TE Connectivity’s KISSLING 31 Series Industrial Power Relays300A bi-stable relays are designed to operate in harsh environments. The series features electronic functions for pulse protection of the coil, a low energy switching input for direct connection to an ECU, and an optional energy function for fail-safe shutoff when power is lost. The relays feature an energy function for automatic shutoff in case of loss of power for safety and reaction times in critical situations. TE Connectivity KISSLING 31 Series Industrial Power Relays are designed for battery management and power distribution applications.