HE2AN-S-AC48V

Power Relays, Over 2 Amps - HE2AN-S-AC48V Application Field and Working Principle

Power relays are electrical switches that open and close circuits by using an electromagnet to operate the switch contacts. Power relays are available in many forms, used in controlling multiple electric circuits, all depending on the application. One example of a power relay is the HE2AN-S-AC48V, which has high capacity and multiple contact capability (4 contacts normally open). Among other applications, the HE2AN-S-AC48V is particularly useful for large-scale control of air conditioning and electric heating units.

Main Features

• 4 contact configuration, normally open
• High carrying capacity
• Low contact resistance
• UL Recognized

Working Principle

HE2AN-S-AC48V works with an ELECTROMAGNETIC CIRCUITRY. When the voltage is applied to the coil, the current flowing through it creates a static magnetic field. This magnetic field attracts the armature of the relay, connecting the contact points. This connection allows the current to flow and hence turn the circuit on. When the voltage is cut off, the electromagnetic field collapses and the armature is released, breaking the contact and thus turning off the circuit.

Specifications and Ratings

• Storage temperature range: -25 to +55°C
• Wave solder profile: 260°C for 10 sec
• Insulation resistance min: 2 Megohms
• Operate time (at nominal voltage): 9ms max
• Release time (at nominal voltage): 4ms max
• Max switching current: 6A
• Max switching power: 480VA

Applications

The HE2AN-S-AC48V is particularly useful for large-scale control of air conditioning and electric heating units. Its high carrying capacity and four contact configuration, makes it suitable for systems that require a high degree of control. For example, the HE2AN-S-AC48V relay can be used to control all the components in an HVAC system, including the compressor, fan, gas valve, thermostat, etc. It is also commonly used in switching solenoids, controllers, and other high-power resistance loads such as electric heating elements.

Advantages

• Low power consumption
• High current/voltage carrying capacity
• Customizable configurations
• Robust and durable design
• UL Recognized

Disadvantages

• Noisy operation
• High acceleration and deceleration time can cause vibration in contacts
• Low response rate
• Requires frequent maintenance and replacement of components