NINGBO KEYONG JINGSHENG ELECTRICAL APPLIANCE CO., LTD. supplies the KQI15H (115FH) 16A 20A Miniature High Power Relay, featuring 5kV dielectric strength, compact size, and 10mm creepage distance for reliable high-load switching performance. Designed for high-density PCB mounting, it is widely used in air conditioners, vending machines, copy machines, remote control TV sets, and other household or commercial electrical equipment requiring stable and safe power control.
Choose Based on Load Current
For standard household appliances and medium-load control systems, a 16A relay is commonly sufficient. For equipment with higher startup current or continuous heavy-load operation, a 20A relay is recommended for improved stability and durability.
Confirm Coil Voltage Requirements
Different systems require different coil voltages such as 5V, 12V, 24V, or 48V DC. Selecting the correct coil specification helps ensure reliable relay operation and protects the control circuit.
Consider Installation Environment
For applications involving vibration, temperature fluctuation, or long operating cycles, selecting a relay with stable contact materials and strong insulation performance is important for long-term reliability.
Evaluate PCB Space and Structure
The miniature design helps reduce PCB occupation space while maintaining high current switching capability, making it suitable for compact electronic products and intelligent control modules.
High Switching Capacity
Designed for 16A and 20A load switching applications, the relay maintains stable electrical performance under continuous working conditions. It is suitable for high-power equipment requiring reliable current control and durable contact operation.
Compact Miniature Structure
The miniature PCB relay structure helps optimize installation space inside electronic devices while maintaining excellent insulation and switching reliability. It is an ideal choice for compact electrical systems and intelligent control modules.
Stable Contact Performance
High-quality contact materials improve conductivity and arc resistance, reducing contact wear during frequent switching operations and helping extend relay service life.
Low Coil Power Consumption
The optimized coil design reduces energy consumption and heat generation during operation, supporting energy-efficient electronic systems and improving overall equipment stability.
Excellent Electrical Safety
The relay is manufactured under strict quality standards and tested with advanced inspection equipment to ensure reliable insulation performance and operational safety in demanding applications.
| Contact arrangment | A,B,C |
| Contact resistance | ≤100mΩ |
| Contact material | Silver ally:AgSnO₂In₂O₃、AgSnO₂、AgNi |
| Contact rating(Res.load) | 16A 250VAC/16A 30VDC |
| Max switching voltage | 440VAC/125VDC |
| Max switching current | 16A |
| Max switching power | 4000VA |
| Electrical endurance(Frequency:360 ops/h) | 1×10⁵ops/1×10⁴ops |
| Electrical endurance(Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 0.4W(L) | |||||||
| Nominal voltage(VDC) | 05 | 06 | 09 | 12 | 18 | 24 | 36 | 48 |
| Coil resistance(Ω±10%) | 62 | 90 | 202 | 360 | 810 | 1440 | 3240 | 5760 |
| Pick-up voltage(Max) | 70%(Nominal voltage) | |||||||
| Drop-out voltage(Min) | 10%(Nominal voltage) | |||||||
| Max allowable overdrive voltage(VDC) | 150%(Nominal voltage) | |||||||
| Insulation level | B/F | |
| Insulation resistance | 1000MQ(500VDC) | |
| Dielectric strength(Leakage current 1mA) | Between coil and contacts | 5000VAC 1min |
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Between open contacts | 1000VAC 1min |
| Operate time(at nominal voltage) | ≤15ms | |
| Release time(without diode)(at nominal voltage) | ≤8ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+85℃ | |
| Shock resistance | Functional | 98m/s² |
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Destructive | 980m/s² |
| Vibration resistance | 10Hz~150Hz | |
| Weight | Approx 15g | |
| Construction | Sealed Flux proofed | |
The KEYONG 16A 20A Miniature High Power Relay is widely used in various industries and electrical control systems, including:
●Household appliances
●Smart home systems
●Industrial automation equipment
●Communication devices
●Renewable energy charging and storage systems
●Security and surveillance systems
●Automotive electronics
●Intelligent control systems
●Power management equipment
●PCB control boards
As an experienced China relay factory, KEYONG works closely with customers from North America, Europe, Southeast Asia, the Middle East, and South America to provide relay solutions for different industrial environments.
1.What is the difference between a 16A relay and a 20A relay?
The main difference is the switching current capacity. A 20A relay can handle higher load current and is more suitable for equipment with heavy electrical loads or high startup current requirements.
2.Can this miniature power relay be used for PCB mounting?
Yes. The relay is designed for PCB mounting applications and is suitable for compact electrical control systems and automation equipment.
3.Does KEYONG support OEM customization?
Yes. KEYONG provides OEM and customized relay solutions based on customer specifications, including coil voltage, terminal configuration, and application requirements.
4.How does KEYONG ensure relay quality?
KEYONG follows strict ISO9001 quality management procedures and uses advanced automated production and testing equipment. All products undergo comprehensive inspection and comply with international certification standards such as UL, TUV, CE, RoHS, and CQC.
Professional Relay Factory in China
Ningbo Keyong Jingsheng Electrical Appliance Co., Ltd. was established in 2012 and has developed into a large-scale relay manufacturer with annual production capacity exceeding 80 million pieces. The factory covers 12,000 square meters and is equipped with multiple automated production and testing lines.
Advanced Manufacturing Equipment
KEYONG utilizes intelligent manufacturing systems including:
●Automatic assembly machines
●Industrial vision inspection machines
●Winding and soldering equipment
●Automatic testing machines
●Riveting and inspection systems
●Ultrasonic cleaning equipment
●Parameter adjustment machines
These advanced facilities help ensure product consistency and production efficiency for every miniature power relay.
Strict Quality Control System
Product quality remains the core focus throughout every manufacturing process. Each relay undergoes comprehensive testing and inspection before delivery.
Our products comply with international standards and certifications including:
●UL Certification
●TUV Certification
●CQC Certification
●CE Certification
●RoHS Compliance
●ISO9001:2015 Quality Management System
OEM and Customized Relay Support
As a professional relay supplier, KEYONG supports OEM and customized relay solutions according to customer requirements, including:
●Coil voltage customization
●Terminal structure adjustment
●Wiring harness and socket matching
●Application-based relay selection
●Technical support for PCB integration
Address
350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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