APW12 14V-17V b Power Supply Unit APW121417b for Antminer L7 S19j

APW12 14V-17V Power Supply (APW121417b) – Brand New PSU for Antminer L7, D7 & S19j

The APW121417b is a brand-new Bitmain APW12 power supply delivering 14–17V / 182A on its primary channel (220V input), with a secondary 12.3V / 18A output for the control board. It is the factory-specified PSU for the Antminer L7, D7, S19j, S19JL and S19L. Input range is 200–240VAC, power factor exceeds 0.99 at full load, and ripple stays below 1% on both channels. Force-air cooling at 45dBA — notably quieter than the APW9 series.

Why a High Quality APW12 Matters

The L7 and S19j are high-value miners sensitive to power quality — voltage ripple or sag under load destabilises the hashboard regulators and causes chip errors. The APW121417b includes overcurrent protection (260–340A), short-circuit protection, overheat shutdown and low-voltage input cutoff, protecting both PSU and miner. Using a high quality PSU ensures correct voltage regulation, connector compatibility and protection thresholds matching the firmware's expectations.

Installation

Disconnect mains and remove the old PSU. Mount the APW121417b and connect the primary harness to the hashboard power bus, secondary output to the control board. Connect AC input (200–240V required). Power on and verify correct voltages and stable hash rate in the dashboard. Ensure intake and exhaust vents are clear for the force-air cooling system.

APW121417b Power Supply Specifications

Related APW12 Power Supplies & Accessories

• APW121417a PSU – Antminer L7 / S19j
• APW12 PSU Test Fixture – Power Supply Repair
• 6-Pin PSU Cable 18AWG – Bitmain Antminer
• Antminer Hydro PSU Cable – APW11 Power Supply

Replacing PSUs across an L7/S19j fleet? Contact us at contact@lys-sz.com for volume pricing and fast dispatch.

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