Siemens Industrial Controls 3RB3016-1PB0 Relay

The Siemens Industrial Controls 3RB3016-1PB0 Relay is a high-performance 1-4amp solid state overload designed for precise motor protection in demanding industrial environments. Built as part of the SIRIUS 3RB30 series, this Size S00 electronic overload relay offers superior accuracy compared to standard thermal units, featuring Class 10 tripping characteristics for inverse-time delayed protection. This unit is engineered for direct mounting to 3RT201 contactors, ensuring a compact and reliable footprint in your control cabinet. It provides critical protection against overload, phase failure, and phase unbalance, self-monitoring its own internal electronics to maintain system integrity. With an adjustable current setting range of 1 to 4 amps and screw terminal connections, this relay simplifies inventory by covering multiple motor sizes. The integrated manual-automatic reset and switch position indicator provide technical feedback necessary for rapid troubleshooting on the job site.

Key Benefits for Contractors:

• Broad 1-4A Adjustment Range: Reduces the number of individual variants needed for different motor loads.
• SIRIUS System Compatibility: Seamlessly integrates with Siemens S00 contactors via direct-mount screw terminals.
• Advanced Motor Safety: Built-in phase loss protection and unbalance detection prevent premature motor burnout.
• Versatile Reset Functions: Choice between manual, automatic, and remote reset modes to suit specific application logic.
• Low Power Loss: Optimized electronic design reduces heat generation within the enclosure for improved component longevity.

Common Questions & Support:

Is this relay compatible with 3RT10 series contactors?
The 3RB3016-1PB0 is specifically designed for the SIRIUS 3RT201 series (Size S00). Always verify the frame size and mounting configuration before installation.

What is the difference between Class 10 and Class 20 tripping?
This Class 10 relay is designed for standard motor startups, tripping within 10 seconds at 6x the set current. It is ideal for most HVACR and industrial pump applications.

Does this unit require an external power supply?
No, the Siemens 3RB3016-1PB0 features an internal power supply derived from the main circuit, simplifying control wiring.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.