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E.G.O produce a variety of limit thermostats
in various shapes, sizes and materials so that they can supply
exactly the right triple pole limit thermostat (or. Thermal Cut
Out - TCO) for every appliance. The
triple pole limit thermostat can be supplied with many different
capillary tube lengths, which makes them extremely flexible to
install. The single will detect the temperature of the medium,
while the housing can be positioned in the most suitable
location.
E.G.O triple pole limit thermostats are
manufactured using high quality stainless steel tube and are
suitable for high ambient temperatures.
Above is a typical E.G.O
Limit Thermostat, with a manual reset button - Type:
55.325series.
Above is a typical E.G.O
Limit Thermostat, with a manual reset button - Type: 55.315.series.
This single pole limit thermostat is generally used on old appliances
and is not normally offered for new applications.
With the design of this device aimed
towards greatest flexibility, E.G.O triple pole limit thermostats (TCO's)
can be delivered for every appliance. It is always strongly recommended
that this device be fitted in conjunction with a control thermostat.
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The triple pole limit thermostat can be fitted with
following features, which can differ according to the customers
application.
◊ Temperature range
◊ Capillary tube length
◊ Sensor shape
◊ Sensor dimensions
◊ Insulation sleeve length
◊ Accessories, glands, etc...
◊ Functions - Normally closed
Operation
A temperature sensor consists of a sensor,
capillary tube (0.5mm I/D), diaphragm and filler medium. The filling
medium heats up in the sensor and expands, thus increasing pressure in
the closed system. When the pressure achieves a defined level, the
diaphragm actuates the snap-action switch that either opens or closes
the electrical circuit.
The triple pole limit thermostat (TCO) have a very
short working stroke. A distance of 0.01mm at the diaphragm corresponds
to a temperature change of approximately 3 Kelvin in the oven, for
example. This requires extremely high precision production.
The New Type 55.335series
The Type: 55.335series is the latest and
most effective tripe pole limit thermostat E.G.O have produced. This
model has trip free security, which prevents tampering of the manual
reset button and also has a pressure sensitive fail safe system, which
breaks the electrical circuit if the capillary is accidentally damaged.
Note: For advise on selecting the
correct thermostat for a new or existing application, please contact our
office for technical advise.
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