This Siemens 3WL1340-4CB66-5FM2-Z , CIRCUIT BREAKER ,3P/ 4000A/ 690V is a circuit protection device manufactured by Siemens. It safeguards wiring and connected equipment by opening or isolating the circuit when current exceeds its rated threshold. Key specifications noted on this listing include 4000A. It is commonly in power distribution panels and industrial control circuits.
