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Eaton PXPS-1 Power Module
Eaton PXPS-1
The PXPS‑1 is a standardized power supply module developed by Eaton for power distribution monitoring systems (such as the Power Xpert Meter). Featuring a wide input voltage range and a highly reliable design, it delivers stable DC power to meters, communication devices, and control equipment. Compact in size and easy to install, this power supply is ideal for power distribution monitoring scenarios in industrial facilities, commercial buildings, and construction sites.
Key Technical Specifications
- Input Voltage: 100 - 240 VAC ± 20 %, Frequency 47 - 63 Hz
- DC Input: 110 - 250 VDC ± 20 % (optional)
- Maximum Power Consumption: 50 W (rated)
- Minimum Ride‑through Time: 0.5 seconds (maintains power supply during voltage sags)
- TVS Protection: Neutral (-) terminal grounded TVS ≈ 575 V, protecting against transient overvoltage
- Dimensions & Weight: Typical module dimensions approx. 130 mm × 280 mm × 11 mm, weight approx. 0.5 kg
- Operating Temperature: 0 °C - 60 °C; Storage Temperature: -20 °C - 80 °C
- Relative Humidity: 5 % - 95 % (non‑condensing)
Product Features
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Wide Input RangeThe primary side accepts direct connection to 100‑240 VAC, compatible with power grids worldwide. This eliminates the need for on‑site transformers or additional rectification devices.
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High ReliabilityBuilt‑in Transient Voltage Suppressor (TVS) diodes and a minimum 0.5‑second ride‑through time ensure uninterrupted operation of meters during grid fluctuations.
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Low Power ConsumptionWith a rated power of only 50 W, it is perfectly suited for energy‑sensitive power distribution monitoring systems.
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Modular DesignAdopting standardized DIN rail mounting, it enables quick replacement and hassle‑free maintenance.
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Strong Environmental AdaptabilityIts wide operating temperature and humidity range meet the stringent environmental requirements of industrial field applications.
Structure and Components
- Enclosure: Metal or high‑strength plastic housing with heat sinks for protection and heat dissipation.
- Input Terminals: 4‑position detachable terminal block, compatible with 12 - 18 AWG cables and equipped with protective sleeves.
- Rectification/Regulation Module: Internal high‑efficiency rectifier bridge and voltage stabilization circuit convert AC power to stable DC output.
- Protection Circuitry: Includes TVS transient suppression, overvoltage/undervoltage protection, and short‑circuit protection.
- Output Terminals: Provides 24 VDC (or 48 VDC) output for powering meters or controllers.
Typical Application Areas
- Power distribution monitoring meters (Power Xpert Meter, Power Xpert Energy Meter)
- Building automation controllers (BMS, PLC)
- Communication base station power supply (low‑power front‑end equipment)
- Industrial field sensors and meters (current, voltage, power monitoring)
- Energy management systems (microgrid, photovoltaic inverter monitoring)
Installation and Maintenance Guidelines
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Installation LocationInstall in a well‑ventilated, dust‑free, and dry cabinet or distribution box. Ensure that the heat sinks are not blocked.
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WiringUse copper core cables that meet specifications (12‑18 AWG) and ensure secure terminal connections. The input terminal grounding wire must be reliably grounded.
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InspectionBefore initial power‑on, check the input voltage range, wiring polarity, and correct grounding of the TVS.
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Regular MaintenanceInspect terminal tightness and heat sink dust accumulation every 12 months. Immediately shut down the unit for inspection if abnormal noise or temperature rise is detected.
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ReplacementThe modular design supports hot swapping. For replacement, first cut off the power supply, remove the old module, and then slide the new module onto the DIN rail until it clicks into place.
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