Description
Product Overview
The Standard Motor Products RY123 relay is engineered for dependable circuit interruption in demanding environments. Featuring robust silver‑alloy contacts, a screw‑type connector, and a compact DIN rail mounting profile, this relay measures 2 x 2 x 3 inches and weighs just 1.41 ounces. Designed for automatic operation, it offers three terminals (normally open) to simplify wiring and enhance reliability in automotive and industrial systems.
Usage
Ideal for automotive replacement circuits, industrial control panels, and any application requiring precise, automatic switching, the RY123 excels in harsh conditions. Its painted exterior resists corrosion, while the DIN rail design ensures quick, secure installation in standard panels. Targeted at engineers, technicians, and DIY enthusiasts, this relay provides a straightforward solution for protecting motors, lights, and sensors.

Why Choose Us
Standard Motor Products is renowned for quality and durability. Each relay undergoes rigorous testing to meet automotive standards, guaranteeing long‑term performance. Our commitment to precision manufacturing ensures consistent contact resistance and reliable actuation, reducing downtime and maintenance costs for your projects.
Key Features
- Silver‑alloy contacts for high conductivity and wear resistance
- Screw mounting compatible with standard DIN rail systems
- Automatic operation mode with three‑terminal configuration
- Compact 2″ x 2″ x 3″ size fits tight panel spaces
- Rated for automotive replacement circuit opening applications
FAQ
What is the mounting type for this relay?
The RY123 uses a screw‑type connector and is designed for DIN rail mounting, allowing easy installation in standard panels.
Can this relay be used in automotive applications?
Yes, it is rated for automotive replacement circuit opening relays and meets the necessary industry standards for durability and performance.
What is the contact material and why is it beneficial?
The contacts are made of silver alloy, which provides excellent conductivity, low resistance, and superior wear resistance for reliable switching.
Is the relay suitable for automatic operation?
Absolutely. The relay operates in automatic mode, providing consistent actuation without manual intervention.
What are the dimensions and weight of the relay?
The relay measures 2 x 2 x 3 inches and weighs approximately 1.41 ounces, making it lightweight and easy to handle.






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