Description
Hongfa HF115F-Q 009-1D / 009-1DG Electromagnetic Power Relay (9VDC, 16A 250VAC, Normally Closed 1 NC)
The original HF115F-Q series miniature electromagnetic relay (model 009-1D / 009-1DG, equivalent to JQX-115F-Q 1D) from the leading global switching component manufacturer Hongfa is designed for installation in household appliance control units, heating systems, HVAC equipment, and industrial automation devices. The main design feature of the relay is the combination of a normally closed contact group (1 Form B / 1NC) and blade-type power terminals (Quick-connect / Faston), allowing for switching currents up to 16–20 A at 250 VAC without overheating the PCB tracks.
Key Advantages and Features:
- 1D Contact Configuration (Normally Closed / 1 NC): The normally closed contact ensures current flow when the coil is de-energized and instantly opens the power circuit when a 9V control voltage is applied.
- High Load Capacity: Silver-alloy power contacts (AgSnO2 / AgNi) are rated for an operating current of 16 A (with short-term peaks up to 20 A) at 250 V AC, enabling safe control of heating elements, powerful compressors, pumps, and fans.
- Combined Quick-Connect Mounting (Q series): Blade terminals for standard Faston connectors simplify direct power wiring and reduce thermal load on the printed circuit board.
- High Dielectric Strength: Insulation between the coil and contacts withstands breakdown voltage up to 5000 V (surge up to 10 kV), preventing electronics failure during mains voltage spikes.
- Sealed Design (Flux-proofed / Sealed): The housing, made of heat-resistant flame-retardant polyamide, is reliably protected against flux, moisture, and dust penetration during soldering and long-term operation.
Compatibility and Application Areas:
Used as a standard or replacement relay in control boards for a wide range of equipment:
- Heating Equipment and Boilers: Control boards for gas and electric boilers (Vaillant, Protherm, Ferroli, Ariston, Baxi, Viessmann, Bosch, Immergas) for controlling circulation pumps, three-way valve actuators, and smoke exhaust fans.
- HVAC Equipment: Control units for inverter and non-inverter air conditioners, heat pumps, dehumidifiers, and humidifiers (Midea, Gree, Daikin, Mitsubishi, Cooper&Hunter, Ballu).
- Major Household Appliances: Control modules for washing machines and dishwashers (Bosch, Siemens, Whirlpool, Electrolux, Indesit, Beko), convection ovens, electric ovens, and microwave ovens.
- Automation Systems: Thermostats, voltage relays, uninterruptible power supplies (UPS), smart home load control drivers, and security alarms.
- Interchangeable Analogs and Markings: Hongfa HF115F-Q/009-1D, HF115F-Q/009-1DG, HF115F-Q-009-1D(0080), JQX-115F-Q 009-1D, Omron G2RL (NC contact modifications), Schrack/TE Connectivity RT1 series.
Technical Specifications:
| Parameter | Value / Specification |
|---|---|
| Component Type | Electromagnetic DC Power Relay |
| Manufacturer / Brand | Hongfa Relay (Original) |
| Full Factory Marking | HF115F-Q 009-1DG (0080) / JQX-115F-Q 1D |
| Nominal Coil Voltage | 9 VDC (Direct Current) |
| Contact Configuration | 1 Form B (1D) — 1 Normally Closed Contact (1 NC) |
| Rated Switching Current | 16 A / 20 A |
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