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Siemens 3RB2066-1MF2 SIRIUS Overload Relay - 160-630A, Spring Terminal

Siemens 3RB2066-1MF2 SIRIUS overload relay with spring terminals.

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ManufacturerSiemens

Part number3RB2066-1MF2

Current Setting 160...630 A

Size S10/S12

Class 10E

Reset Manual/Automatic

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Motor protection Adjustable current Class 10E tripping Manual/Automatic reset Spring-type terminals

Product description

The Siemens 3RB2066-1MF2 is an overload relay for motor protection, featuring a current setting range of 160 to 630 A and Class 10E tripping performance. Designed for Size S10/S12 contactors, it supports both manual and automatic reset. The main circuit connects via busbar, while the auxiliary circuit utilizes convenient spring-type terminals for quick and secure wiring.

This relay is suitable for demanding applications in industrial automation, including motor control panels, material handling systems, and machinery requiring robust motor safeguarding. Its spring terminals offer ease of installation and maintenance in various environments.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the Siemens 3RB2066-1MF2. We provide dependable access to essential automation components with competitive pricing and reliable service.

Technical specifications

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

Common applications

Motor control

Industrial machinery

Material handling

Automation systems

Pump stations

Compatible systems

Compatible with Siemens S10/S12 contactors

Also known as

Siemens 3RB2066-1MF2 relay SIRIUS overload relay

Replaces / compatible with

A direct replacement for Siemens overload relays in the S10/S12 series that require spring-type auxiliary terminals.

Technical note

Expert tip

The spring-type terminals on the 3RB2066-1MF2 offer vibration resistance and quick connection for control wiring, simplifying installation.

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Frequently asked questions

What type of auxiliary circuit connection does the Siemens 3RB2066-1MF2 overload relay use?

The Siemens 3RB2066-1MF2 overload relay features spring-type terminals for its auxiliary circuit connections. This provides a secure and efficient wiring solution for control circuits.