Overview
The Allen-Bradley 1336-MOD-L3 logic interface board is a control module designed for use with Allen-Bradley 1336 adjustable frequency AC drives. This 115VAC interface board provides the logic and switching capability to manage basic motor control functions, including run, stop, reverse, and jog operations. The board is housed in a NEMA Type 4 enclosure for industrial protection and is compatible with Bulletin 1336 drive systems commonly deployed in manufacturing, food processing, HVAC, and pump applications.
Key Features
- 115VAC input power supply—operates on standard industrial control voltage
- NEMA Type 4 protective enclosure—suitable for washdown and harsh environments
- Discrete logic inputs for Run, Stop, Reverse, and Jog motor control commands
- Compact PCB assembly—simplifies mounting and integration with 1336 drive enclosures
- TTL and relay output compatibility—allows integration with legacy and modern control systems
- Self-contained design—pre-wired for direct connection to 1336 AC drives
Technical Specifications
The 1336-MOD-L3 module provides reliable interface between external pushbuttons, switches, and control circuits and the main 1336 drive. Input signals control motor acceleration, deceleration, direction, and speed reference. The board supports adjustable frequency and voltage output to manage motor torque and speed across a wide operating range, with logic-level inputs that accept momentary and maintained contact signals.
Typical Applications
- Three-phase AC motor speed control in manufacturing lines
- Pump and fan drive applications requiring variable frequency operation
- Conveyor and material handling systems with Run/Stop/Reverse control
- HVAC and process cooling systems with thermal management
- Retrofit and replacement installations for legacy 1336 drive systems
Compatibility & Replacements
The 1336-MOD-L3 logic interface board is functionally identical to replacement boards with specification numbers 120673, SP-120673, 120675, and SP-120675. This board integrates directly with Rockwell Automation 1336 adjustable frequency drives and operates as a drop-in control interface. It has been discontinued by the manufacturer; however, used and reconditioned units remain available from industrial surplus suppliers. When specifying a replacement, confirm the revision level (this unit is REV. 01) and verify 115VAC input compatibility with your control circuit power supply.
