U20549 Used Astron SS-50M-AP Adjustable 13.8VDC 50 Amp Switching Power Supply

U20549 Used Astron SS-50M-AP Adjustable 13.8VDC 50 Amp Switching Power Supply

This pre-owned Astron SS-50M-AP switching power supply is in great condition, showing no cosmetic or mechanical issues across the chassis or front panel. The matte black cabinet finish is clean, with crisp factory labeling, an illuminated red power rocker switch, dual front-facing USB charging ports, and dual front Anderson Powerpole output connectors that are tight and undamaged. The red digital LED meter illuminates brightly and displays voltage and load current with sharp clarity. On the rear panel, the heavy-duty high-current primary output bus terminals (V1), internal cooling exhaust fan with wire finger guard, and grounded IEC AC power receptacle are clean and pristine. It comes complete with a heavy-duty 3-prong AC power cord and the printed Astron instruction sheet.

The Astron SS-50M-AP is a compact, high-current switching DC power supply engineered specifically for demanding amateur radio, commercial two-way communications, and high-power benchtop gear. Delivering 40 Amps continuous and up to 50 Amps surge/peak duty at 13.8 VDC, it is built with specialized RF filtering and heavy-gauge shielding to suppress switching noise and hash across the HF, VHF, and UHF bands. The AP-series front faceplate features an integrated dual digital voltmeter and ammeter, dual USB Type-A accessory charging jacks (5.2V @ 3.0A total), and front-mounted Anderson Powerpole jacks for convenient grab-and-go DC power connection. Designed for world-class reliability, it incorporates a thermostatically controlled variable-speed cooling fan, electronic current limiting, over-voltage crowbar protection, and thermal shutdown circuitry.

Condition

• Cosmetic Condition: Great condition throughout with no notable blemishes, scratches, or wear on the metal enclosure.

• Front Panel & Display: The dual red LED digital readout is crisp and bright. The illuminated main power switch, dual USB jacks, and front Anderson Powerpole terminals are clean and solid.

• Rear Hardware & Fan: Rear high-power DC binding block terminals (V1) are clean with undamaged set-screw threads. The cooling fan and wire guard are clean and dust-free.

• Accessories & Documentation: Includes a grounded AC mains power cord and the original printed Astron operating documentation.

Key Features

• High-Current 50A Peak Output: Provides 40 Amps continuous output and up to 50 Amps intermittent surge duty at 13.8 VDC.

• RF Noise Immunity: Advanced internal filtering engineered to eliminate EMI/RFI noise across amateur HF, VHF, and UHF bands.

• Dual Digital LED Metering: Front-panel digital display provides continuous simultaneous monitoring of DC output voltage and load amperage.

• Front Anderson Powerpole Connectors: Integrated dual Powerpole jacks (V2) provide fast, convenient low-profile DC connections directly on the front panel.

• Dual Front USB Charging Ports: Powers and charges tablets, smartphones, and USB station accessories with up to 3.0A continuous output (+5.2V).

• Rear Heavy-Duty High-Current Terminals: Primary rear DC block (V1) accommodates heavy gauge cables for transceivers and high-draw linear amplifiers.

• Comprehensive Circuit Protection: Equipped with over-temperature protection, foldback current limiting, and over-voltage shutdown.

• Thermostatically Controlled Fan: Quiet rear fan activates proportionally to dissipate thermal load under sustained high-current duty.

What's Included

• Astron SS-50M-AP 50A Switching Power Supply

• Standard 3-Prong Grounded AC Mains Power Cord

• Astron Switching Power Supply Printed Instruction Manual

Comes With Our 90-Day Warranty!

Serial Number: 2025010021

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