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If a problem occurs, you need to be certain that products will be available as quickly as possible right where they’re needed. This is one of our distributors’ core competencies: short delivery times and fast availability of Siemens products.
Selectivity and fast fault location in 24-V DC load circuits. The new SITOP selectivity modules SEL1200 and SEL1400 are the optimal extension for all 24-V DC power supplies. They distribute and monitor the load current over several current circuits. But what is the difference between the two selectivity modules?