Product Summary
The Allen-Bradley 1734-IM4 delivers four non-isolated sink inputs for robust AC sensing. This module operates at a nominal 220 Volts AC. It fits seamlessly into the compact POINT I/O platform for flexible system design.
Expert Technical Evaluation & Performance Review
This module reliably monitors AC signals with a wide on-state voltage range. It functions from 159 to 264 Volts AC. This tolerance ensures stable operation despite line fluctuations. The 1734-IM4 uses a nominal input impedance of 22.3 kiloohms. This high impedance minimizes the module’s electrical load on your sensors.
The input delay features a fixed 20-millisecond hardware filter. You can program an additional digital filter from 1 to 65.535 milliseconds. This programmable delay effectively filters out electrical noise. It prevents false triggering in harsh industrial environments. The module requires a maximum POINTBus current of 75 milliamps at 5 Volts DC. This low power draw reduces strain on your system’s backplane supply.
We verify the module's thermal performance for high-reliability applications. The maximum power dissipation is only 0.80 Watts at 264 Volts AC. The system dissipates up to 2.73 BTU per hour under full load. This efficient thermal design supports dense panel layouts without overheating.
Product Procurement & Buyer Guide
Procurement teams must confirm several key system requirements for the 1734-IM4. This module requires a mounting base with a keyswitch in position 8. This mechanical keying prevents incorrect module installation. The input channels are labeled from 0 to 3 for easy identification. Each channel provides a clear status indicator for immediate visual feedback.
Engineers should note the specific wiring requirements for this digital input module. It accepts only 22 to 14 AWG solid or stranded copper wire. This specification ensures a secure and reliable connection. The module’s compact dimensions are 2.21 x 0.47 x 2.97 inches. Its lightweight design of 30.9 grams simplifies installation in tight spaces.
Installers must mount the open-style enclosure on a standard DIN rail. The module provides a continuous isolation voltage of 240 Volts from the field-side. This isolation protects the system from ground loops and voltage spikes. The non-isolated group design requires careful grouping of input commons. This configuration simplifies wiring for a single potential group.
