Description
Product Overview
The RY109 is a high‑quality DIN rail relay engineered by Standard Motor Products for demanding automotive and industrial environments. Featuring a robust screw‑type connector and a normally open contact configuration, this relay operates automatically to protect circuits from overloads. Constructed from durable materials, it weighs only 0.02 ounces and is supplied in packs of two, ensuring both lightweight handling and cost‑effective stocking. Key specifications include a part number RY109, model RY109, and compliance with industry standards for circuit opening relays.
Usage
Designed for installation on standard DIN rails, the RY109 fits seamlessly into automotive control panels, heavy‑duty machinery, and industrial automation systems. Its automatic operation makes it ideal for protecting sensitive electronics, managing power distribution, and ensuring safety in high‑current applications. Technicians and engineers will appreciate the easy screw mounting, which simplifies wiring and reduces installation time in both new builds and retrofits.

Why Choose Us
Standard Motor Products brings decades of expertise to every relay, guaranteeing reliability and performance. The RY109 undergoes rigorous testing to meet automotive replacement standards, earning a top ranking in its category. Our commitment to quality ensures consistent operation under extreme temperatures and vibration, providing peace of mind for professionals who demand dependable circuit protection.
Key Features
- Durable screw‑type connector for secure, low‑resistance connections
- Normally open contact design for precise circuit control
- Automatic operation mode eliminates manual intervention
- Compact DIN rail mounting for space‑saving installations
- Pack of two relays, ideal for bulk projects and replacements
FAQ
What type of connector does the RY109 use?
The RY109 utilizes a screw‑type connector, providing a secure and reliable connection that resists loosening under vibration.
Can the relay be mounted on a standard DIN rail?
Yes, the relay is specifically designed for DIN rail mounting, allowing quick and easy installation in control panels.
Is the RY109 suitable for automotive applications?
Absolutely. It meets automotive replacement standards and is ranked #3 in its category, making it a trusted choice for vehicle electrical systems.
What is the contact configuration?
The relay features a normally open (NO) contact, which closes the circuit only when activated, providing precise control.
How many units are included per pack?
Each package contains two RY109 relays, offering a convenient quantity for most maintenance and installation projects.








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