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Allen Bradley 509-AAD Motor Control Contactor, 3-Pole

Allen Bradley 509-AAD NEMA Size 1 Motor Control Contactor.

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ManufacturerAllen Bradley

Part number509-AAD

Poles 3

NEMA Size 1

Max Motor HP (230V) 7.5 HP

Max Motor HP (460V) 10 HP

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3-pole configuration NEMA Size 1 High AC-3 current rating Robust construction for industrial use Legacy Bulletin 509 series Reliable motor switching

Product description

The Allen Bradley 509-AAD is a 3-pole motor control contactor, part of the legacy Bulletin 509 series. This NEMA size 1 contactor is rated for 27A (AC-3 duty) and is designed for switching AC motor loads. It provides robust and reliable electrical switching for motor starting and stopping applications.

This contactor is commonly used in industrial motor control applications, such as conveyor systems, pumps, and fans, where a NEMA size 1 rating is required for protection and performance.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Allen Bradley 509-AAD. We are a trusted source for surplus industrial automation components, helping you maintain your existing systems with quality-tested parts and minimize unexpected downtime.

Technical specifications

Poles	3
NEMA Size	1
Max Motor HP (230V)	7.5 HP
Max Motor HP (460V)	10 HP
AC-3 Rating	27A
Coil Voltage	110-120VAC
Series	Bulletin 509

Common applications

Motor starting

Motor stopping

Industrial machinery

Conveyor systems

Pump control

Fan control

Compatible systems

3-Phase Motors Motor Control Panels Industrial Automation

Also known as

Allen Bradley 509AAD Contactor Bulletin 509 Size 1 27A Motor Starter

Replaces / compatible with

The Bulletin 509 series is a legacy product line. For modern applications, consider the Allen-Bradley Bulletin 100 or 100S series contactors.

Technical note

Expert tip

This contactor requires a 110-120VAC control voltage for its coil. Verify wiring to prevent damage or malfunction.

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Frequently asked questions

What NEMA size and horsepower ratings are associated with the Allen Bradley 509-AAD contactor?

The Allen Bradley 509-AAD is a NEMA Size 1 contactor. It is rated for up to 7.5 HP at 230V and 10 HP at 460V for three-phase motor applications.