Name: FANUC A20B-1005-0421 CNC Power Supply PCB
Brand: FANUC
Price: 132.0 USD
Availability: InStock

FANUC A20B-1005-0421 CNC Power Supply PCB

En existencias

• Testing Video Provided

$132.00 USD

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FANUC A20B-1005-0421 is a control-unit power supply printed circuit board used in compatible FANUC CNC hardware. FANUC Series 0i Model A maintenance documentation lists this PCB as the power supply board for the control-unit assembly.

The documented complete power-supply ordering number is A20B-0279-H100, while A20B-1005-0421 is the identification printed on the PCB itself. Some market listings call it an FS20/F0i power supply, but replacement should be based primarily on the actual PCB number and original control configuration.

A20B-1005-0421 Product Information

Brand	FANUC
Model / MPN	A20B-1005-0421
Product Type	CNC control-unit power supply PCB
Documented CNC Series	FANUC Series 0i Model A; selected 0i-TA and 0i-MA configurations
Complete Supply Order Code	A20B-0279-H100
Control-Unit DC Input	24VDC through CP1A in documented configuration
Monitor DC Output	24VDC through CP1B for the CRT monitor in documented configuration
Condition	New, refurbished, or used 90% new; subject to stock
Testing	100% tested before shipping; test video available
Handling	Normally 1–2 business days
Shipping / ETA	DHL, UPS, or FedEx worldwide; typically 3–7 business days
Warranty	1 year for new/refurbished; 3 months for used 90% new
Service / Packing	Free technical support; anti-static reinforced packing

Control-Unit Power Distribution

The A20B-1005-0421 supports the regulated power requirements of the associated CNC control hardware. In the documented 0i-A arrangement, CP1A provides the 24VDC control-unit input and CP1B supplies a 24VDC output for the CRT monitor. Internal distribution and connector use depend on the complete FANUC assembly.

PCB Number vs. Complete Power-Supply Code

A20B-1005-0421 identifies the power supply PCB, while A20B-0279-H100 identifies the documented complete supply ordering assembly. The two numbers describe related but different identification levels. Confirm whether the quotation includes only the board or the complete mounting assembly.

Compatibility and Installation Checks

Confirm the full PCB number, revision, control model, mounting points, connectors, fuse and surrounding assembly against the original part. Do not substitute another A20B-1005 power board based only on appearance. Disconnect the CNC supply and allow stored energy to discharge before installation.

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