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Siemens 3RU2116-1KB0 Thermal Overload Relay - 9.0-12.5A

Siemens 3RU2116-1KB0 Thermal Overload Relay for motor protection.

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ManufacturerSiemens

Part number3RU2116-1KB0

Current Setting 9.0-12.5 A

Size S00

Class 10

Mounting Contactor Mounting

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Thermal overload protection Class 10 tripping Contactor mounting Screw terminals Manual/automatic reset Motor protection

Product description

The Siemens 3RU2116-1KB0 is a thermal overload relay designed for reliable motor protection up to 12.5 A. It features a current setting range of 9.0 to 12.5 A and adheres to Class 10 tripping characteristics. This relay is specifically designed for direct mounting onto compatible Siemens contactors.

It provides essential protection against thermal damage caused by overloads, phase failures, and prolonged motor start-ups. The Size S00 designation indicates its compact form factor, suitable for space-optimized control panels. Screw terminals are used for both main and auxiliary circuit connections.

Stanlo Automation, a veteran-owned supplier of surplus industrial automation components, offers the Siemens 3RU2116-1KB0. Ensure your motor applications are protected with quality components available from our stock.

Technical specifications

Current Setting	9.0-12.5 A
Size	S00
Class	10
Mounting	Contactor Mounting
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw
Reset	Manual/Automatic

Common applications

Motor Control Centers

Industrial Machinery

Automation Systems

Large Fans

Pumps

Compressors

Compatible systems

Siemens 3RT contactors (e.g., 3RT2018, 3RT2019)

Also known as

Siemens 3RU2116-1KB0 relay SIRIUS overload relay 12.5A 3RU Series S00 contactor mount

Replaces / compatible with

This overload relay is designed for use with Siemens 3RT contactors and can replace earlier Siemens models within the 9.0-12.5A range for contactor mounting.

Technical note

Expert tip

When selecting an overload relay, always ensure the setting range is appropriate for the motor's nameplate full load ampere (FLA) rating to prevent motor damage and nuisance tripping.

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Frequently asked questions

What is the maximum motor current this Siemens 3RU2116-1KB0 overload relay can protect?

The Siemens 3RU2116-1KB0 overload relay has an adjustable current setting range of 9.0 to 12.5 Amperes. It is suitable for protecting motors with full load amperages within this range, providing reliable thermal protection.