



The Yokogawa AAR145 is a dependable analog redundancy and relay output module designed to elevate resilience and operability in industrial control and automation systems. Engineered to work seamlessly within Yokogawa distributed control environments, this module plays a critical role in ensuring system continuity through failover capability and robust analog signaling. The AAR145 supports high‑integrity signal delivery while reducing the risk of single‑point failures, making it a smart investment in environments where uptime, safety, and precision matter most — from manufacturing floors to energy and utility infrastructures.
Technical Specifications
| Feature | Specification |
|---|---|
| Model | Yokogawa AAR145 |
| Module Type | Analog Redundancy / Relay Output Module |
| Output Type | Redundant Analog Outputs / Relay Outputs |
| Number of Outputs | 4 (Analog Relay Outputs) |
| Output Signal Range | 4–20 mA (Typical Analog) / Contact Outputs |
| Redundancy Support | Dual channel redundancy for safe operation |
| Isolation | Galvanic isolation across outputs |
| Response Time | ≤10 ms |
| Operating Temperature Range | −20 °C to +60 °C |
| Mounting Type | DIN Rail / System Carrier |
| Dimensions (W×H×D) | 50 mm × 120 mm × 145 mm |
| Weight | 0.45 kg |
Recommended Related Models
-
Yokogawa AAP149‑S00 – High‑density analog input/output module for broad signal support.
-
Yokogawa AAM51‑S2 – Flexible analog I/O module with fewer channels and faster throughput.
-
Yokogawa AAR130 – Analog redundancy module supporting alternative analog failover strategies.
Popular Allen Bradley Models
-
Allen Bradley 1756‑HRV – High‑speed relay output and redundancy module for ControlLogix systems.
-
Allen Bradley 1769‑OW16I – Output and redundancy solution for CompactLogix platforms.
-
Allen Bradley 1734‑RE4 – Relay expansion module for POINT I/O distributed systems.