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Phone: +86 16626708626Description
The GE 8920-PS-DC is a DC power supply module widely used in industrial automation and process control systems, particularly within Emerson and GE PAC systems such as the PAC8000 series. It provides a stable 12 V DC output at 5 A, operating from a DC input voltage range of 18.5 to 36 V. This module is designed to deliver reliable power to intrinsically safe (IS) modules, supporting the operation of field instruments and control devices in hazardous locations. Its ability to support load sharing offers enhanced redundancy, making it a dependable choice for critical industrial environments where continuous operation is paramount.
This power supply fits into protected enclosures and racks used in industrial automation control cabinets. It ensures consistent power delivery with a high efficiency of over 90%, safeguarding sensitive control electronics against voltage fluctuations and current surges. The 8920-PS-DC is engineered for use in harsh environments, with an operating temperature range from -40°C up to 70°C and built-in protections against overload, short circuit, and overvoltage conditions. Its compact dimensions (approximately 84 mm wide, 110 mm high, and 160 mm deep) facilitate easy integration into existing system layouts, while its robust mechanical design provides resistance to vibration, shock, and corrosive atmospheres.
- 8920-PS-DC
Technically, the GE 8920-PS-DC supports galvanic isolation and employs voltage clamping conforming to industrial safety standards for hazardous locations. Its screw terminal connections accommodate cables up to 2.5 mm² for secure wiring. The module’s design complies with EN and IEC certifications for intrinsic safety and electromagnetic compatibility, ensuring safe deployment in demanding industrial applications like chemical plants, oil and gas, and power generation. Additionally, it boasts a Mean Time Between Failures (MTBF) exceeding 80,000 hours at 50°C ambient temperature, confirming its longevity and reliability.
| Parameter | Value |
|---|---|
| Model | 8920-PS-DC |
| Manufacturer | General Electric (GE) / Emerson |
| Product Type | DC Power Supply Module |
| Input Voltage | 18.5 – 36 V DC |
| Output Voltage | 12 V DC ± 5% |
| Output Current | 5 A Continuous |
| Load Sharing | Supported for redundancy |
| Operating Temperature | -40°C to +70°C |
| Dimensions | 84 mm (W) x 110 mm (H) x 160 mm (D) |
| Weight | Approximately 1.29 kg |
| Connection Type | 2-part screw terminals, max cable size 2.5 mm² |
| Protection Features | Overload, short circuit, overvoltage protection |
| Certifications | EN 61010-1, EN 50020 ATEX, IEC intrinsic safety |
The 8920-PS-DC integrates well with other power and control modules within the Emerson PAC8000 and GE automation systems, providing power to intrinsically safe modules and supporting system-wide reliability.
Installation requires secure mounting in standard power module racks or enclosures, with proper electrical wiring according to manufacturer guidelines. Ensuring correct ventilation and avoiding exposure to contaminants help maximize module lifespan. Routine inspections of connections and monitoring of output stability during maintenance guard against unexpected failures.
