GE 8421-CC-PS

The GE 8421-CC-PS is a power supply module under the General Electric (GE) Bently Nevada 3500 Series, specifically designed for industrial machinery protection systems. It is suitable for monitoring and controlling critical equipment such as gas turbines, steam turbines, and compressors. This module provides stable and isolated DC power to the Bently Nevada 3500 Rack, ensuring the reliable operation of monitoring modules for vibration, temperature, displacement, and more. It serves as a core guarantee for the high availability of the 3500 system.

Product Specifications

• Product Model: 8421-CC-PS
• Manufacturer: General Electric (GE) / Bently Nevada
• Product Type: Power Supply Module
• Input Voltage: 120/240V AC (±10%), 50/60Hz (switchable)
• Output Voltage: +5V DC, ±15V DC (multiple isolated outputs)
• Output Power: 60W (total continuous power)
• Load Regulation: ±1% (full load to no load)
• Isolation Voltage: 1500V AC (input to output)
• Protection Functions: Overcurrent protection (self-recovering), overvoltage protection (latching)
• Operating Temperature Range: -30°C to +65°C (-22°F to +149°F)
• Protection Class: IP20 (must be installed in a control cabinet)
• Installation Method: Insert into the 3500 Rack, occupying 1 slot
• Status Indication: LED displays input/output power status and faults
• Certification Standards: UL 508, CSA C22.2 No. 14, IEC 61010-1

Structure and Composition

• Input Filter Circuit: EMI filter to suppress power grid surges and high-frequency noise.
• Rectification and PWM Control: High-frequency switching topology (e.g., flyback type) to improve conversion efficiency (≥85%).
• Multiple Output Isolation: Independent transformer windings to generate +5V (for digital circuits) and ±15V (for analog circuits) power supplies.
• Monitoring and Protection Circuit: Voltage/current sampling chips to feed back status to the 3500 Frame Interface Module (e.g., 3500/15) in real time.
• Heat Dissipation Management: Aluminum substrate + thermal grease, dissipating heat through the rack backplane.
• Connectors: Backplane interface for power supply and status signal transmission.

Key Features and Advantages

1. High-Reliability Power Output
   • Multiple isolated outputs to avoid mutual interference between digital and analog circuits.
   • ±1% load regulation to ensure voltage stability (even in case of sudden load changes).
2. Intelligent Monitoring and Protection
   • Overcurrent protection (self-recovering) and overvoltage protection (latching, manual reset required).
   • Real-time fault reporting (e.g., +5V failure) via LEDs and backplane signals.
3. Seamless 3500 System Integration
   • Natively compatible with the Bently Nevada 3500 Rack (e.g., 3500/15 Frame Interface Module), supporting plug-and-play.
   • Hot-swap support (when allowed by the system), eliminating the need for shutdown during maintenance.
4. Industrial-Grade Durability
   • Wide operating temperature range of -30°C to +65°C, adapting to the environment of gas turbine control cabinets.
   • Compliance with the UL 508 industrial power supply standard.

Application Fields

• Power Generation Industry: Core power supply for the Bently Nevada 3500 monitoring system of gas turbines/steam turbines.
• Oil and Gas Industry: Backup power unit for vibration monitoring systems in compressor stations.
• Industrial Drives: Power supply module for large motor protection systems.

Installation and Maintenance

Installation Points

• Operate under power-off conditions (or confirm the system supports hot-swap).
• Check the input voltage setting (select 120V/240V AC via jumpers).
• Ensure the rack backplane slot is clean and free of corrosion.

Maintenance Recommendations

• Measure the output voltage ripple annually (should be ≤50mV p-p).
• Regularly check if the heat dissipation air duct (if any) is blocked.

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If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
• Whatsapp/Mobile:+86 15359273791

Global renowned brand cooperation

ABB 丨 GE 丨Allen Bradley  丨  Honeywell 丨   Emerson  丨  Bently Nevada   丨 Westinghouse  

Triconex  丨   Foxboro 丨   ICS Triplex  丨  Hima  丨  Schneider 丨  Yokogawa  丨 Woodward

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What Makes Us Your Trusted Partner?

Global-Class Inventory Readiness

1. We hold one of the industry’s most comprehensive inventories of automation spares, covering PLCs, DCS, drives, HMIs, and more. No matter your equipment’s brand or age, we ensure quick access to the parts you need – no long waits.

Engineer-Led Technical Support

1. Our team isn’t just sales-focused – it’s made up of engineers with hands-on experience in industrial control systems. From troubleshooting hardware malfunctions to guiding software upgrades, we provide actionable, on-site-level support remotely.

Needs-Driven Custom Services

1. We don’t just supply parts – we solve problems. Beyond standard spares, we offer customized services like old equipment repair, system retrofitting (to extend equipment lifespan), and on-site technical training for your team.

Global Reach, Local Response

1. Our worldwide service network means we can coordinate sourcing and delivery from regional hubs, cutting down lead times. Wherever your facility is, you get the same fast, reliable service as local suppliers.

Obsolete Parts Specialists

1. For discontinued or end-of-life components – a pain point for many factories – we have dedicated sourcing channels. We track hard-to-find parts globally, ensuring your legacy systems keep running.

Service That Puts You First

1. Every interaction is guided by one goal: your operational efficiency. We prioritize transparency (no hidden costs), on-time delivery, and post-sales follow-up – making sure your needs are met at every step.