- Control logic for selecting between the alternative power sources.
- Normal, emergency, and/or load circuit breakers.
- Protective relaying (as required).
- Optional instrument meters for normal, emergency, or load for local monitoring.
- Designs are based on NEMA and UL 891 standards.
- Optional engine start control logic and/or load control logic.
- Available up through 4000 amperes using ASCO 7000 series automatic transfer switches. 7ATS, 7ATB, 7ACTS and 7ACTB.