GE DS2020LPPB320A | Low Pressure Power Adapter B | New Original

Description

Product Introduction

The GE DS2020LPPB320A functions as the Low Pressure Power Adapter B (LPPB) module within the Mark VIe control platform, providing high-reliability, dual-input redundant power conversion with 320 W capacity and extended temperature range for critical Mark VIe systems in harsh environments. This module accepts two independent AC (85-264 V AC) or DC (100-150 V DC) inputs and delivers 24 V DC at 13.3 A continuous (320 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), 320 (320 W output rating), A (Revision A). The primary differentiator is the combination of dual-input redundancy, higher power capacity (320 W), and extended temperature range (-40 to +70°C)—the LPPB320A delivers 13.3 A continuous with redundant inputs in environments where standard power supplies would derate or fail, making it the ideal choice for critical outdoor, offshore, and arctic installations requiring the highest availability.

Key Technical Specifications

Key Selling Points & Differentiators

• Dual-Input Redundancy with Extended Temperature: Automatic failover in <12 ms with -40 to +70°C operation—provides both redundancy and harsh-environment capability.
• Higher Power Capacity: 13.3 A continuous (320 W)—provides 10 W more capacity than the standard 310 W LPPB for demanding expansion racks with redundant inputs.
• Conformal Coating: MIL-I-46058C compliant acrylic coating—protects against moisture, salt fog, and corrosive atmospheres.
• Seamless Transfer: 8 ms transfer time with 30 ms hold-up ensures outputs remain within regulation during source transitions.
• 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.
• Gold-Plated Terminals: Corrosion-resistant terminals for reliable connections in harsh environments.
• Full Live Test Certification: Each unit undergoes a 72-hour burn-in with temperature cycling (-40 to +70°C, five cycles), full load testing (13.3 A), input transfer testing (20 cycles), and protection circuit validation. We log the MAC ID, output calibration data, transfer time, and temperature cycling data for traceability.
• Direct Drop-In Replacement: Form-fit-function compatible with DS2020LPPB320 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 temperature/coating specifications are not met.

Frequently Asked Questions (FAQ)

Q1: What’s the difference between the DS2020LPPB320A and the DS2020LPPB310A?

The LPPB320A provides 320 W (13.3 A) with extended temperature range (-40 to +70°C) and conformal coating, while the LPPB310A provides 310 W (12.9 A) at standard temperature (-25 to +60°C) without conformal coating. Both modules have dual-input redundancy. Choose the LPPB320A for harsh environments requiring both redundancy and extreme temperature operation. Choose the LPPB310A for standard indoor applications with redundant power.

Q2: What’s the difference between the DS2020LPPB320A and the DS2020LPPA340A?

The LPPB320A has dual-input redundancy with automatic failover, while the LPPA340A has a single input. The LPPB320A is designed for critical applications requiring redundant power sources—if one input fails, the module automatically switches to the other within 8 ms. The LPPA340A requires an external transfer switch or UPS if redundancy is needed. The LPPA340A has slightly higher power capacity (340 W vs. 320 W) and enhanced diagnostics. Choose LPPB320A for redundancy in harsh environments. Choose LPPA340A for higher capacity in single-input harsh environments.

Q3: Does the LPPB320A require forced air cooling at full load in high temperatures?

At 320 W output, the module generates approximately 40 W of heat (87% efficiency). At ambient temperatures up to 60°C, natural convection is typically sufficient with adequate cabinet airflow (at least 20 CFM). At 70°C ambient, we recommend forced air cooling (minimum 40 CFM across the module). The module includes a thermal sensor that will trigger a warning if the internal temperature exceeds 85°C and derate the output if temperature exceeds 95°C. For high-temperature environments, we strongly recommend forced air cooling to maintain full 13.3 A output.

Q4: Can I connect one AC source and one DC source to the LPPB320A?

Yes. The LPPB320A 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.

Q5: Does the conformal coating affect the module’s repairability?

Yes. The conformal coating is essentially permanent. Attempting to remove it for component-level repair usually damages the PCB. We don’t offer repair services for coated modules—they’re replacement-only. If a unit fails under warranty, we cross-ship a replacement. Out of warranty, we recommend purchasing a new unit. For offshore and remote installations with redundant power requirements, we typically advise customers to stock one spare LPPB320A per site.

Q6: Can I use the LPPB320A 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 LPPB320A accepts input voltages from 85-264 V AC at 47-63 Hz. If the generator output is severely distorted (THD > 15%), the module may interpret the distortion as a fault and fail to transfer. We recommend using a line conditioner or ensuring the generator is properly regulated.

Q7: What’s the typical lead time for the LPPB320A, and do you recommend stocking spares?

The LPPB320A is a specialized, lower-volume module—we maintain 3-5 units in inventory. Standard lead time for orders of 1-3 units is 3-5 weeks due to the specialized extended-temperature component sourcing, conformal coating, dual-input testing, and 72-hour thermal cycling validation. For critical turbines requiring redundant power in harsh environments, we strongly recommend stocking one spare module per site. If you have a fleet of 5+ turbines, a 20% spare ratio is standard practice. If you need immediate delivery and the LPPB320A is out of stock, consider the LPPB310A (standard temperature) as a temporary substitute—it provides the same redundancy but lacks the extended temperature range. Call our support line for expedited options.

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