OHD1-90M

Series:	OHD™ Thermal Guard
Part Status:	Active
Circuit:	SPST-NO
Switching Temperature:	194°F (90°C)
Reset Temperature:	--
Current Rating - AC:	0.3A (110V)
Current Rating - DC:	0.3A (110V)
Tolerance:	--
Switching Cycles:	--
Termination Style:	PC Pins
Mounting Type:	Through Hole
Package / Case:	Axial

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The OHD1-90M is a popular mechanical thermostat, designed to sense and control temperature in a wide range of applications. It is an important component in maintaining environmental conditions in industrial, residential, commercial and medical settings. In this article, we will discuss its application field and working principle.

Application Field

The OHD1-90M can be used in a wide variety of applications as a control and protection device. It is suitable for controlling temperature in HVAC (Heating, Ventilation & Air Conditioning) systems, refrigeration systems, water heating systems, cooling and hot water systems, freezers, and ovens. Additionally, the thermostat is also used as over-temperature protection in air conditioners, power transformers, electric motors, and other equipment with a temperature range between 0 and 90ºC (32 and 194ºF).

Working Principle

The OHD1-90M’s operating principle is based on thermal expansion. It is composed of a bimetallic temperature sensing element that expands when heated and contracts when cooled. The expansion and contraction of the bimetallic element causes an inner component, called a damper, to move when it senses a change in temperature. When the temperature is greater than the set point of the thermostat, the damper moves in a direction that eventually closes the contact system, thus cutting off the power supply to the connected device. When the temperature falls below the set point, the damper opens the contacts and power is restored.

Conclusion

The OHD1-90M mechanical thermostat is an effective and reliable device for measuring and controlling temperature in a wide variety of applications. Its operating principle is based on thermal expansion and the movement of a damper in response to temperature changes. The thermostat is suitable for controlling temperatures in HVAC systems, refrigeration systems, water heating systems, cooling and hot water systems, freezers, ovens, and other equipment with temperature ranges from 0 to 90ºC (32 to 194ºF).

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description