Description
The Siemens 3RU2116-1GB0 is a thermal overload relay engineered to provide dependable motor protection across a wide range of commercial and industrial HVAC and mechanical system applications. Designed for use with Siemens 3RT contactors and motor starters, this relay offers a straightforward, cost-effective solution for safeguarding motors against damaging overcurrent conditions.
Product Overview
This overload relay features an adjustable current setting range of 4.5 to 6.3 amperes, making it well-suited for protecting small to medium fractional and integral horsepower motors commonly found in HVAC equipment, pumps, fans, and compressor systems. The compact design integrates directly with compatible Siemens contactor assemblies for clean, space-saving panel installations.
Key Features
- Adjustable trip current range: 4.5–6.3A
- Thermal overload protection for single- and three-phase motors
- Direct mounting to compatible Siemens 3RT series contactors
- Manual and automatic reset capability
- Trip class protection guards against sustained overcurrent and phase loss
- Compact, DIN-rail compatible form factor
- Siemens quality construction for long service life
Typical Applications
- HVAC motor starter panels
- Circulator pump motor protection
- Fan and blower motor circuits
- Compressor motor control panels
- Commercial and light industrial electrical enclosures
Why Choose the Siemens 3RU2116-1GB0
Siemens overload relays are trusted by electrical contractors and HVAC professionals for their precision, reliability, and ease of integration. The 3RU2116-1GB0 delivers accurate, repeatable trip performance to protect valuable motor assets from overheating and premature failure — reducing downtime and costly equipment replacement.
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