Description
Product Overview
The HR127T is a high‑quality DIN rail relay engineered by Standard Motor Products for demanding automotive and industrial applications. Featuring a machined exterior, this 36‑watt relay operates automatically and includes a secure screw‑type connector for reliable wiring. With three terminals, a compact footprint of 2.2 x 1.9 x 4.1 inches, and a lightweight design at just 2.53 ounces, it fits seamlessly onto standard DIN rails. The relay’s robust construction ensures long‑term durability even in high‑vibration environments.
Usage
Designed for starter relay replacement, the HR127T excels in automotive repair shops, fleet maintenance facilities, and DIY garage projects. Its automatic operation makes it suitable for controlling starter motors, ignition systems, and auxiliary circuits. The screw connector simplifies wiring in tight spaces, while the DIN rail mounting provides a tidy, organized panel layout. Ideal for technicians and enthusiasts seeking a dependable, easy‑install solution.

Why Choose Us
Standard Motor Products brings decades of engineering expertise to every relay, guaranteeing precise tolerances and rigorous testing. The HR127T undergoes strict quality control to meet automotive standards, offering consistent performance and reduced failure rates. Our commitment to reliable components means fewer service calls and greater peace of mind for professionals who depend on dependable electrical control.
Key Features
- 36 W automatic operation for reliable starter control
- Screw‑type connector ensures secure, vibration‑resistant wiring
- Compact DIN rail design fits standard panels with ease
- Three terminals simplify circuit integration
- Machined metal housing provides superior durability
FAQ
What vehicles is the HR127T compatible with?
The HR127T is a universal starter relay suitable for most gasoline and diesel engines that use a standard 12 V automotive electrical system.
Can the relay be used in industrial control panels?
Yes, its DIN rail mounting and robust construction make it ideal for industrial applications such as motor starters and safety interlocks.
Is the screw connector compatible with standard wire gauges?
The connector accepts 18‑22 AWG wire, providing a secure connection for typical automotive and control wiring.
How does the automatic operation mode work?
When voltage is applied, the relay automatically engages, allowing current to flow to the starter motor without manual intervention.
What warranty does Standard Motor Products offer?
The HR127T comes with a one‑year limited warranty covering manufacturing defects, ensuring reliable performance and support.




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