Description
The Siemens 3UB81334FW2 is a robust three-phase overload relay engineered to deliver dependable motor protection across a wide current range of 13 to 52 amps. Designed for commercial and industrial HVAC applications, this relay safeguards motors and downstream equipment from the damaging effects of overload conditions, phase loss, and phase imbalance.
With both manual and automatic reset capability, the 3UB81334FW2 provides operational flexibility — allowing technicians to configure the unit for attended manual reset after a trip event, or to enable automatic reset for unattended or remote installations where self-recovery is preferred.
Key Features
- Wide current adjustment range: 13–52 amps
- Three-phase motor overload protection
- Manual and automatic reset modes for operational flexibility
- Protects against overload, phase loss, and phase imbalance
- Compact, panel-mount design for easy integration into motor control centers and starter assemblies
- Siemens quality construction for long service life in demanding HVAC environments
Typical Applications
- Three-phase HVAC motor protection
- Commercial and industrial motor control centers
- Compressor and fan motor starter assemblies
- Pump motor protection circuits
Product Specifications
- Brand: Siemens
- Model / SKU: 3UB81334FW2
- Current Range: 13–52 Amps
- Phase: 3-Phase
- Reset Type: Manual / Automatic
Trust the Siemens 3UB81334FW2 to provide reliable, adjustable overload protection for your three-phase motor applications. Order from Jackson Systems for fast fulfillment and expert HVAC support.
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