Sensata Technologies offers two switchable thermal circuit breakers for the truck, bus, specialty vehicle, electric vehicle, and marine markets. The rugged, ignition-protected, weatherproof SDLS series is available from 35 to 150 A at 30 V dc and offers improved mounting and a trip-free design. The series meets 5000 A at 12 V dc for interrupt capacity. The FDLS series is similar but is available in a surface mount version with a switchable manual reset. The FDLS is weatherproof, ignition protected, and also offers the Klixon trip-free design. In addition, the FDLS offers a stronger housing material for increased robustness and the ability to accommodate heavy-gauge wire lugs across terminal studs.