It has double-break contacts to help improve safety. Auxiliary contact modules snap onto either side for fast expansion. The combination of quick-connect terminals and binder head screws along with the industry-standard mounting help provide easy wiring and installation. A Type-1 enclosure and DIN rail-mounting bracket (sold separately) may help reduce installation costs. 30A (inductive) and 40A (resistive). 600V max. Mechanical life is approximately 500,000 operations. Suitable for heating, air conditioning, and refrigeration applications.