G4I-A12A

Description

A 16-point AC input module for LS G4/GLOFA PLCs, rated for 100–120 VAC inputs (50/60 Hz). Ideal where field signals are AC mains or AC-type sensors.

The Polar Energy Assessment:

G4I-A12A provides sixteen AC input channels with nominal 100–120 VAC rating and the electrical characteristics required for reliable detection in industrial AC circuits. It follows LS’s input module conventions for the G4 family and is listed in the official product catalog as the 110 VAC input variant of the 16-point AC input modules. Use this module when your sensors or contact outputs operate on AC mains or where AC sensing simplifies wiring.

Pros

• Standard 16 channels for compact high-density AC sensing.
• Designed to LS catalogue specs so compatibility and documentation are straightforward.
• Suitable where line-voltage sensors or AC contacts are used.

Limitations

• AC inputs consume more current per channel than DC TTL style inputs; check power considerations.
• Not suitable for DC-only sensing without external adapters.

Typical use cases

• Machine controls that read AC contactors, float switches or mains-powered sensors.
• Facilities where wiring standard uses 110 VAC auxiliary signals.
• Replacements in existing G4 PLC racks specifying the 110 VAC input module.