Siemens, SIRIUS Thermal Overload Relay 1 NO/1 NC, 1.8 to 2.5 A F.L.C, 2.5 A Contact Rating, 0.75 kW 3P

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RS Stock No.:
706-1544
Distrelec Article No.:
301-39-549
Mfr. Part No.:
3RU2116-1CB0
Manufacturer:
Siemens
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Brand

Siemens

Product Type

Thermal Overload Relay

FLC Motor Rating

1.8 to 2.5 A

Relay Contact Current

2.5 A

Series

SIRIUS

Mount Type

Direct

Power Rating

0.75kW

Pole and Throw Configuration

3P

Terminal Type

Screw

Normal State Configuration

1 NO/1 NC

IP Rating

IP65, IP55

Reset Method

Automatic & Manual

Number of Auxiliary Contacts

2

Minimum Operating Temperature

-40°C

Width

45 mm

Adjustable Current Range

1.8 to 2.5 A

Maximum Operating Temperature

70°C

Length

87mm

Contact Voltage

690V ac

Standards/Approvals

WEEE (2012/19/EU), RoHS, CCC, CE, IEC, UKCA, UL, REACH, EAC

Depth

70mm

COO (Country of Origin):
DE

Siemens SIRIUS 3RU2 Series Thermal Overload Relay, 2.5A Contact Current Rating, 0.75kW Power Rating - 3RU2116-1CB0


This thermal overload relay is essential for protecting motors from overheating and damage caused by excessive current. It ensures operational safety and reliability in automation and electrical applications. Designed for efficient performance, it accommodates a broad range of current ratings and includes features that simplify monitoring and maintenance of electrical systems.

Features & Benefits


• Designed with a 3P pole configuration for versatile Applications

• Supports both automatic and manual reset methods

• Suitable for motors with a full load current of 1.8 to 2.5A

• Equipped with screw terminals for secure electrical connections

• Features two auxiliary contacts for enhanced functionality

Applications


• Compatible with direct contactors for seamless integration

• Utilised in industrial machinery for effective motor protection

• Applicable in HVAC systems to prevent motor overheating

• Used in conveyors to safeguard against electrical faults

How does the reset work after an overload condition?


The relay can be reset automatically or manually, offering flexibility in operation.

Can it handle different types of motors?


Yes, it is suitable for various motor types within the 1.8 to 2.5A rating.

What are the installation requirements for this relay?


It is designed for direct mounting, requiring minimal space and straightforward wiring.

Is there a way to check the status of the relay?


The two auxiliary contacts can monitor the operational status.

What is the significance of the temperature range specified?


The specified temperature range ensures reliable performance under diverse climatic conditions, enhancing safety and longevity.

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