Siemens 3RB Overload Relay 1NO + 1NC, 4 A Contact Rating, 50 W, 230 Vac, 3P, SIRIUS

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€ 346,43

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€ 419,18

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RS-stocknr.:
866-5535
Fabrikantnummer:
3RB2056-1FW2
Fabrikant:
Siemens
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Merk

Siemens

Contact Current Rating

4 A

Range

SIRIUS

Pole Configuration

3P

Series

3RB

Mounting Style

Direct Contactor

Power Rating

50 W

Normal State Configuration

1NO + 1NC

Terminal Type

Screw

Reset Method

Automatic, Manual, Remote

Number Of Auxiliary Contacts

2

Width

120mm

Length

120mm

Depth

155mm

Maximum Operating Temperature

+60°C

Minimum Operating Temperature

-25°C

Operating Temperature Range

-25 → +60 °C

Contact Voltage Rating

1 kV ac

Control Voltage

230 Vac

Land van herkomst:
DE

Siemens 3RB Series Overload Relay, 4A Contact Current Rating, 50W Power Rating - 3RB2056-1FW2


This overload relay is designed to provide effective electrical overload protection in various automation and electrical systems, primarily protecting motors and machinery from damage due to excessive current. Its robust construction ensures functionality in challenging environments, making it essential for professionals in automation and electrical sectors.

Features & Benefits


• Offers automatic, manual, and remote reset options for flexibility
• Includes 2 auxiliary contacts for enhanced functionality
• Operates with a control voltage of 230V AC for efficient performance
• Functions effectively within a temperature range of -25 to +60°C
• Utilises screw terminals for straightforward and secure connections

Applications


• Used in direct contactor relay systems for motor protection
• Ideal for machinery that requires high temperature overload protection
• Suitable for automation setups needing efficient electrical overload protection
• Designed for involving 3 pole relay configurations

How can I reset this device after it trips?


It can be reset automatically, manually, or remotely based on your configuration.

What is the maximum current this device can handle?


It supports a contact current rating of up to 4A.

Can it be used with different types of motors?


Yes, it is compatible with various motor types, providing appropriate overload protection.


Siemens 3RN1 Thermistor Relays


3RN1 thermistor relays are a range of thermal protection devices, which when used in conjunction with external PTC thermistors, offer temperature monitoring of electrical drives, transformers and other critical components such as bearings. The 3RN1 range operates on the principle of closed-circuit current and are therefore self monitoring in the event of sensor wire breakage.

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