Te connectivity sr6 series safety relays pcb mounting te connectivity 8 1415537 0 an 8a 24v dc 6 pole pcb mounting safety relay with a 4pst no 2pst nc contact configuration the relay has forcibly guided contacts and is suitable for a range of applications including emergency stop controls pressing machinery elevator and escalator controls security modules etc te connectivity sr6b6k24 4pst no 2pst nc pcb relay 24vdc 8a