✅ ABB PLL Padlock Locking Device – Fixed Type – XT2/XT4 – (Part No.: 1SDA066590R1) The ABB PLL Locking Device (1SDA066590R1) is a mechanical accessory designed to enable the use of padlocks for safety lockout of XT2 and XT4 molded case circuit breakers. It fixes the breaker handle in the OFF position, preventing unauthorized or accidental re-energizing. This is especially important during maintenance operations or safety lockout-tagout (LOTO) procedures. The device is robust, easy to install, and compatible with standard industrial padlocks, providing a practical physical interlock for safety compliance. Technical Specifications: Part Number: 1SDA066590R1 Model: PLL – Padlock Locking Device Locking Type: Fixed lock in open (OFF) position Compatibility: XT2 / XT4 MCCBs Function: Safety interlock using padlocks Mounting: On breaker front cover Application: Maintenance isolation, safety lockout