Description
The Siemens 3UB81234DW2 is a three-phase overload relay engineered to deliver dependable motor protection across a broad current range of 5.5 to 22 amps. Designed for use in commercial and industrial HVAC applications, this relay safeguards motors, compressors, and other three-phase loads from damage caused by overloads, phase loss, and phase imbalance.
With both manual and automatic reset capability, the 3UB81234DW2 offers operational flexibility to suit a wide range of installation and control panel requirements. Its robust construction and precise trip characteristics make it a trusted choice for HVAC contractors and electrical panel builders.
Key Features
- Current range: 5.5–22 amps
- Three-phase motor overload protection
- Manual and automatic reset modes
- Protects against overload, phase loss, and phase imbalance
- Suitable for commercial and industrial HVAC control panel applications
- Siemens 3UB81 series solid-state overload relay
Applications
- Three-phase motor starters and control panels
- Commercial HVAC compressor and blower motor protection
- Industrial motor control centers (MCCs)
- Pump and fan motor circuits
Why Choose Siemens
Siemens is a globally recognized leader in electrical protection and control components. The 3UB81 series overload relays are built to exacting standards, providing long service life and reliable trip performance in demanding environments. Trust Siemens and Jackson Systems for your motor protection needs.
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