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Trumeter 7954 and 7957 Multi function Programmable DIN Rail Time Relay Trumeter 7957, The Trumeter 7957 is a multi function digital time relay, offering 18 operating modes which can be easily configured on the 3 digit LCD display. The 7957 features a wide timing range of 0.1 second to 999 hours to suit all applications with a clear indication of the changeover relay status via the front panel LCD.The 7957 comes in a compact 17.5mm DIN Rail mountable case and can accept a wide range of operating voltages for most installations. In addition, the 7957 is tamper proof due to the key lock feature, meaning 100% reliable operation. Trumeter 7957 Multi Function Digital Timer 18 Functions 1 CO 24 240VACDC
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