A03B-0819-C161 Relay Output Module GE FANUC

Configured for discrete load switching in industrial automation racks, the GE FANUC A03B-0819-C161 (A03B-0819-C161 Relay Output Module) provides direct physical execution across GE FANUC I/O systems. Hardware Specifications Parameter Specification Model A03B-0819-C161 Brand GE FANUC Origin Japan Weight 0.75 lbs (0.34 kg) Dimensions Standard A03B Series rack module dimensions Operating Temp 0 to 55 deg C Power Consumption Backplane logic bus driven Module Type Relay Output Module (AOR16G) Number of Output Points 16 points Max Switching Voltage (AC) 250 VAC Max Switching Voltage (DC) 30 VDC Max Current Capacity 2 A per point Backplane Bus & Deterministic Logic Execution The module interfaces with the primary controller backplane bus communication velocity architecture, transferring discrete status updates directly to output drive coils. Channel circuit design enforces galvanic isolation between backplane logic levels and field contact switching circuits, suppressing cross-talk and field-side electrical noise. High I/O density scaling allows 16 discrete load channels to be driven within a single slot, maintaining firmware flash compatibility with standard GE FANUC PLC rack assemblies. Frequently Asked Questions Q: What are the backplane insertion constraints for the A03B-0819-C161 relay module during maintenance? A: Module insertion and removal require complete de-energization of the rack backplane power supply. Removing the module while the backplane is powered can cause arc discharge across edge connectors and damage switching logic. Q: How is the maximum output contact current rating specified across channels? A: Each relay contact point supports a continuous resistive current limit of up to 2 A at maximum switching thresholds of 250 VAC or 30 VDC. Field Installation Guidelines Mechanical Mounting: Align the module bottom edge with the base card slot guide rails. Push evenly into the backplane connector until retaining latches click firmly into position. Cabinet Earthing: Verify that the rack mounting frame is bonded to the main functional earth (FE) bus bar using a low-impedance grounding strap. Field Wiring Layout: Route high-voltage AC/DC output contact wiring separately from low-voltage analog and communication lines to avoid inductive coupling. Contact Arc Suppression: When switching inductive loads (such as solenoid coils or motor contactors), install external snubber circuits or flyback diodes across field loads to prevent contact pitting and high-frequency noise generation.