The controller ST710-JBJA.10 was developed for simple thermostatic applications. Due to its complete equipment it can operate without any further components in many cases, e.g. cut-out relay or main switch. The controller is supplied with 230V AC and has an output relay with an Ohm maximum electric load of 12A. The controller has 4 keys. Three of them are there to controller adjustments. The fourth key activates stand-by function. 900212.005