Specifically designed for automotive starter systems, the SLNB Relay's 80A/50A instantaneous switching capability precisely matches the short-duration, high-load power demands of starting. Its 30-second rated operating time perfectly matches the instantaneous characteristics of the starting process, ensuring rapid response and smooth power transmission. An ultra-low voltage drop of ≤200mV reduces contact heating during startup, avoiding overload risks. Combined with a wide automotive-grade temperature range of -40℃ to +125℃, it eliminates starting failures caused by extreme cold or high engine compartment temperatures. From power transmission to environmental adaptability, it provides comprehensive start-up safety, reducing the probability of vehicle starting failures.
Our SLNB Relays come with CE certification, meeting the compliance requirements for automotive accessories in most regions worldwide, clearing compliance obstacles for wholesalers exporting or supplying to multiple regions. Customized production is supported, allowing adjustments to details based on different automakers' starting system specifications and wholesalers' target market needs, flexibly adapting to diverse orders. QC quick-connect terminals adapt to the batch assembly rhythm of automotive production lines, while the lightweight 80g and compact structure facilitate warehousing and transportation, reducing wholesalers' logistics and assembly costs.
TheSLNB Relays boast a 1×10⁵ electrical life and a 1×10⁷ mechanical life, adapting to high-frequency automotive starting scenarios, reducing after-sales repair rates and enhancing wholesalers' product reputation. The factory-direct supply model ensures stable batch supply, avoiding supply disruption risks. A professional team handles quotations and customization needs, making the entire process from compliance access and customized production to batch delivery worry-free and efficient for wholesalers. It is a high-value component that balances automotive starting safety and wholesale ecosystem compatibility.
The SLNB starter relay is used in automotive starting systems.
The starter relay connects the battery to the starter motor.
When the ignition key signal energizes the coil, the contacts close, and the starter motor drives the engine crankshaft to rotate.
Controls the starting device of a car
80A Switching capability
Extended temp. range up to 125℃
1 Form A contact
QC terminals
| Contact Parameters | Value |
| Contact arrangement | A |
| Contact rating | 80A 12VDC (Rated duration: 30s)50A 24VDC (Rated duration: 30s) |
| Voltage drop | ≤200mV |
| Electrical endurance | 1×10⁵ ops |
| Mechanical endurance | 1×10⁷ ops |
| Coil Parameters | Value |
| Nominal voltage | 12VDC/24VDC |
| Power dissipation | 5.2W |
| Pick-up voltage (Max) | 65% of nominal voltage |
| Drop-out voltage (Min) | 10% of nominal voltage |
| Other Parameters | Value |
| Ambient temperature (°C) | −40°C~+125°C |
| Dielectric strength (Coil & contacts, 1min) | 500VAC |
| Dielectric strength (Open contacts, 1min) | 500VAC |
| Insulation resistance (500VDC) | 100MΩ |
| Wiring diagram (Bottom view) |
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| Installation hole drawing (Bottom view) | |
| Termination | QC (Quick Connect) |
| Weight | 80g |
Address
CW7, Area A, Zhejiang Yuandong Industrial City, Yuyao City, Zhejiang Province, China
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