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Siemens 3RU2116-1AB1 Thermal Overload Relay - 1.1-1.6A Stand-alone

Siemens 3RU2116-1AB1 Thermal Overload Relay for stand-alone use.

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ManufacturerSiemens

Part number3RU2116-1AB1

Type Thermal Overload Relay

Manufacturer Siemens

Series SIRIUS 3RU21

Part Number 3RU2116-1AB1

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Thermal Overload Protection Motor Protection Stand-alone Installation Screw Terminals Manual/Automatic Reset Class 10 Trip Class

Product description

The Siemens 3RU2116-1AB1 is a thermal overload relay featuring an adjustable current range of 1.1 to 1.6 A, designed for Class 10 motor protection. A key distinction is its capability for stand-alone installation, allowing for greater flexibility in control panel design. It utilizes screw terminals for main and auxiliary circuits and supports both manual and automatic reset functions.

This relay is suitable for applications where direct contactor mounting is not feasible or desired, such as in custom control panels or retrofitting existing installations. It provides essential thermal protection for motors in various industrial machinery, pumps, and fans.

Stanlo Automation, a veteran-owned distributor, offers the Siemens 3RU2116-1AB1 surplus overload relay. We are dedicated to providing high-quality automation components and reliable service to ensure your operations run smoothly.

Technical specifications

Type	Thermal Overload Relay
Manufacturer	Siemens
Series	SIRIUS 3RU21
Part Number	3RU2116-1AB1
Current Range	1.1-1.6 A
Size	S00
Trip Class	Class 10
Mounting	Stand-alone Installation
Reset	Manual/Automatic
Main Circuit Terminals	Screw
Auxiliary Circuit Terminals	Screw

Common applications

Motor Control

Pump Control

Conveyor Systems

HVAC Equipment

Industrial Machinery

Manufacturing Automation

Compatible systems

Siemens 3RT Contactors (optional)

Also known as

Siemens 3RU21161AB1 SIRIUS 3RU21 Overload Relay Siemens Motor Protection Relay Stand-alone Overload Relay

Replaces / compatible with

Can be used in place of or alongside Siemens contactors for motor protection where stand-alone mounting is required. Compatible with Siemens control system accessories.

Technical note

Expert tip

When used in a stand-alone configuration, ensure proper wiring and enclosure to maintain the environmental protection rating and electrical safety standards.

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Frequently asked questions

What is the primary advantage of the Siemens 3RU2116-1AB1 overload relay over contactor-mounted versions?

The primary advantage of the Siemens 3RU2116-1AB1 is its design for stand-alone installation. This offers greater flexibility in panel layout and can be used independently or in conjunction with a contactor, unlike relays that are exclusively designed for direct contactor mounting.