The 51012498 is a DIN rail mount, plug-in thermal circuit breaker designed for overcurrent protection. It is rated for a current of 3.0 A with voltage ratings of 250V AC and 65V DC. This device features an integrated on-off switch and is switching duty rated. Key performance characteristics include an interrupting capacity of 2,000 A at 250V AC and 200 A at 65V DC, and an operational life of 3,000 operations under low-resistive loads. Designed for reliability, it operates in temperatures from -20°C to +60°C and is suitable for protecting power distribution systems, automation equipment, and process control applications.