Allen‑Bradley 1336‑B003‑ECD‑FC3‑L1 3‑HP 460V AC Adjustable Frequency Drive

Technical Specifications

Model:1336‑B003‑ECD‑FC3‑L1

Brand:Rockwell Allen‑Bradley

Product Type:Complete AC Adjustable Frequency Drive Unit

Applicable Series:1336‑PLUS Constant‑Torque AC Drive

Power Rating:3 HP / 2.2 kW

Input:3‑Phase, 380‑480V AC, 50/60 Hz

Output Rated Current:5.0‑6.0A

Output KVA:3.9‑4.8KVA

Enclosure Type:ECD (NEMA‑4 / IP56 fully sealed metal enclosure, dust‑tight, splash‑proof, wash‑down capable for harsh plant environment)

Factory Options:

‑ FC3: FC3 NEMA4‑rated local HIM operator panel (sealed membrane keypad, local start‑stop, speed potentiometer, LED fault/status indicators, purpose‑built for NEMA4 enclosure front‑door mounting)

‑ L1: L1 +5 V DC TTL contact‑closure logic I/O expansion board, provides additional +5V logic‑level digital input / relay output channels for external interlock and status feedback

Control Mode:Sensorless vector control, V/F control

Speed Regulation Accuracy:Open‑loop ±0.5% rated speed

Overload Rating:150% rated current for 1 minute (constant‑torque)

Installation Method:Indoor / semi‑outdoor wall‑mount surface mounting, suitable for wash‑down, dusty, splash‑prone production floors

Operating Temperature:0℃ ~ +40℃

Storage Temperature:-40℃ ~ +70℃

Product Details

1336‑B003‑ECD‑FC3‑L1 is factory‑optioned complete NEMA4 IP56 sealed‑enclosure 3‑HP 460V 1336‑PLUS AC drive, not separate PCB boards. Based on base model 1336‑B003‑ECD, factory pre‑installed FC3 NEMA4‑sealed local HIM human‑interface panel and L1 +5 V DC TTL‑level logic I/O expansion board.

The FC3 HIM is a fully sealed membrane‑type operator unit specially engineered for NEMA4 enclosure front‑panel mounting. It provides local on‑unit operation: physical sealed start/stop push‑buttons, analog speed‑setting potentiometer, running/fault LED‑status indication. Operators can view basic drive parameters locally without external HIM accessories; membrane construction prevents ingress of dust, water spray and cleaning wash‑down liquids into control keypad area, cannot be interchanged with FA2 (NEMA1‑type) HIM panels.

The L1 option adds expanded +5 V DC TTL‑compatible discrete digital inputs and relay outputs. These +5V logic‑level channels are intended for interfacing with TTL‑based PLC or sensor hardware; supports additional equipment interlock logic, external status feedback, multi‑source dry‑contact command signals, different from 24V‑level L2 and 115V‑AC‑level L3 interface boards.

Internal hardware integrates rectifier power stack, inverter IGBT power section, main control CPU board, auxiliary power supply, sampling and signal‑conditioning circuits. Supports sensorless vector and V/F control for standard three‑phase induction motors. Accepts external analog speed reference, discrete start‑stop interlock signals, supports SCANport communication expansion via external option adapters.

Full protection suite: over‑current, over‑voltage, under‑voltage, over‑temperature, input phase‑loss, motor thermal overload, ground‑fault protection. Used for full‑unit replacement when multiple internal assemblies suffer compound damage. When swapping complete drive, back‑up original parameters, verify firmware compatibility and complete motor auto‑tuning. Signal wiring shall adopt shielded cable; strictly separate power cable and signal cable routing. Strict ESD protection required for installation and commissioning.

Typically applied for overhaul of legacy food‑processing machinery, packaging equipment, wash‑down‑grade conveyors, dusty factory‑floor pumps and fans where NEMA4 splash‑proof / dust‑tight enclosure rating is mandatory, requiring local front‑door operation plus extra +5V TTL‑logic interlock I/O.

Remark:Legacy EOL complete drive unit;original production discontinued;please confirm motor rating, enclosure environmental requirement, logic signal voltage level (+5V TTL for L1), input voltage, installation dimension and option function matching before purchase.