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Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 1.8-2.5 A Adjustable Current Range 1.5 kW Power Rating 3RU2126-1CB0

Name: Siemens SIRIUS 3RU2 Thermal Overload Relay 1 NO/1 NC 1.8-2.5 A Adjustable Current Range 1.5 kW Power Rating 3RU2126-1CB0
Brand: Siemens
SKU: 354931
Price: 93.97 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	3RU2126-1CB0
Depth	73mm
IP Rating	IP20
Width	45mm
Mount Type	Direct
Series	SIRIUS 3RU2
Power Rating	1.5kW
Maximum Operating Temperature	70°C
Minimum Operating Temperature	-40°C
Terminal type	Screw
Standards/Approvals	IEC, EAC, WEEE (2012/19/EU), REACH, CE, UKCA, RoHS, UL, CCC
Pay online using	Or choose to pay later via bank transfer
RS Stock No.	706-1601Brand: SiemensManufacturers Part No.: 3RU2126-1CB0
Contact Voltage	690V ac
Reset Method	Automatic & Manual
Normal State Configuration	1 NO/1 NC
Relay Contact Current	2.5A
Number of Auxiliary Contacts	2
Pole and Throw Configuration	3P
FLC Motor Rating	1.8, 2.5A
Adjustable Current Range	1.8 → 2.5 A

Key Features

Adjustable current range from 1.8 A to 2.5 A ensures precise motor protection.
Integrated auxiliary contacts with 1 normally open and 1 normally closed configuration.
Suitable for motor power ratings up to 1.5 kW with 3-pole configuration.
Supports automatic and manual reset methods for flexible operation.
Mounts directly with screw-type terminals for secure installation.
Rated operational voltage up to 690 V AC with IP20 front protection.
Wide ambient operating temperature from -40°C to 70°C for reliable performance.
Complies with IEC, CE, UL, RoHS, and other industrial standards for quality assurance.

Product Description

Siemens 3RU2126-1CB0 SIRIUS 3RU2 Thermal Overload Relay offers reliable motor protection by detecting overload conditions in three-phase circuits. It features an adjustable current range of 1.8 to 2.5 A and a power rating of 1.5 kW, ideal for small motor applications.

The device provides 1 normally open and 1 normally closed auxiliary contact for effective status signalling. It supports both automatic and manual reset modes, allowing operational flexibility in industrial control systems.

Designed for direct mounting with screw terminals, it accepts solid or stranded conductors from 1 mm² up to 10 mm². The relay supports a rated operational voltage up to 690 V AC and has an IP20 finger-safe front protection, ensuring user safety.

Operating reliably in ambient temperatures ranging from -40°C to 70°C, this thermal overload relay is suitable for harsh industrial environments. It conforms to international standards such as IEC, CE, UL, RoHS, and others, demonstrating compliance with safety and environmental requirements.

Applications include motor starter assemblies, HVAC equipment automation, and industrial control panels that require precise motor overload protection and reliable auxiliary feedback signals.

Adjustable current range from 1.8 A to 2.5 A ensures precise motor protection. Integrated auxiliary contacts with 1 normally open and 1 normally closed configuration. Suitable for motor power ratings up to 1.5 kW with 3-pole configuration.

Supports automatic and manual reset methods for flexible operation. Mounts directly with screw-type terminals for secure installation. Rated operational voltage up to 690 V AC with IP20 front protection. Wide ambient operating temperature from -40°C to 70°C for reliable performance.

Complies with IEC, CE, UL, RoHS, and other industrial standards for quality assurance.

This product is sourced from Siemens and is suitable for industrial, manufacturing, HVAC, and automation applications. Explore more Thermal Overload Relays and related control gear at EnvMart.

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Frequently Asked Questions

The adjustable current range of this thermal overload relay is from 1.8 A to 2.5 A, allowing for precise motor protection.

This model has a power rating of 1.5 kW, making it suitable for small motor applications.

The dimensions of this relay are 87 mm in length, 73 mm in depth, and 45 mm in width.

The maximum operating temperature for this relay is 70°C, while the minimum operating temperature is -40°C.

This unit supports both automatic and manual reset methods, providing flexibility in operation.

It features 1 normally open and 1 normally closed auxiliary contact configuration for effective status signaling.

The rated operational voltage of this relay is up to 690 V AC, ensuring compatibility with various industrial applications.

This relay has an IP20 rating, providing finger-safe front protection for user safety.

It is designed for direct mounting with screw-type terminals, accommodating solid or stranded conductors from 1 mm² to 10 mm².

The relay complies with several standards including IEC, CE, UL, RoHS, and others, ensuring quality assurance and safety compliance.

The normal state configuration of the relay's contacts is 1 normally open (NO) and 1 normally closed (NC).

This relay is suitable for applications such as motor starter assemblies, HVAC equipment automation, and industrial control panels requiring precise motor overload protection.