DS2020LPPB310A | GE Mark VIe LPPB Module | In Stock

Description

Product Introduction

The GE DS2020LPPB310A functions as the Low Pressure Power Adapter B (LPPB) module within the Mark VIe control platform, providing high-reliability, dual-input redundant power conversion for critical Mark VIe systems. This module accepts two independent AC (85-264 V AC) or DC (100-150 V DC) inputs and delivers 24 V DC at 12.9 A continuous (310 W), with four isolated output channels for distributing power to I/O modules, controllers, and field devices. The dual-input design with automatic failover ensures continuous operation even if one input source fails.

The model number breaks down as: LPPB (Low Pressure Power Adapter B – Redundant Input), 310 (310 W output rating), A (Revision A). The primary differentiator is the dual-input redundancy with automatic transfer switching—the LPPB310A monitors both power sources and seamlessly switches to the backup source within 8 ms if the primary fails, preventing I/O module resets and communication faults. This module is the ideal choice for critical turbines requiring high availability and redundant power infrastructure.

Key Technical Specifications

Key Selling Points & Differentiators

• Dual-Input Redundancy with Automatic Failover: Accepts two independent AC or DC power sources with automatic failover in <12 ms—prevents I/O module resets and communication faults during power source loss or degradation.
• Seamless Switchover: Transfer time of 8 ms typical ensures the outputs remain within regulation during source transitions—no interruption to connected I/O modules or communication.
• Flexible Input Configuration: Supports any combination of AC (85-264 V) and DC (100-150 V) inputs—connect to mains AC and backup battery system, two independent AC feeds, or dual DC sources. Jumper-selectable per input.
• High Power Capacity: 12.9 A continuous (310 W)—powers full Mark VIe racks with redundant input protection.
• Four Isolated Output Channels: Each 24 V output is independently isolated and protected—prevents fault propagation between loads.
• ISBus Monitoring: Reports source status, input voltage per source, transfer events, and output current per channel to the Mark VIe controller.
• Full Live Test Certification: Each unit undergoes a 36-hour burn-in with full load testing, input transfer testing (10 cycles), and protection circuit validation. We log the MAC ID, output calibration data, and transfer time for traceability.
• Direct Drop-In Replacement: Form-fit-function compatible with DS2020LPPB310 and earlier LPPB revisions. Existing wiring and terminal assignments remain unchanged.
• 90-Day Warranty: Includes technical support and cross-ship replacement within 24 hours if the module fails to provide regulated output, automatic transfer fails, protection circuits fail to operate, or diagnostics report incorrect data.

Frequently Asked Questions (FAQ)

Q1: What’s the difference between the DS2020LPPB310A and the DS2020LPPA300A?

The LPPB310A has dual-input redundancy with automatic failover, while the LPPA300A has a single input. The LPPB310A is designed for critical applications requiring redundant power sources—if one input fails, the module automatically switches to the other within 8 ms. The LPPA300A requires an external transfer switch or UPS if redundancy is needed. The LPPB310A also has slightly higher capacity (310 W vs. 300 W) and includes additional monitoring for both input sources.

Q2: Can I connect one AC source and one DC source to the LPPB310A?

Yes. The LPPB310A accepts any combination of AC (85-264 V AC) and DC (100-150 V DC) inputs. Each input has its own selector jumper (AC/DC). For example, you could connect input 1 to AC mains and input 2 to a 125 V DC battery system. The module automatically selects the primary input (jumper-selectable) and switches to the secondary if the primary fails. If both sources are available, the module uses the primary source.

Q3: What happens during the 8 ms transfer time—do the I/O modules lose power?

No, the outputs remain within regulation during the transfer. The module has sufficient hold-up capacitance (25 ms) to maintain the 24 V output during the transfer time. The I/O modules see no voltage dip—they continue operating normally. However, there may be a brief interruption in the ISBus communication from the LPPB itself during the source selection reporting. The I/O modules and controller will not see any interruption because the output power remains steady.

Q4: The transfer event counter shows 3 events in the first month—is that normal?

In industrial plants with utility power fluctuations, 3 transfer events in a month is not unusual. The LPPB310A is doing its job—keeping the rack powered when the primary source has issues. However, if the counter increments frequently (more than 10 per month), you should investigate the primary source. Possible causes include: undersized wiring causing voltage sags, loose connections, utility power quality issues, or an overloaded circuit. The LPPB310A can also report input voltage quality data via ISBus, which can help diagnose the root cause.

Q5: Can I use the LPPB310A with a generator as the secondary source?

Yes, but you need to consider the generator’s power quality. Generators can have frequency deviations and voltage distortion during startup and load changes. The LPPB310A accepts input voltages from 85-264 V AC at 47-63 Hz, which covers most generator outputs. However, if the generator output is severely distorted (THD > 15%), the LPPB310A may interpret the distortion as a fault and fail to transfer. We recommend using a line conditioner between the generator and the LPPB310A in such cases.

Q6: Does the LPPB310A support hot-swapping or replacing a failed input power source while the module is operating?

Yes, but with caution. The module will continue operating on the secondary source while you restore the primary source. When you reconnect the primary source (within specification), the module will automatically revert to the primary source (jumper-selectable) after a 2-second validation period to ensure the restored source is stable. You can also manually force a transfer by cycling power to the primary source.

Q7: What’s the typical lead time for the LPPB310A, and do you recommend stocking spares?

The LPPB310A is a moderately stocked module—we maintain 5-8 units in inventory. Standard lead time for orders of 1-5 units is 1-2 weeks due to the specialized dual-input testing and transfer validation. For critical turbines requiring redundant power, we recommend stocking one spare module per site. If you have a fleet of 10+ turbines, a 10% spare ratio is standard practice. If you need immediate delivery and the LPPB310A is out of stock, consider using two LPPA300A modules with an external transfer switch—this provides redundancy but requires additional cabinet space and wiring. Call our support line for expedited options.

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