UTP28SP21RD

UTP28SP21RD is a high temperature extremely compact ultra-thinness power relay widely applied in automotive industrial control and automation system, motor control and household appliances etc. This article will focus on UTP28SP21RD application field and working principle.

The UTP28SP21RD is a high performance relay made by plastic-sealed package with extremely compact size, these compact size and ultra-thin size enables it to be widely applied in many application field, such as automotive, industrial control, automation system, motor control, household appliances etc. It can provide users with excellent features including low power loss, high working temperature, excellent heat dissipation, high dielectric strength, and excellent anti-vibration performance.

The UTP28SP21RD series has two types: A type for high-current and B type for low current, and the Rated Current is at 25 A and 8 A respectively, with rated voltage up to 24 VDC. Both types have two types of contact rated resistance 10mΩ and 25mΩ respectively.

In application field, the UTP28S21RD series is mainly applied in Automotive, Industrial Control, Motor Control, Household Appliances etc. It is specially designed to offer reliable and robust performance for those industry specific requirements. It is also designed to be used in the home and public service industries, such as air conditioners, washing machines, coffee machines, refrigerators, and other household appliances, as well as in industrial equipment which require low current.

In automotive field, the UTP28SP21RD series will be used in all kinds of engines, vehicles and instrument grounds, to control power on/off to parts, these parts include but are not limited to engine starter, starter motor, fuel pump, air conditioning fan, alarm system, heating, ventilation and air conditioning system (HVAC), lighting functions etc. In industrial control field, these series relays can be used to control power on/off to large machinery and instruments, to drive equipment, such as solenoid valves, magnetic valves, door locks, switches, levers, and other machinery. In motor control field, UTP28SP21RD series will be used to control the power of motor, to control the speed of motor or other complicated working principle of motor.

The UTP28SP21RD series can also be used in household appliances, such as televisions, air conditioners, lights, washing machines, vacuum cleaners, and other household appliances which require low current. Such series relays can provide up to 25 A current which is enough to run most of household appliances.

The working principle of UTP28SP21RD is extremely simple. The relay consists of a contact, a coil, a coil Driver, a plunger, and a diode all electrically connected. When the relay is energized, the plunger moves, thus opening and closing the contact. It has a normally open (NO) contact and a normally closed (NC) contact, which are used to control the flow of current on/off to the load. The NO contact will close when energized, while the NC contact will open when energized. It also has a LED indicator which will light up when the relay is energized.

In conclusion, UTP28SP21RD series relays are extremely compact and offer great performance features for a variety of application field. It can be used in automotive, industrial control, motor control, household appliances and many other industries. Thanks to its simple working principle and excellent features, the UTP28SP21RD series can be dependable choice for any application.