never failing ESTI-principle |
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The releasing element auf all ESTI Excess Temperature Protectors is the ESTI cartridge. This is a small spherical glass bulb, filled with a chemically inactive and insulating fluid. Whenever the cartridge is heated the fluid contained in it expands. As soon as a predetermined critical temperature is reached the ESTI cartridge bursts with absolute certainty, due to the excess internal pressure. |
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(c) Esti Apparatebau GmbH, Berlin - Alle Rechte vorbehalten |