NINGBO KEYONG JINGSHENG ELECTRICAL APPLIANCE CO., LTD. presents the Standard ISO Terminal High Current Automotive Relay KLDH (V7), a heavy-duty electromechanical switching solution designed for high-load automotive and industrial power systems requiring stable 100A current handling capability.
As a professional China automotive relay manufacturer and supplier, KEYONG develops this model to ensure long-term reliability, safety, and flexible circuit design options for OEM and industrial buyers.
The Standard ISO Terminal High Current Automotive Relay KLDH (V7) is engineered with strong performance advantages:
●High current switching capacity up to 100A for heavy-duty applications
●Flexible contact configurations: 1 Form A / 1 Form B / 1 Form C
●Wide operating temperature range: -40°C to 125°C for harsh environments
●Built-in blowout magnets for effective arc suppression and contact protection
●Available in dustproof and plastic sealed structures with flux-proof protection
●Low coil power consumption supporting energy-efficient system design
●Coil voltage options: 12VDC and 24VDC
●Enhanced safety version with contact gap > 0.8mm (24V model)
●Multiple installation methods: plug-in terminals, PCB mounting, and quick connect compatibility
●Standard ISO terminal design for universal automotive compatibility
●High current switching capability for demanding electrical loads
●Stable performance under vibration, heat, and long-term operation
●Low coil power consumption for energy efficiency
●Strong contact reliability with long electrical lifespan
●Available in multiple configurations for different vehicle systems
●Designed for easy plug-in installation and replacement
As a professional automotive relay supplier from China, KEYONG ensures every relay is produced under strict quality control systems to guarantee stable performance in real-world applications.
The Standard ISO Terminal High Current Automotive Relay is designed to meet the operational demands of complex automotive circuits. It supports stable switching performance in systems requiring high load capacity, such as engine control, lighting systems, and power distribution modules.
Key engineering strengths include:
●Reliable high current switching for automotive circuits
●Consistent electrical contact stability under load conditions
●Resistance to thermal stress and mechanical vibration
●Optimized coil structure for efficient activation response
Manufactured in KEYONG’s advanced production facility in Ningbo, each relay is tested through automated inspection systems to ensure accuracy and durability.
| Contact arrangment | 1/2A,1/2B 1/2C |
| Voltage drop(at 10A) | ≤200mV |
| Contact material | Silver alloy:AgSnO₂ In₂O₃、AgSnO₂、AgNi |
| Contact rating | 30A/40A/60A 14VDC |
| Max switching voltage | See“Load limit curve” |
| Max switching current | 60A(Resistive 14VDC) |
| Min contact load | 1A 6VDC |
| Electrical endurance(Frequency:900 ops/h) | 1×10⁵ops |
| Mechanical endurance(Frequency:18000 ops/h) | 1×10⁷ops |
| Power consumption(W) | 1.6W | 1.8W | 1.6W | 1.8W | 1.8W | 2.0W |
| Nominal voltage(VDC) | 12 | 12 | 24 | 24 | 24 | 24 |
| Coil resistance(Q±10%) | 90 | 90 | 360 | 360 | 320 | 320 |
| Parallel resistance(Ω) |
|
680 |
|
2700 |
|
2700 |
| Pick-up voltage(Max) | 65%(Nominal voltage) | |||||
| Drop-out voltage(Min) | 10%(Nominal voltage) | |||||
| Max allowable overdrive voltage(VDC) | 150%(Nominal voltage) | |||||
| nsulation level | Class B/Class F | |
| nsulation resistance | 100MΩ(500VDC) | |
| Dielectric strength(Leakage current 1mA) | Dielectric strength(Between coil and contacts) | 500VAC minute |
| Dielectric strength(Between open contacts) | 500VAC minute | |
| Operate time(at nominal voltage) | ≤10ms | |
| Release time(without diode)(at nominal voltage) | ≤10ms | |
| Humidity | 5%～85%RH | |
| Ambient temperature | -40℃~+125℃ | |
| Vibration resistance | 5Hz~22.3Hz 10mm Double amplitude | |
| 22.3Hz~500Hz 98m/s² | ||
| Shock resistance | 294m/s² | |
| Weight | Approx 36g | |
| Construction | Dustproof | |
The Standard ISO Terminal High Current Automotive Relay is widely applied in multiple industries and systems, including:
●Automotive lighting and headlamp systems
●Engine control and fuel pump systems
●Electric cooling fans and HVAC systems
●Renewable energy charging and storage systems
●Industrial automation control equipment
●Security and surveillance systems
●Household electrical appliances
With strong adaptability, KEYONG relays serve both traditional automotive manufacturers and emerging new energy industries.
1. What is a Standard ISO Terminal Automotive Relay used for?
It is used to control high current circuits in vehicles and electrical systems, including lighting, engine control, and power distribution applications.
2. Why choose ISO terminal relay design?
ISO terminal design ensures universal compatibility, easy installation, and stable connection with standard automotive sockets.
3. Can this relay be used in new energy systems?
Yes, it is widely used in renewable energy charging and storage systems due to its high current stability and reliability.
4. What industries use KEYONG automotive relays?
They are used in automotive electronics, industrial automation, household appliances, communication equipment, and security systems.
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350 Renmin North Road, Hengxi Town, Yinzhou District, Ningbo City, Zhejiang Province, China
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