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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 11A-16A Adjustable Current Range, 16A Contact Rating, 7.5 3RU2116-4AB0

Name: Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 11A-16A Adjustable Current Range, 16A Contact Rating, 7.5 3RU2116-4AB0
Brand: Siemens
SKU: 354928
Price: 86.81 USD
Availability: InStock

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Category Thermal Overload Relay Brand Siemens Condition New

Specifications

Country of Origin	Germany
Brand	Siemens
Length	87mm
Model	3RU2116-4AB0
Depth	73mm
IP Rating	IP65, IP55
Width	45mm
Mount Type	Direct
Series	SIRIUS 3RU2
Power Rating	7.5kW
Maximum Operating Temperature	70°C
Minimum Operating Temperature	-40°C
Terminal type	Screw
Standards/Approvals	CCC, IEC, RoHS, WEEE (2012/19/EU), REACH, CE, UKCA, UL, EAC
Pay online using	Or choose to pay later via bank transfer
RS Stock No.	706-1598Brand: SiemensManufacturers Part No.: 3RU2116-4AB0
Contact Voltage	690V ac
Reset Method	Automatic & Manual
Normal State Configuration	1 NO/1 NC
Relay Contact Current	16A
Number of Auxiliary Contacts	2
Pole and Throw Configuration	3P
FLC Motor Rating	11, 16A
Adjustable Current Range	11 → 16 A

Key Features

The relay features 1 normally open (NO) and 1 normally closed (NC) contact configuration.
It includes an adjustable current range of 11 to 16 amperes for flexible motor protection.
Rated contact current is 16 amperes, suitable for diverse industrial applications.
Power rating is 7.5 kW for three-phase motor control circuits.
Mounting is direct with a 3-pole configuration and a screw terminal type.
Supports both automatic and manual reset methods with an effective selector switch.
Rated operational voltage is up to 690 V AC ensuring compatibility with industrial power systems.
Robust IP65 and IP55 protection against dust and water ingress for harsh environments.

Product Description

Siemens 3RU2116-4AB0 SIRIUS 3RU2 Thermal Overload Relay offers dependable motor protection by detecting and disconnecting on overload conditions within its 11 to 16A adjustable current range. This relay is engineered for industrial, marine, and medical electrical systems where reliable motor circuit safeguarding is critical.

Equipped with a 3-pole design and screw terminals, it ensures firm conductor connections preventing accidental disconnections. It features one normally open (NO) and one normally closed (NC) auxiliary contact for flexible control integration. The unit supports automatic or manual reset via an integrated selector switch, enabling quick recovery after fault clearance.

With a 7.5 kW motor power rating and 16 A contact current rating at up to 690 V AC, this relay suits a variety of three-phase motor installations. Its casing incorporates IP65 and IP55 ratings, making it suitable for demanding environments with exposure to dust and moisture.

The relay operates reliably over a wide temperature spectrum from -40°C to +70°C, supporting use in harsh industrial conditions. Dimensionally compact (87 mm long, 45 mm wide, 73 mm deep), it fits efficiently in control panels.

This Siemens thermal overload relay meets international standards including CCC, IEC, RoHS, WEEE, REACH, CE, UKCA, UL, and EAC certifications. Manufactured in Germany, it reflects high-quality engineering and durability.

The relay’s screw terminals prevent conductor loosening or disconnections. Automatic/manual reset choice allows flexible fault response management. IP65/IP55 protection ensures performance despite dust and water exposure.

Wide operating temperature range supports diverse industrial environments. Compact size enables easy integration within control panels. Meets multiple international safety and compliance standards. Optimized for protecting three-phase motors up to 7.5 kW power.

Adjustable current range allows precise overload settings between 11 and 16 amperes. Robust construction increases operational reliability and equipment lifespan.

Choose the Siemens 3RU2116-4AB0 Thermal Overload Relay for efficient, reliable motor protection in industrial automation, manufacturing, HVAC systems, water treatment plants, and marine applications. Explore more products in our Automation & Control Gear category at EnvMart.

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Frequently Asked Questions

The Siemens SIRIUS 3RU2 thermal overload relay has an adjustable current range of 11 to 16 amperes.

It features a rated contact current of 16 amperes, suitable for various industrial applications.

The power rating for this relay is 7.5 kW, making it suitable for three-phase motor control circuits.

This thermal overload relay measures 87 mm in length, 45 mm in width, and 73 mm in depth.

It supports direct mounting with a 3-pole configuration and features screw terminals for secure connections.

The maximum operational voltage for the Siemens SIRIUS 3RU2 relay is up to 690 V AC.

It has IP65 and IP55 protection ratings, providing resistance against dust and water ingress.

The relay supports both automatic and manual reset methods, allowing flexible fault response management.

This model features a normal state configuration of 1 normally open (NO) and 1 normally closed (NC) contact.

The relay operates effectively over a wide temperature range from -40°C to +70°C.

It meets several international standards including CCC, IEC, RoHS, WEEE, REACH, CE, UKCA, UL, and EAC certifications.

This thermal overload relay is optimized for protecting three-phase motors in industrial automation, manufacturing, HVAC systems, and marine applications.