry Encapsulated Mounting Surface mount with two #6 (M3.5 x 0.6) screws Dimensions H 88.9 mm (3.5”); W 63.5 mm (2.5”); D 44.5 mm (1.75”) Termination 7 position barrier block for 20 AWG (0.5 mm 2) to 14 AWG (2.5 mm2) wire Environmental Operating/Storage Temperature -55° to 60°C / -55° to 85°C Weight ≅ 7 oz (198 g)