The Bulletin 505 series is a line of Allen Bradley starters, contactors, and overload relays that are NEMA-rated. This series includes solid-state overload relays and eutectic alloy overload relays. Devices in the Bulletin 505 series are available in NEMA sizes 00 to 9. Many Bulletin 505 starters are reversing starters that support full voltage starting and reversing functions for polyphase squirrel cage motors. Starters in this series are mechanically and electrically interlocked to prevent both contactors from being closed at the same time.
Browse available units in our catalog of Bulletin 505.
Designed for NEMA Size 3 applications, this starter features a duty cycle rated for continuous use. It operates at coil voltages of 110V at 50Hz or 120V at 60Hz. The unit has a field-installed overloa
This reversing starter features an average operating time of 22 milliseconds for pick-up and 14 milliseconds for drop-out. It is rated for frequencies between 50 and 60 Hertz and accommodates a servic
This model supports up to 8 auxiliary contacts and operates at frequencies between 50 and 60 Hertz. It is rated for a continuous current of 45 Amperes with a maximum circuit closing inrush current of
Operating on an input frequency of 50 to 60 Hertz, this device features an open-style enclosure with a NEMA 0 rating. It supports configurations from 3 to 5 poles. The overload protection is ensured t
Featuring a configuration of three poles, this reversing starter has an average pick-up time of 22 milliseconds and a drop-out time of 14 milliseconds. The device can endure up to 10 million operation
This reversing motor starter is rated as NEMA Size 2 and features three poles. It operates with a coil voltage ranging from 110 to 120 VAC and supports frequencies between 50 Hz and 60 Hz. Designed wi
This reversing starter has a NEMA Type 3 rating, assuring protection in outdoor or damp environments. It operates with a rated phase of 3-phase and can handle continuous amperage up to 90 Amperes, wit
Operating within a frequency range of 50 to 60 Hz, this motor starter features three poles and accepts a coil voltage between 110 to 120 V AC. The unit comes in an open style enclosure, making it suit
This reversing motor starter operates efficiently at a load voltage of 600 VAC and a coil voltage ranging from 110 to 120 VAC. It is rated NEMA Size 00 with three poles, supporting a continuous curren
This starter can handle a service limit of up to 156 Amps and a continuous current rating of 135 Amps. The peak inrush current reaches 1581 Amps. It accommodates a maximum motor rating of 75 Hp at 380