The PUREVOLT YL314-12V-C is a waterproof automotive relay featuring a 5-pin S.P.D.T. configuration rated for 12 V DC systems. Designed for reliability in demanding environments, this sealed power relay is built to withstand moisture, vibration and under-hood conditions. Compliant with the DIN 72552 standard, it integrates seamlessly with Bosch-style wiring harnesses and relay sockets found in most automotive and marine applications.

Ideal For

• Automotive applications: cooling fans, fuel pumps, horns, auxiliary lighting
• Marine, ATV and off-road vehicles exposed to moisture and harsh conditions
• Remote control systems and on-board automation circuits
• Any 12 V DC circuit requiring reliable high-current switching in wet environments

Key Features

• Waterproof design - moisture-resistant housing for long-lasting durability
• S.P.D.T. contact configuration (N.O. 40 A and N.C. 30 A) for maximum wiring flexibility
• DIN 72552 compliant - universal compatibility with automotive electrical systems
• Standard 1/4 in (6.35 mm) terminals - quick and easy installation
• Compact, rugged housing - fits standard relay boxes and panels

Detailed Description
The PUREVOLT 5-pin 12 V waterproof relay is the go-to component for automotive, marine and off-road power switching needs. Its S.P.D.T. (Single Pole Double Throw) contact configuration provides two output circuits: a normally open (N.O.) contact rated at 40 A for primary loads, and a normally closed (N.C.) contact rated at 30 A for secondary or safety circuits.

This sealed automotive relay stands out thanks to its weatherproof enclosure, which shields internal contacts from moisture, corrosion and water splashing - critical for under-hood and outdoor installations. The 12 V DC control coil, wired through DIN 72552-standard terminals 85 and 86, ensures direct plug-in compatibility with existing Bosch-style wiring harnesses and relay sockets.

Compact and lightweight, this 5-pin power relay fits easily into standard relay housings or mounts directly to a vehicle's chassis. Whether you are building a custom lighting system, wiring a fuel pump, or upgrading a cooling fan circuit, this vehicle relay delivers the switching performance and durability needed for a wide range of 12 V applications.

Technical Specifications

• Brand: PUREVOLT
• Model: YL314-12V-C
• Contact type: S.P.D.T. - Type B (Single Pole Double Throw)
• Coil voltage: 12 V DC
• Coil terminals (85, 86): 12 V DC
• N.O. contact (terminals 30, 87): 40 A - 12 V DC
• N.C. contact (terminals 30, 87a): 30 A - 12 V DC
• Number of pins: 5
• Terminal size: 1/4 in (6.35 mm)
• Width: 1.10 in (28 mm)
• Depth: 1.22 in (31 mm)
• Height: 0.98 in / 1.61 in (25 mm / 41 mm)
• Standard: DIN 72552
• Housing: weatherproof / waterproof sealed design
• Weight: 35 g

FAQ
Q: What is the difference between the 30 A and 40 A ratings on this relay?
A: This S.P.D.T. relay has two output contacts. The normally open (N.O., terminal 87) contact handles up to 40 A for primary loads, while the normally closed (N.C., terminal 87a) contact supports up to 30 A for secondary or failsafe circuits. Choose the appropriate output based on your circuit's requirements.
Q: Is this relay compatible with standard Bosch-style relay sockets and harnesses?
A: Yes. Compliant with DIN 72552, this relay uses the standard pin numbering (30, 85, 86, 87, 87a) and plugs directly into Bosch-style sockets and wiring harnesses widely available on the market.
Q: Can this waterproof relay be used in a boat or ATV?
A: Absolutely. Its sealed, weatherproof housing makes it well suited for moisture-prone environments such as boats, ATVs, off-road vehicles and outdoor installations, in addition to standard automotive use.
Q: What are typical applications for this 12 V 30/40 A relay?
A: This relay is ideal for switching cooling fans, fuel pumps, horns, auxiliary lights, electric starters and other high-current 12 V DC accessories in automotive and marine environments.