The Siemens 3RU2946-3AA01 is a genuine SIRIUS stand-alone assembly support designed for the independent mounting of 3RU21 thermal overload relays and 3RB30 / 3RB31 electronic overload relays in Size S3. It enables overload relays to be installed separately from contactors, providing greater flexibility in control panel design and simplifying installation in industrial automation systems. The assembly support features screw terminal connections for the main circuit, ensuring secure and reliable electrical connections. It supports both 35 mm DIN rail snap-on mounting and screw mounting, making it suitable for a wide range of panel configurations.

The Siemens 3RU2946-3AA01 is widely used in Motor Control Centers (MCCs), industrial control panels, OEM machinery, switchboards, process industries, and factory automation systems where stand-alone overload relay installation is required. With its durable construction, IP20 front protection, and finger-safe design, it provides reliable performance even in demanding industrial environments. It operates in ambient temperatures ranging from -20°C to +70°C, ensuring dependable operation across various industrial applications.

At SB Smart, Faridabad, we supply 100% genuine Siemens SIRIUS overload relay accessories, Thermal Overload Relays, Electronic Overload Relays, Contactors, Soft Starters, MPCBs, MCCBs, PLCs, HMIs, VFDs, and Industrial Automation Products at competitive prices. We provide GST invoices, expert technical support, bulk order discounts, secure packaging, and fast delivery across Faridabad, Delhi NCR, Mumbai, Pune, Bengaluru, Chennai, Hyderabad, Ahmedabad, Kolkata, and all major cities in India.

Key Features

• Genuine Siemens SIRIUS Accessory
• Model: 3RU2946-3AA01
• Stand-Alone Assembly Support
• Compatible with 3RU21, 3RB30 & 3RB31 Overload Relays
• Suitable for Size S3
• Main Circuit: Screw Terminal
• Independent Overload Relay Mounting
• DIN Rail (35 mm) and Screw Mounting
• IP20 Front Protection
• Finger-Safe Front Design
• Rugged Industrial Construction
• Easy Installation and Maintenance
• Long Service Life

Applications

• Motor Control Centers (MCC)
• Industrial Control Panels
• Electrical Switchboards
• OEM Machinery
• Factory Automation
• Process Industries
• Machine Building
• Power Distribution Panels
• Industrial Automation Systems

Benefits

• Enables independent installation of overload relays
• Simplifies panel design and wiring
• Supports flexible control panel layouts
• Secure screw terminal connections
• Quick DIN rail or screw mounting
• Reliable operation in harsh industrial environments
• Reduces maintenance time
• Genuine Siemens quality for long-lasting performance

Frequently Asked Questions (FAQs)

Q1. What is the Siemens 3RU2946-3AA01 used for?

The 3RU2946-3AA01 is a stand-alone assembly support used to mount Siemens 3RU21, 3RB30, and 3RB31 Size S3 overload relays independently from contactors.

Q2. Which overload relays are compatible with this assembly support?

It is compatible with Siemens SIRIUS 3RU21 thermal overload relays and 3RB30 / 3RB31 electronic overload relays in Size S3.

Q3. What type of mounting does it support?

The assembly support can be installed using 35 mm DIN rail snap-on mounting or screw mounting, providing flexibility for different panel designs.

Q4. What protection rating does it offer?

The 3RU2946-3AA01 provides IP20 front protection with a finger-safe design according to IEC 60529 standards.

Q5. Why buy Siemens 3RU2946-3AA01 from SB Smart Faridabad?

SB Smart, Faridabad supplies 100% genuine Siemens industrial automation products with competitive pricing, GST invoices, expert technical support, bulk order assistance, and fast delivery across India for OEMs, panel builders, contractors, and industrial customers.