1SDA066619R1

The ABB RHL XT1..XT4 KEY LOCK RONIS EQ. FEL. B (P/N: 1SDA066619R1) is a Ronis key lock accessory with an equal fellow B key type, designed to secure the open position of rotary handle operating mechanisms and front panels across multiple SACE Tmax XT1 through XT4 circuit breakers, compliant with IEC60947-2 and UL489 standards in a lightweight 0.1 kg package.