Title: Hardware Installation Guide.pdf
2. FINISH: CLEAN AND DEBUR. SAND TO BREAK ALL EDGES. BRUSH FINISH TOP/SIDE SURFACES (200 GRIT). GRAIN VERTICAL.1. MATERIAL: STAINLESS STEEL, TYPE 304-2B, 18GANOTES: UNLESS OTHERWISE SPECIFIEDRelay Contact ProtectionThe relays used by OnGuard hardware products have a contact life in excess of 500,000 operations at full rating. Lighter loads, and appropriate contact protection, extend relay life.revision 6 — 41Hardware Installation Guidelines2.8.1DC Inductive LoadContacts for DC inductive loads can be effectively protected using clamp diodes. Select diodes with reverse breakdown voltage 10 times the circuit voltage.2.8.2AC Inductive LoadsContacts for AC inductive loads can be protected using metal-oxide varistors (MOVs.) MOVs are effective when the load voltage is 100V to 200V. (MOVs are also suitable for DC operation.)