SLA 12VDC 4Pin 30A Power Relay
SLA 12VDC 4Pin 30A Power Relay
SLA 12VDC 4-Pin 30A Power Relay
High-current SPST power relay rated at 30A with 12V DC coil voltage - ideal for switching heavy loads in automotive, industrial, and high-power DIY projects. Available at The Tech Depot, Bengaluru with fast shipping and full warranty.
Specifications
| Relay Type | Power Relay (SPST - Normally Open) |
| Coil Voltage | 12V DC |
| Contact Rating | 30A @ 250V AC / 30V DC |
| Pin Configuration | 4-Pin (2 Coil + 1 COM + 1 NO) |
| Contact Form | 1 Form A (1A / SPST-NO) |
| Coil Resistance | ~400Ohm (typical) |
| Coil Power Consumption | ~0.36W |
| Pick-Up Voltage | <= 9V DC (75% of rated) |
| Release Voltage | >= 1.2V DC (10% of rated) |
| Max Switching Voltage | 250V AC / 30V DC |
| Max Switching Current | 30A |
| Contact Material | Silver Alloy (AgSnO2 or AgCdO) |
| Operate Time | <= 15ms |
| Release Time | <= 10ms |
| Dielectric Strength | >= 1500V AC (coil to contact) |
| Insulation Resistance | >= 100MOhm @ 500V DC |
| Mechanical Life | 10,000,000 operations (no load) |
| Electrical Life | 100,000 operations (at rated load) |
| Operating Temperature | -40 degreesC to +85 degreesC |
| Mounting Style | PCB Through-Hole |
| Dimensions (approx.) | 27.5 x 20.5 x 21mm |
| Weight (approx.) | ~20g |
| Series | SLA (Songle or equivalent) |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Key Features
- 30A High-Current Switching: Handles heavy resistive and inductive loads including motors, heaters, pumps, and high-power lighting circuits.
- 12V DC Coil: Directly compatible with 12V automotive systems, battery-powered setups, Arduino (via driver transistor), and standard 12V power supplies.
- 4-Pin SPST-NO Configuration: Simple normally-open single-pole design - only 4 pins for straightforward wiring and PCB layout.
- Low Coil Power Consumption: Approximately 0.36W coil draw makes it efficient and easy to drive with a small transistor or MOSFET.
- Silver Alloy Contacts: High-quality contact material ensures low contact resistance, minimal arcing, and long electrical life at rated loads.
- Compact Form Factor: Small relay footprint (~27.5 x 20.5mm) fits easily on custom PCBs, relay modules, and tight enclosure spaces.
- Wide Temperature Range: Operates reliably from -40 degreesC to +85 degreesC, suitable for automotive under-hood, outdoor, and industrial environments.
- High Dielectric Strength: 1500V AC isolation between coil and contacts ensures safe separation of control and load circuits.
- Excellent Mechanical Durability: Rated for 10 million mechanical cycles, ensuring years of reliable service in switching applications.
- PCB Through-Hole Mount: Standard pin spacing for easy soldering onto single-sided or double-sided PCBs without special tooling.
Pin Configuration (4-Pin Layout)
| Pin | Function | Description |
| Pin 1 | Coil (+) | Connect to +12V DC through a switching transistor or directly from a control signal |
| Pin 2 | Coil () | Connect to ground (GND) of the 12V supply |
| Pin 3 | Common (COM) | Common terminal - connect to the load power source |
| Pin 4 | Normally Open (NO) | Connects |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy SLA 12VDC 4Pin 30A Power Relay Online in India
Purchase the SLA 12VDC 4Pin 30A Power Relay online at The Tech Depot - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on SLA 12VDC 4Pin 30A Power Relay with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy SLA 12VDC 4Pin 30A Power Relay at the best price in India? The Tech Depot offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.