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FANUC A20B-2100-0761 alpha i power supply control PCB main view
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• Testing Video Provided

$496.00 USD
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The FANUC A20B-2100-0761 is a control PCB for selected FANUC αi common power supply modules. FANUC assigns it to the 200V PSM-26i through PSM-55i range and 400V PSM-30HVi through PSM-75HVi range.

This is an internal PCB, not a complete power supply. Confirm its label, revision, host A06B number, connectors and original board before ordering.

A20B-2100-0761 Product Information

Brand FANUC
Model / MPN A20B-2100-0761
Board Type Power supply module control PCB
Series FANUC αi-series common power supply
200V Host Models PSM-26i, PSM-30i, PSM-37i and PSM-55i
200V Module Numbers A06B-6110-H026, -H030, -H037 and -H055
400V Host Models PSM-30HVi, PSM-45HVi and PSM-75HVi
400V Module Numbers A06B-6120-H030, -H045 and -H075
Host Main Input 200–240VAC or 400–480VAC, depending on module
Host Control Power Single-phase 200–240VAC, 50/60Hz
Regeneration Type Power-source regenerative control
Documented Fuses FU1 5A and FU2 2A
Later Specification A20B-2100-0391; verify replacement requirements
Condition New, refurbished, or used 90% new; subject to stock
Testing 100% tested before shipping; test video available
Handling Normally 1–3 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

αi Power Supply Control Function

Installed in the PSM, the A20B-2100-0761 provides control and monitoring circuitry for the common power supply and regenerative operation. Electrical ratings belong to the complete A06B module, not to the bare PCB as a standalone device.

Old and Later Board Specifications

Later FANUC documentation lists A20B-2100-0391 as the current specification and A20B-2100-0761 as the old specification for corresponding A06B-6110 and A06B-6120 modules. Confirm the complete module number, PCB revision and service documentation before substitution. Do not confuse it with A20B-2100-0760 for smaller PSM models or A20B-2100-0390 for different configurations.

Testing and Installation Notes

REACO CNC checks the label, revision, fuses, connectors, solder condition, control power, status display, alarms and startup as applicable. Qualified personnel should isolate power and wait for the DC link to discharge before service.

Related resources: FANUC PCBs, FANUC CNC controls and FANUC CNC repair services.

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