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Siemens 3RB2066-1MC2 SIRIUS Overload Relay - 160-630A, Class 10E

Siemens 3RB2066-1MC2 SIRIUS overload relay for motor protection.

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ManufacturerSiemens

Part number3RB2066-1MC2

Current Setting 160...630 A

Size S10/S12

Class 10E

Reset Manual/Automatic

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Motor protection Adjustable current setting Class 10E tripping Manual/Automatic reset Busbar connection

Product description

The Siemens 3RB2066-1MC2 is a high-performance overload relay designed for motor protection. It features a wide current setting range of 160 to 630 A and operates with Class 10E tripping characteristics. This relay is suitable for Size S10/S12 contactors and offers both manual and automatic reset options, with main circuit connections via busbar and auxiliary circuits using screw terminals.

This overload relay is ideal for various industrial applications, including motor control centers, pump systems, and conveyor belts where reliable motor protection is critical. It ensures safe operation by preventing damage from overcurrent conditions, safeguarding valuable equipment and minimizing downtime.

Source your Siemens 3RB2066-1MC2 overload relay from Stanlo Automation, a veteran-owned distributor committed to providing quality surplus industrial parts. We ensure competitive pricing and reliable delivery for your automation needs.

Technical specifications

Current Setting	160...630 A
Size	S10/S12
Class	10E
Reset	Manual/Automatic
Main Circuit Connection	Busbar
Auxiliary Circuit Connection	Screw Terminal

Common applications

Motor control

Industrial automation

Pump control

Conveyor systems

Machine tools

Compatible systems

Compatible with Siemens S10/S12 contactors

Also known as

Siemens 3RB2066-1MC2 overload relay SIRIUS overload relay

Replaces / compatible with

Replaces older Siemens overload relay models in the S10/S12 size range requiring busbar connection.

Technical note

Expert tip

Ensure proper busbar connection for reliable current transfer and optimal performance of the 3RB2066-1MC2 overload relay.

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Frequently asked questions

What is the current setting range for the Siemens 3RB2066-1MC2 overload relay?

The Siemens 3RB2066-1MC2 overload relay has an adjustable current setting range from 160 to 630 Amperes. This wide range allows for precise protection of motors with varying power requirements.