P.M.A STB 55 Temperature Limiter, 100 x 50mm Relay, 230 V ac Supply Voltage ON/OFF / 7364746

P.M.A Temperature ControllerThe P.M.A STB55 series temperature controller has a supply voltage rating of 230VAC. This high precision controller has a width of 50mm and a height of 100mm. If the permissible temperature limit is reached or if a fault occurs in the monitoring equipment within the permissible temperature range (sensor break or short circuit, failure of a component within the device, fault in the software, failure or impermissible value of the supply voltage, etc.) the STB 55 switches off immediately. When the alarm contact is activated, the “;ALARM”; LED flashes in the front panel and the background lighting of the display lights up and the cause of the alarm appears in the display in a plain text. In addition, a 24VDC signal for external alarm signalling is available.Features and Benefits1 SPDT relay for alarm output Basic error greater than 0,5%, ±2digits Clips onto top-hat DIN rail Convenient 4-key operation Input from Pt 100 in 3-wire connection, or dual thermocouples type J, K, N and S Memory function for error signalling Operator lock (password protection) Programmable temperature limit and switching hysteresis Response time 0,5 secondApplicationsThermal processes need to be monitored and the plant switched into a safe condition in case of a faultCertificationsEN 14597 EN 61508 SIL2 IP20 rated