Siemens 3UB85336FW2 Overload Relay

Product Description

The SIEMENS 3UB85336FW2 is an overload relay designed to protect motors and electrical loads from sustained overcurrent conditions. Overload relays monitor current draw in motor circuits and trip when current exceeds the set threshold, preventing motor winding damage and equipment failure. This unit is installed by licensed electricians and industrial maintenance technicians as part of motor starter assemblies in commercial and industrial control panels. The package dimensions are 4.843 x 4.646 x 2.677 inches and the unit weighs 0.772 pounds, making it a compact, panel-mount component suitable for tight enclosure installations.

The 3UB85336FW2 is suited for motor protection applications in commercial and industrial environments. Typical installations include motor control centers, combination starters, and standalone contactor assemblies where overload protection is required by NEC and local electrical codes. This relay type is commonly found in HVAC compressor circuits, pump motor controls, conveyor systems, and other continuous-duty motor loads where reliable overcurrent protection is critical to uptime and equipment longevity.

Key Features

• Provides overload protection to prevent motor winding damage from sustained overcurrent
• Compact form factor at 4.843 x 4.646 x 2.677 inches for panel and enclosure mounting
• Lightweight construction at 0.772 pounds for easy handling during installation
• Designed for integration into motor starter and contactor assemblies
• Suitable for continuous-duty commercial and industrial motor protection applications

Compatibility

Designed as an OEM-style overload relay for use in commercial and industrial motor control and starter assemblies requiring overcurrent protection.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the panel or motor control center before removing or installing any overload relay. Verify the relay trip class and current range are appropriate for the motor being protected before placing the circuit back in service. Do not bypass or jumper the overload relay under any circumstances.

Technical Specifications

• Length: 4.843 inches
• Width: 4.646 inches
• Height: 2.677 inches
• Weight: 0.772 pounds
• UPC: 66264389733

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3UB85336FW2