12V 40A 5-Pin Waterproof Automotive Relay with Socket
12V 40A 5-Pin Waterproof Automotive Relay with Socket
Waterproof 12V 40A 5-Pin Automotive Relay with Socket
Keep your vehicle's electrical circuits running safely and reliably with this heavy-duty 12V 40A 5-Pin Waterproof Automotive Relay. Built with a red copper coil, Cu-Ag-Cr alloy contact point, and integrated fuse protection, this relay delivers dependable switching performance in demanding under-hood environments. The included relay socket makes installation quick and straightforward — no additional hardware required.
Made in Mainland China.
Key Features
- Waterproof & Dustproof Construction — Sealed dust-type housing protects internal components from moisture, dirt, and debris
- Red Copper Coil — Maximizes conductivity and minimizes heat build-up during operation
- Cu-Ag-Cr Alloy Contact Point — Silver alloy contacts ensure consistent, arc-resistant switching over millions of cycles
- Built-in Fuse & Over-Current Protection — Red copper over-current protection and integrated fuse add an extra layer of circuit safety
- Socket Included — Plug-and-play relay socket included for fast, secure fitment
- Wide Temperature Range — Operates reliably from -40°C to +85°C, and stores safely from -40°C to +155°C
Technical Specifications
| Rated Voltage | DC 12V |
| Operating Current | 40A |
| Number of Pins | 5-Pin |
| Contact Form | 1A 1B 1C 2A |
| Contact Material | Silver Alloy (Cu-Ag-Cr) |
| Electrical Life | 100,000 operations |
| Mechanical Life | 10,000,000 operations |
| Initial Insulation Resistance | 500 MΩ |
| Operate Time | 7 ms |
| Release Time | 5 ms |
| Ambient Temperature | -40°C ~ +85°C |
| Storage Temperature | -40°C ~ +155°C |
| Termination | QC (Quick Connect) |
| Construction | Dust Type |
| Model Number | TD0302 |
What's in the Box
- 1 × 12V 40A 5-Pin Automotive Relay with Socket
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Frequently Asked Questions
Q: What vehicles is this 12V 40A automotive relay compatible with?
A: This relay is designed for standard 12V DC automotive electrical systems, making it compatible with most cars, trucks, SUVs, motorcycles, and other 12V vehicles. Always verify your circuit's voltage and current requirements before installation.
Q: Does this relay come with a socket, or do I need to buy one separately?
A: The relay socket is included in the package, so you can connect and install the relay right away without needing to source a separate socket or adapter.
Q: Is this relay suitable for outdoor or wet engine-bay environments?
A: Yes. The dust-type sealed construction and waterproof design make it well-suited for under-hood locations and other environments where moisture and debris may be present. Its operating temperature range of -40°C to +85°C ensures year-round dependability.