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Technical Specifications
| Parameter Name | Value |
|---|---|
| Product Model | Reliance Electric 57C493 |
| Manufacturer | Reliance Electric (now ABB/Rockwell Automation) |
| Product Family | AutoMax PLC / DCS 5000 |
| Product Type | Power Supply Module |
| Output Power | 376W (Rated 375W) |
| Nominal Input Voltage | 100-120VAC |
| Acceptable Input Range | 85-132VAC |
| Input Current | 6A (at 120VAC) |
| Input Frequency | 47-63Hz (Nominal 50/60Hz) |
| Isolation Rating | 1500VAC Input-to-Input / 600VDC Output-to-Rack |
| Efficiency | Minimum 75% at Full Load |
| Rack Compatibility | 10-Slot and 16-Slot Racks (Not Compatible with 6-Slot) |
| Slot Requirement | 3 Slots, Leftmost Installation |
| LED Indicators | POWER and FAULT |
| Battery Backup | Yes (Connector Included) |
| Housing Material | Aluminum Chassis with Heatsink |
| Physical Dimensions | 11.75″ × 4″ × 7.75″ / 298mm × 102mm × 197mm |
| Weight | Approx. 3.8kg (8.5 lbs) |
| Operating Temperature | 0°C to +60°C |
| Relative Humidity | 5-90% (Non-Condensing) |
| Manual Reference | J2-3008 |
| Compliance | UL, CE (Per Applicable Standards) |
Main Features and Advantages
Robust power delivery: The Reliance Electric 57C493 provides 376 watts of continuous output power, making it suitable for powering large AutoMax systems with multiple modules. Its minimum 75% efficiency at full load ensures effective power conversion while minimizing waste heat generation.
Comprehensive protection systems: The Reliance Electric 57C493 integrates multiple protective features including over-voltage protection, over-current protection, and a replaceable 250V fuse to safeguard the module and downstream components from electrical faults. The 1500VAC input-to-input and 600VDC output-to-rack isolation ratings provide superior electrical separation, enhancing system safety and reliability.
Battery backup connectivity: The Reliance Electric 57C493 includes a battery backup connector that allows connection to an external battery, enabling the AutoMax system to retain processor states and critical data during temporary power interruptions. This feature is particularly valuable in applications where continuous operation and data integrity are essential.
Diagnostic and status monitoring: The Reliance Electric 57C493 features two front-panel LEDs labeled POWER and FAULT, providing immediate visual indication of module health. A key switch with PROGRAM, MEMORY PROTECT, and SETUP positions offers convenient configuration control, while the covered terminal strip ensures secure and protected wiring connections. The FAULT LED should remain off during normal operation; if illuminated, it indicates a system issue requiring investigation.
Rugged industrial construction: The Reliance Electric 57C493 is housed in a protective aluminum chassis with an integrated heatsink, providing excellent thermal management and mechanical strength for industrial environments. This design ensures reliable operation even in settings with elevated temperatures and vibration.
