Description
The Reliance Electric 45C922 is a rack-mounted AC-to-DC power supply module designed for the Shark XL programmable controller platform. It accepts local AC line utility voltages and converts them into stabilized low-voltage multi-rail DC outputs to power the controller’s backplane, logic circuits, and auxiliary rack-mounted I/O modules.
Commercial and Legacy Status
- Condition: Refurbished (Fully Bench Tested) or New Surplus (In Original Box)
- Availability: Limited Legacy Stock Available
- Warranty: 12-Month Comprehensive Warranty
- Lifecycle Notice: This series is obsolete and no longer in active production by the OEM (Reliance Electric / Rockwell Automation). System maintenance teams should secure spare inventory to avoid extended downtime on critical legacy panels.
- Pricing Note: Price varies based on market availability and supply line constraints. Contact us directly for an official, firm quotation based on active stock levels.
Technical Specifications
| Parameter | Value / Specification |
| Manufacturer | Reliance Electric (Rockwell Automation) |
| Product Series | Shark XL / Shark XL II |
| Part Number | 45C922 |
| Input Voltage | 115 / 230 V AC (Jumper selectable) |
| Input Frequency Range | 47 to 63 Hz |
| Maximum Input Current | \le 600 mA |
| Output Channel 1 (Logic) | 5 V DC at 1700 mA maximum load |
| Output Channel 2 (Auxiliary) | 24 V DC at 500 mA maximum load |
| Output Channel 3 (Field/Sensor) | 24 V DC at 250 mA maximum load |
| Form Factor | Rack-mounted (occupies dedicated power slot) |
| Operating Temperature | 0 to +55 °C (+32 to +131 °F) |
| Storage Temperature | −20 to +70 °C (−4 to +158 °F) |
| Relative Humidity Range | 30 to 90 % (Non-condensing) |
System Sizing and Integration Limits
Backplane Power Calculations
Every Shark XL rack assembly requires a dedicated power supply module. Before selecting the 45C922, system engineers must sum the precise milliampere (mA) draw of all installed discrete, analog, and specialty modules across the internal chassis to ensure current demand does not exceed the module’s three output channels.
- 5 V DC Rail (1,700 mA max): Sources internal logic processing for the processor and base communication gates.
- 24 V DC Rails (500 mA / 250 mA max): Powers loop drivers, onboard relays, and base sensor inputs.
If the aggregate load exceeds these limits, power budget failure occurs, leading to intermittent diagnostic faults or total hardware shutdown. For purely 24 V DC raw input fields, the alternative 45C921 module may be considered instead.
Jumper Configuration for Line Voltage
The module comes factory-configured or fields-configured via internal hardwire jumpers to accommodate either 115 V AC or 230 V AC supply grids. Verify the jumper configuration layout against the underlying incoming panel voltage prior to energizing the module to prevent overvoltage breakdown of the input transformer and filter capacitors.
Installation and Maintenance Best Practices
- Atmospheric Hazards: The operating environment must remain clear of iron powder, conductive salinity, and corrosive chemical gases to protect exposed trace paths on the back of the motherboard.
- Fuse Inspections: Circuit protection relies on standard commercial-grade glass or ceramic fuses (typically GMA style 250 V rated). Always isolate the main panel disconnect before attempting replacement of standard fuses.
- Thermal Dissipation: Ensure adequate vertical airflow around the chassis housing. Do not block the venting louvers of the power supply housing, as thermal degradation shortens the lifespan of the internal electrolytic smoothing capacitors.
