HF33F-024-2ZS
Miniature power relay with 15A contact rating and 24VDC coil
Product Overview
Description
The HF33F-024-2ZS is a miniature power relay designed for higher current switching applications. With 15A capacity and DPDT contacts, it offers versatile switching options.
The relay features enhanced contact construction for reliable switching of motor and heater loads.
Ideal for industrial control, HVAC systems, and power distribution applications.
Product Series
HF
Primary Application
HVAC systems
Key Features
- 15A high switching capacity
- DPDT contact configuration
- Low contact resistance
- High dielectric strength
- RoHS compliant
Specifications
| Contact Rating | 15A 250VAC |
|---|---|
| Coil Voltage | 24VDC |
| Contact Configuration | 2 Form C (DPDT) |
| Coil Power | 450mW |
| Operate Time | 15ms max |
| Release Time | 10ms max |
| Contact Resistance | 50mΩ max |
| Insulation Resistance | 1000MΩ min |
| Dielectric Strength | 4000VAC |
| Mechanical Life | 10,000,000 operations |
| Electrical Life | 100,000 operations |
| Temperature Range | -40°C to +85°C |
| Dimensions | 27.0 x 21.5 x 20.0mm |
Applications
HVAC systems
Electronic system design
Industrial control
Industrial automation and control
Motor control
Motor drive and control systems
Power distribution
Electronic system design
FAE Expert Insights
"The HF33F is excellent for industrial applications requiring higher current switching. The 15A rating handles motor loads and heaters with ease. The DPDT configuration is useful for reversing motor applications. I've used these in HVAC control panels and industrial machinery with great results. The contact resistance is low, minimizing voltage drop. Overall, a robust miniature power relay for demanding applications."
15A DPDT relay for industrial and HVAC applications
— David Chen, BeiLuo
Frequently Asked Questions
What is the contact rating and coil voltage of HF33F-024-2ZS?
The HF33F-024-2ZS is a power relay designed for general switching applications. It features robust contact construction capable of handling the specified current and voltage ratings. The coil voltage options allow flexible integration into various control circuits. The relay provides reliable switching performance with excellent electrical life. For detailed specifications including contact material, coil resistance, operate/release times, and insulation resistance, please refer to the datasheet. These parameters make the HF33F-024-2ZS suitable for home appliances, industrial equipment, and power distribution applications.
Select HF33F-024-2ZS based on your load current/voltage requirements and available coil voltage; ensure contact rating provides adequate margin for your application.
How do I select and apply HF33F-024-2ZS in my circuit design?
When using HF33F-024-2ZS in your circuit design, consider several important factors for optimal performance. First, ensure the contact rating provides adequate margin for your load - typically 20% derating is recommended for resistive loads, with higher margins for inductive or capacitive loads. The coil voltage must match your control circuit voltage with consideration for voltage fluctuations. For PCB mounting, follow the recommended footprint and keep high current traces short and wide. Temperature derating may be necessary for applications operating above 40°C ambient. For inductive loads, consider using arc suppression components to extend relay life. Proper coil driving with appropriate current ensures reliable operation.
Apply 20% contact derating; match coil voltage to control circuit; use arc suppression for inductive loads; follow recommended PCB footprint.
How does HF33F-024-2ZS compare to relays from Omron, Panasonic, and TE?
The HF33F-024-2ZS offers competitive performance compared to major relay manufacturers like Omron, Panasonic, and TE Connectivity. In terms of electrical characteristics, Hongfa relays provide comparable contact ratings, coil specifications, and mechanical life to these established brands. The contact materials and construction ensure reliable switching performance. Hongfa's manufacturing quality meets international standards with competitive field failure rates. Pricing is typically more attractive than Japanese and American competitors, offering cost savings for high-volume applications. Lead times are generally shorter with good inventory availability. Hongfa also offers equivalent safety certifications including UL, VDE, and TÜV. For most general-purpose applications, Hongfa relays provide equivalent performance at better value.
Choose Hongfa for cost-effective, reliable relays; consider premium brands only for the most demanding specialized applications.
What are the typical applications for HF33F-024-2ZS?
The HF33F-024-2ZS is suitable for a wide range of power switching applications. In home appliances, it controls compressors, heaters, and motors in air conditioners, refrigerators, and washing machines. Industrial equipment uses these relays for motor control, heating elements, and power distribution. Building automation systems employ them for lighting control and HVAC systems. The relay's robust construction handles various load types including resistive, inductive, and motor loads. Power distribution panels use these relays for circuit switching and protection.
Select HF33F-024-2ZS for general power switching in appliances, industrial equipment, and building automation systems.
What is the lead time, MOQ, and pricing for HF33F-024-2ZS?
The HF33F-024-2ZS has a standard lead time of 4-8 weeks for production quantities, depending on current demand and factory capacity. BeiLuo Electronics maintains strategic inventory for popular relay models, enabling faster delivery for sample and small quantity orders. The minimum order quantity (MOQ) is typically 500 pieces for standard relays, with volume pricing tiers available at 1K, 5K, and 10K+ quantities. Sample quantities (10-50 pieces) are available for prototype development with shorter lead times of 1-2 weeks. Pricing varies based on order volume, with competitive rates for high-volume production. For custom specifications or special requirements, contact our sales team for quotation and lead time estimates. Long-term supply agreements are available for high-volume customers, ensuring stable pricing and guaranteed capacity.
Plan procurement with 4-8 week lead time; contact sales for volume pricing and long-term supply agreements; samples available for prototyping.
What quality certifications does HF33F-024-2ZS have?
The HF33F-024-2ZS is manufactured under Hongfa's comprehensive quality management system certified to ISO 9001 and IATF 16949 for automotive applications. The relay meets UL/C-UL safety standards for North American markets, VDE for German and European markets, TÜV for European safety standards, and CQC for Chinese domestic market. The manufacturing process includes 100% electrical testing for coil characteristics, contact resistance, and dielectric strength. Reliability testing includes life testing, environmental testing, and mechanical endurance testing. Hongfa maintains full lot traceability for quality management and recall prevention.
Specify required certifications for your region; contact sales for certification documentation and automotive qualification data.