Product Details:

Allen-Bradley 1334-GJB belongs to Rockwell Automation Bulletin 1334 series heavy-duty adjustable frequency AC drive. Rated 20HP / 15kW, 380-460V three-phase AC input, output current 27.6A. This is a discontinued general-purpose VFD built for heavy-load three-phase AC motor variable speed control in industrial automation systems. It adopts full-wave diode bridge rectifier and power transistor inverter design, supports programmable V/Hz curve and adjustable voltage boost to match diverse load torque characteristics.

This inverter adopts NEMA Type 1 enclosure and supports cabinet panel mounting. It uses V/Hz open loop control strategy, supports continuous speed regulation for large fans, pumps and heavy conveyor equipment. It integrates comprehensive built-in protection functions including overcurrent, overvoltage, undervoltage, overheat and motor electronic overload protection to prevent equipment damage under abnormal working conditions. It accepts 0-10V or 4-20mA analog signals for remote speed setting and supports optional dynamic braking kit for fast deceleration applications. It complies with UL industrial standards and is widely used for spare part replacement and maintenance of legacy production lines.

Each Allen-Bradley 1334-GJB undergoes strict factory testing before shipment, including power-on running test, insulation resistance test and protection function verification to ensure stable performance in industrial automation environments.

Specifications:

Brand: Allen-Bradley (Rockwell Automation)

Model: 1334-GJB

Product category: Bulletin 1334 adjustable frequency AC drive

Rated power: 20HP / 15kW

Input voltage: 380-460V three-phase AC

Output current:27.6A

Output frequency:0~60Hz

Enclosure: NEMA Type 1

Mounting method: Panel mounting

Feature: Heavy-duty design, programmable V/Hz pattern, adjustable voltage boost, optional dynamic braking, multi-protection, discontinued legacy drive

Application: Heavy pump, fan, conveyor, old machine motor speed control

Working medium: Indoor industrial air environment

Working environment: Industrial site with normal vibration and temperature fluctuation