Overview
The Reliance Electric 45C37B is a remote I/O interface module engineered for distributed input/output operations within Automate control systems. This remanufactured interface head connects remote I/O racks to Automate processors, facilitating flexible, long-distance communications for legacy industrial automation environments. The 45C37B serves as a critical bridge in multi-location PLC networks, consolidating field wiring and supporting centralized control architectures.
Key Features
- Remote I/O Interface: Connects distributed Reliance Electric I/O modules within Automate control systems, enabling remote communication across field locations.
- Wide Voltage Support: Operates across 120 or 240 VAC input at 50/60 Hz, accommodating diverse industrial power configurations without module replacement.
- Integrated Fuse Protection: Equipped with a 250 VAC AGC 2-amp fuse to safeguard internal circuits against power surges and transient faults.
- Compact Form Factor: Measures 14″ × 10″ × 8″ with an 8 lb. shipping weight, suitable for wall-mount or rail installation in control cabinets and enclosures.
- Low Power Draw: Consumes only 0.25–0.5 amps, minimizing electrical load in plant-wide automation networks.
Technical Specifications
| Input Voltage | 120–240 VAC |
| Frequency | 50/60 Hz |
| Current Draw | 0.25–0.5 amps |
| Fuse Protection | 250 VAC AGC 2-amp |
| Dimensions | 14″ H × 10″ W × 8″ D |
| Weight | 8 lbs |
| Controller Platform | AutoMate (15, 20, 30, 40) |
| Interface Type | Remote I/O Head Module |
| Manufacturer | Reliance Electric |
| Part Number | 45C37B (80280329RG) |
Typical Applications
- Distributed I/O networks spanning multiple plant locations or production cells
- Remote PLC processor-to-I/O rack communication over long cable runs
- Legacy Automate control system expansions and upgrades
- Industrial facilities requiring centralized control with field-mounted I/O modules
- Process automation environments where wiring consolidation reduces installation costs
Compatibility & Replacements
Compatible With
- Reliance Electric AutoMate 15, 20, 30, and 40 processors
- Reliance Electric AutoRail and Digital Rail I/O modules
- Reliance Industrial Network (R-NET) distributed control systems
- Legacy AutoMate automation platforms manufactured through the 2000s
Replaces / Drop-In Replacement For
- Original Reliance Electric 45C37 (non-B variant)
- 45C378 (limited cross-compatibility—verify with integrator)
- Verify compatibility with your system integrator before ordering to ensure correct revision.
Works With
- Reliance Electric AutoMate programming software
- R-NET industrial network protocol
- Standard RS-232 and coaxial fieldbus communications
- Automate controller memory modules and I/O configuration tools
