12V Start Relay for QJ150
Overview
The 12V Start Relay for the QJ150 is an electromagnetic switch that connects the battery to the starter motor when the ignition button is pressed. It allows a low-current switch to control the high-current circuit required to crank the 150cc engine.
Technical Specifications
|
Parameter |
Specification |
|
Rated Voltage |
12V DC |
|
Continuous Current |
30A |
|
Peak Current |
150A / 5 seconds |
|
Coil Power |
≤4.2W |
|
Contact Material |
AgNi15 Silver-Nickel Alloy |
|
Housing Material |
Glass-Fiber Reinforced PBT |
|
Operating Temperature |
-40°C to +85°C |
|
Electrical Life |
50,000 cycles under 100A load |
|
Corrosion Resistance |
96h Salt Spray Test (ASTM B117) |
|
Insulation Resistance |
>100MΩ |
OEM Customization & Private Label
Terminal Options: Customizable terminal thickness, wire lead lengths, and alloy plating options (Tin, Nickel, or Silver) designed for continuous 150cc engine cold starts.
Mounting Adaptability: Dedicated tooling available for slide-on rubber sleeves, multi-directional steel brackets, and custom orientation locating tabs to match specific QJ150 frame geometries.
Private Labeling: Permanent fiber laser engraving available for custom SKUs, serial tracking codes, and corporate logos directly on the relay housing.
Coil Resistance Tuning: Internal coil resistance can be calibrated between 3.5Ω and 4.5Ω to match specific vehicle battery and starter motor current requirements.
Manufacturing Control
100% EOL Testing
Automated End-of-Line testing verifies contact resistance, pull-in/drop-out voltage, and diode/resistor circuit conditions to ensure zero DOA (Dead on Arrival) units.
Component Traceability
Laser-etched batch codes link each unit to raw material batches, copper winding production records, and QC inspection timestamps for rapid quality tracking.
IATF 16949 Compliance
Manufactured under automotive-grade process controls to maintain a field failure rate below 50 PPM and reduce incoming inspection requirements.
Commercial Terms
Standard production MOQ starts at 2,000 units; prototype trial orders available from 1,000 units.
Initial orders delivered within 35 days; recurring orders can be reduced to 21 days under blanket purchase agreements.
30% advance deposit + 70% balance against Bill of Lading (B/L), or Irrevocable Letter of Credit (L/C) at sight.
Packaging & Logistics
Each relay is secured in individual thermoformed anti-static cellular trays to prevent terminal bending and surface scratches.
Heavy-duty 5-ply corrugated cartons with heat-sealed polyethylene liners protect against salt-air corrosion during up to 45-day ocean transportation.
Products are shipped on standard 1200 × 800 mm ISPM-15 heat-treated export pallets with multi-layer stretch wrapping, optimized for 20-foot GP container loading.
Standard delivery terms include FOB Shanghai, CIF Rotterdam, and DDP Los Angeles.
Compliance
Ingress Protection: Automated epoxy injection sealing achieves IP67 protection, verified against high-pressure washdowns and environmental exposure.
Vibration & Isolation: Certified to QC/T 413-2002 standards with 4.5g sinusoidal vibration resistance and AC 500V dielectric isolation for 60 seconds.
Global Certifications: Fully compliant with EU RoHS (2011/65/EU) and REACH (EC 1907/2006), with verification reports available from SGS and TÜV Rheinland.
FAQ
Q: Can I verify your SGS or TÜV Rheinland test reports independently?
A: Yes, SGS and TÜV Rheinland verification documents can be provided with report references, test dates, and product batch information for supplier qualification review.
Q: Has this relay been supplied for QJ150 motorcycles or similar vehicle applications?
A: Yes, this relay is designed for QJ150 starter systems and similar 125cc-200cc motorcycle applications, with compatibility support for OEM replacement projects.
Q: What is your IATF 16949 certification status?
A: Our production follows IATF 16949 automotive quality management requirements, with certification documents available for customer audit and supplier approval procedures.
Q: Can I order a small quantity for compatibility testing before mass production?
A: Yes, sample and trial orders are available for testing purposes before full-volume production, with quantities depending on customization requirements.
Q: What is the expected service life of this starter relay under normal motorcycle usage?
A: Under normal motorcycle operating conditions, the relay is designed to provide approximately 8-10 years of service life with proper electrical system maintenance.
Q: Can you match an existing starter relay from another supplier?
A: Yes, we support reverse engineering based on customer samples or drawings, including dimensional analysis, electrical parameter matching, and prototype validation.
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