Allen Bradley 300-DOD AC Contactor

Feature & Principle

It is a NEMA standard AC contactor of Allen Bradley Bulletin 300 series. After the coil is energized, the electromagnetic attraction pulls the movable contact to close, connecting the main power circuit of the motor; when the coil is de-energized, the contact is disconnected under the action of the return spring to cut off the motor power supply. It is equipped with auxiliary contact for status feedback and interlock control. Compact structure, finger-safe guarded terminal design, can be combined with overload relays and auxiliary contact blocks to realize overload protection and logic interlock.

Specifications

Model: 300-DOD Brand: Allen Bradley Series: Bulletin 300 Standard: NEMA rated Poles: 3 main poles + 1NO auxiliary contact Rated voltage: Up to 600VAC Installation: Panel mounting / DIN rail optional Terminal type: Screw terminal Protection class: IP20 (front) Certification: UL, CSA, IEC

Components & Diagnostics

Electromagnetic coil, static and movable main contact group, auxiliary contact, arc extinguishing cover, return spring, insulated plastic housing. Common faults: contact ablation and sticking, coil burnout, poor auxiliary contact signal, electromagnetic noise and heating.

Product Brief

Allen Bradley 300-DOD NEMA AC contactor, motor control spare widely used for industrial pump, fan and conveyor low voltage motor control circuit overhaul and replacement.