ASCO 300 series automatic transfer switches (ATS) comply with UL 1008 standards for ATS. ASCO 300 series automatic transfer switches also comply with CSA C22.2 Section 178 standards for automatic transfer switches. All control functions are UL approved components to ensure that ASCO automatic transfer switches comply with OSHA safety requirements and are accepted by electrical inspectors. ASCO 300 series automatic transfer switches are suitable for emergency and standby power systems. They comply with NEC Article 700 and UL 1008 standards for emergency systems. They are also suitable for NEC Article 517 – Health Care Facilities, NEC Article 701 – Legally Required Standby Systems, NEC Article 702 – Optional Standby Systems, NFPA 99 Health Care Facilities, and NFPA 110 Emergency and Standby Power Systems.