P144.R4 Industrial Control Module

This Phoenix Contact P144.R4 module delivers precise relay control for complex industrial systems. Designed for environments where reliability and electrical safety are critical, it handles tasks like motor switching, valve actuation, and alarm triggering across manufacturing lines, energy grids, and HVAC systems. Its compact form factor and DIN rail design make it ideal for space-constrained control cabinets.

Manufacturer: Phoenix Contact

Order Number: P144.R4

Series: P144 Series

Input Voltage: 24 V DC

Operating Temperature: -25°C to +60°C

Protection Class: IP20

Certifications: CE, UL, RoHS

Dimensions: 22.5 mm x 100 mm x 115 mm

Communication Interface: Serial RS-485

Function Type: Relay Output Module

Number of Outputs: 4 Relay Outputs

Output Current: 5 A per channel

Isolation Voltage: 2500 V

Mounting Type: DIN Rail Mount

Weight: 120 g

Engineers in automotive plants often use this module for conveyor belt sequencing, while building automation specialists deploy it for lighting control in commercial complexes. The 2500 V isolation rating makes it suitable for power substations with high electrical noise. A technician from a chemical facility mentioned how its -25°C cold start capability ensured uninterrupted operation during winter outages. We commonly pair this with Allen Bradley PLCs or Siemens SCADA systems for hybrid installations.

Despite lacking redundant channels, the module’s mechanical relay design offers fail-safe operation during power surges. The RS-485 interface supports Modbus RTU protocols for compatibility with legacy systems. Users appreciate the DIN rail clips that reduce installation time by 30% compared to panel-mounted alternatives. While the IP20 rating limits outdoor use, its EMI immunity meets EN 61000-6-2 standards for factory floor deployment. The 5A per channel rating allows direct control of solenoids without intermediate contactors, simplifying system architecture.