Siemens 3RV20314UA10 Motor Starter Protector S2 Class 10

Product Description

The SIEMENS 3RV20314UA10 is a Class 10 motor starter protector (MSP) in an S2 frame size, designed to provide overcurrent and short-circuit protection for three-phase motor branch circuits. This device combines the functions of a circuit breaker and motor overload relay into a single compact unit, reducing panel space and wiring complexity. At Class 10 trip response, it is suited for standard induction motors that reach full speed quickly. Licensed electricians and industrial controls technicians install this device in motor control centers, control panels, and standalone motor branch circuits.

The 3RV20314UA10 is intended for industrial and commercial motor protection applications where a single device must handle both overload and short-circuit duties. It fits into S2-frame accessories and busbar systems, making it compatible with standard Siemens contactor and starter assembly configurations. Typical installations include pump drives, fan motors, conveyor systems, and other three-phase induction motor loads in commercial and light industrial settings.

Key Features

• Class 10 trip characteristic suitable for standard three-phase induction motors
• S2 frame size integrates with compatible Siemens contactor and accessory systems
• Combines overcurrent, overload, and short-circuit protection in one device
• Compact footprint reduces panel wiring and saves DIN rail or panel space
• Sold individually, 1 unit per pack

Compatibility

Designed as an OEM-style motor starter protector for use with S2-frame Siemens motor starter and contactor assemblies in three-phase motor branch circuit applications.

Installation Notes

Installation must be performed by a qualified electrician in accordance with the NEC and all applicable local codes. De-energize and lock out the panel or motor control center before installing or servicing this device. Verify that the motor full-load amperage rating falls within the protector's adjustment range before setting the overload dial. Do not use this device as the sole means of disconnect unless the installation is evaluated and permitted for that configuration.

Technical Specifications

• Frame Size: S2
• Trip Class: Class 10
• Length: 5.787 inches
• Width: 2.441 inches
• Height: 6.575 inches
• Weight: 2.368 pounds
• Quantity per Pack: 1
• UPC: 88762192005

Standard Information

• Brand: SIEMENS
• Manufacturer Part Number: 3RV20314UA10