The part number **NT90RHASAC24VCF0.6** refers to a specific configuration of a high-power PCB relay, typically manufactured by companies like **NHG** (Ningbo Huaguan Electronics). These are commonly used in HVAC systems, industrial controls, and domestic appliances. --- ### Part Number Breakdown The following table decodes the specifications based on standard naming conventions for the NT90 (T90) series relays: | Segment | Code | Description | | :--- | :--- | :--- | | **Model** | NT90 | T90 Series (Power Relay) | | **Contact Form** | R | 1 Form C (SPDT - Single Pole Double Throw) | | **Sealing** | H | Sealed type (Wash tight) | | **Contact Material** | A | Silver Alloy (AgSnO2) | | **Construction** | S | Sealed structure | | **Coil Voltage** | AC24V | 24 Volts Alternating Current | | **Contact Rating** | C | Standard Load Rating | | **Coil Power** | F | Class F Insulation (155°C) | | **Contact Gap** | 0.6 | 0.6mm Contact Gap | --- ### Technical Specifications #### 1. Coil Data * **Nominal Voltage:** 24V AC * **Power Consumption:** Approximately 2.0 VA (Typical for AC coils in this series). * **Insulation Class:** Class F (Allows for higher operating temperatures). #### 2. Contact Data * **Contact Arrangement:** 1 Form C (One set of change-over contacts). * **Maximum Switching Current:** Usually 30A to 40A (depending on the specific load type, NO/NC). * **Maximum Switching Voltage:** 250V AC / 30V DC. #### 3. General Characteristics * **Dielectric Strength:** 2500V AC between coil and contacts. * **Mounting:** Through-hole PCB terminals (often includes "Quick Connect" spade terminals on top for high current). * **Operating Temperature:** -55°C to +105°C (due to Class F rating). --- ### Common Applications Due to its high current handling and AC coil, this relay is frequently found in: * **HVAC Systems:** Controlling compressors, fan motors, and heaters. * **Industrial Automation:** Switching solenoids or small motors. * **Power Supplies:** Large UPS systems or battery chargers. ---