A20B-1005-0421 Fanuc Power Supply, Get Quote

A20B-1005-0421 – Fanuc Power Supply Unit, for 21-TB/21-MB, In Stock

Buy the Fanuc A20B-1005-0421, an open-frame power supply unit for 21-TB and 21-MB control systems, mounted directly on an I/O board (A16B-2203-0070), 24V/5V/12V DC outputs. In stock and available for fast shipping. Get a quote today.

Key Technical Specifications

  • Product Type: Power supply unit, A20B-1005 series
  • Part Number: A20B-1005-0421
  • Compatible Control Systems: FANUC 21-TB, 21-MB
  • Input Voltage: 100-240 VAC
  • Output Voltages: 24V, 5V, 12V DC
  • Design: Open-frame, PCB-mounted terminals
  • Mounting: Directly onto I/O board (compatible with A16B-2203-0070)
  • Related PCB: A350-1005-T422/03
  • Compliance: CE, UL, RoHS

Design and Performance

Direct Board-Mount Design for Simplified Integration

As an open-frame power supply unit designed to be installed directly onto an I/O board, the A20B-1005-0421 eliminates the need for a separate enclosure or bracket, simplifying integration into the compatible 21-TB/21-MB control rack.

Multiple Regulated DC Outputs from a Single Universal AC Input

Accepting a universal 100-240 VAC input and delivering regulated 24V, 5V, and 12V DC outputs, this power supply unit provides all the voltage rails typically needed by connected I/O and control circuitry from a single compact unit.

Straightforward PCB-Mounted Terminal Connections

PCB-mounted terminals provide straightforward, direct wiring connections, simplifying installation and replacement compared to units requiring separate external terminal blocks.

Genuine Fit for FANUC 21-TB/21-MB Control Systems

Purpose-matched for FANUC 21-TB and 21-MB control systems, this power supply unit ensures correct mechanical mounting and electrical compatibility with the specific I/O board architecture (A16B-2203-0070) used in these established control platforms.

Broad International Regulatory Compliance

Complying with CE, UL, and RoHS standards, the A20B-1005-0421 ensures compliance with international safety and environmental regulations, supporting deployment across regulated industrial markets worldwide.

Why Buy the A20B-1005-0421 From Us

  • In stock and ready for immediate dispatch
  • Fast shipping on every order
  • Commercial advisory support to help you confirm compatibility with your FANUC 21-TB/21-MB control system
  • Competitive pricing — get a quote in minutes

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