Allen-Bradley 1492-IFM20F-F120A-2 20-Point Fusible Digital interface Module

The Allen-Bradley 1492-IFM20F-F120A-2 is a 20-point fusible digital interface module (IFM) designed for industrial PLC I/O wiring systems. Featuring a fixed terminal block structure, it includes 5 x 20mm fuse clips and two field-side terminals per I/O connection to accommodate extra wiring for inputs. The module features integrated 120V AC/DC blown fuse indicators that provide real-time status monitoring for rapid fault isolation in automated process and manufacturing systems.

Features

• 20-pin cable connector interface designed for digital input field connections.
• 5 x 20mm fuse clips with 120V AC/DC blown fuse indicator circuitry.
• Fixed screw-style terminal block with two field-side terminals per I/O connection.
• Extra terminal provision designed for input field device wiring.

Applications

• Programmable Logic Controller (PLC) digital input signal conditioning
• Industrial control panel interface wiring distribution
• Overcurrent and short-circuit field protection
• Manufacturing and process automation systems

Technical Specifications

Installation Guidelines

• Wiring Preparation: Strip conductor insulation to exactly 0.32 in. (8.0 mm) before inserting into the fixed screw terminal block.
• Torque Limits: Tighten terminal block screws to a torque range of 3.5...4.5 lb-in. (0.38...0.50 Nm) to secure solid or stranded copper conductors.
• Conductor Range: Connect field conductors ranging from #12 to #22 AWG (4.0 to 0.2 mm2).
• Transient Protection: For electrical systems subject to voltage transients exceeding 600V, install a UL Recognized suppression device rated at 2.5 kV withstand.

Compliance and Certifications

• cULus Listed: Hazardous Locations; Class I Div 2, Groups A, B, C, D (Temperature Code T3C @ 60 degC; File E10314, Guide NRAG)
• Factory Mutual (FM) Approved: Class I Div 2, Groups A, B, C, D (Temperature Rating T3C @ 60 degC; File J.I.3000590)
• CE Compliant