Allen-Bradley 937TH-DISAR-DC2 SERIES A, SWITCH AMPLIFIER, #302486 937THDISARDC2

Description:

The Allen-Bradley 937TH-DISAR-DC2 Series A Switch Amplifier (#302486) is used in industrial automation systems to condition and amplify signals from electromechanical limit switches and discrete sensors for reliable digital input interfacing. Commonly installed in control panels, machine safety circuits, conveyor systems, and automated production lines where dependable detection of switch states is required. Maintenance teams and system integrators use this switch amplifier for signal conditioning upgrades, control panel retrofits, replacement of failed amplifier modules, and enhanced digital signal reliability.

Applications: 

The Allen-Bradley 937TH-DISAR-DC2 switch amplifier is commonly used in industrial environments including material handling systems, packaging lines, robotic workcells, safety gate interlocks, and machine control panels where accurate monitoring of switch contacts improves discrete signal detection, operator safety, and process coordination.

Technical Specifications:

• Manufacturer: Allen-Bradley
• Model: 937TH-DISAR-DC2 (Series A)
• Part Number: 302486
• Product Type: Switch Amplifier / Signal Conditioner
• Function: Amplifies and conditions discrete switch signals for PLC input
• Input Signal Type: Electromechanical switch/limit switch signals (DC logic)
• Output Signal Type: Conditioned digital output for controller I/O
• Power Supply: DC control voltage (model dependent)
• Mounting Type: Panel or DIN rail mounted signal module
• Compatibility: Industrial control systems and discrete input networks
• Indicators: Status LED(s) for signal and power presence (model dependent)
• Application Category: Discrete switch signal conditioning and amplification
• Operating Temperature Range: Industrial-rated conditions
• Protection Rating: Installed within control enclosure

Common Replacements:

• Allen-Bradley 937TH-DISAR-DC1 Switch Amplifier
• Allen-Bradley 937TH-DISAR-AC2 Switch Amplifier
• Rockwell 937TH Series Switch Amplifier Module