Description
The A20B-3900-0053 is a 256K battery-backed SRAM module for Fanuc Series 16i/18i/21i-Model A CNC controls. It holds part programs, parameters and offset data. Important: SRAM contents are battery-backed — take a full backup of programs and parameters before replacing this module.
- Part number: A20B-3900-0053
- Series: Fanuc 16i/18i/21i-Model A
- Type: CNC SRAM memory module (battery-backed)
- Capacity: 256K
- Availability: New, used and refurbished — tested before dispatch
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Call or WhatsApp +91 88022 12394 — we ship across India and worldwide. Repair and exchange options are also available for Fanuc control units.