nVent HOFFMAN 87920846 Temperature Controls Instruction Manual
- June 13, 2024
- nVent HOFFMAN
Table of Contents
87920846 Temperature Controls
Instruction Manual Temperature Controls
87920846 Temperature Controls
WARNING
- The temperature control should only be installed by qualified technicians in accordance with the respective national electrical codes.
- The safety and protection against incidental contact is to be ensured through proper installation.
- The technical specifications (voltage and current) as stated on the product must not be exceeded!
Versions:
a. Normally closed contact (switching contact opens at rising temperature)
b. Normally open contact (switching contact closes at rising temperature)
c. Combination (combination of a) and b))
Applications:
The temperature controls are used to regulate heating equipment, cooling
equipment, filter fans and heat exchangers. In addition, they can also be used
as switching contacts for signal devices used as low− or high temperature
alarms.
Installation guidelines:
The temperature controls are designed to measure the temperature in
enclosures. When used in heating applications, they should be installed in the
upper area of the enclosure as far away as possible from heaters or other
eat−generating components. When used in cooling appl ications, they should be
installed at the bottom of the enclosure as far away as possible from the
cooling device. Clip−mounting onto 35 mm DIN rails according to EN50022 is
standard.The ventilation openings of the temperature control should not be
covered at any time.Operating temperature range: -45 °C to 80 °C (-49 °F to
176 °F)
Important: as operating conditions vary widely, safe operation of the
temperature control is to be checked in the final application.
Setting recommendations:
The hysteresis (switching difference) of the temperature control should be
taken into account:
a), b) and c): 7 K± 4 K (Kelvin) In order to determine the actual set point of
the normally closed contact, the maximum rated hysteresis should be added to
the required minimum operating temperature: Example for a):
required minimum temperature in enclosure: 5 C (41 F)
Hysteresis of temperature control: + 11 K (= 7 K ± 4 K)
Set point on adjustment knob: 16 C (61 F) 
© 2018 Hoffman Enclosures Inc.
PH 763 422 2211 • nVent.com/HOFFMAN
87920845
Documents / Resources
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nVent HOFFMAN 87920846 Temperature
Controls
[pdf] Instruction Manual
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References
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