Siemens Industrial Controls 3RV1915-1AB Side Feeder

The Siemens 3RV1915-1AB is a specialized 3-phase, 2-line side feeder designed for professional industrial control systems. Engineered for high-efficiency power distribution, this line-side busbar allows for the seamless connection of two SIRIUS 3RV motor starter protectors (MSP) or circuit breakers within a single assembly. Featuring a precise 45mm modular spacing, this feeder eliminates the need for complex individual wiring in the control cabinet, significantly reducing installation time while maintaining a clean, professional layout. It is compatible with S00 and S0 frame sizes, supporting operational currents up to 63 Amms and rated for 690V applications, making it a staple for contractors managing 3-phase motor protection arrays.

Constructed with high-conductivity materials and featuring IP20 touch protection, this fork-shape connection busbar ensures maximum safety for service technicians by providing finger-safe protection during vertical contact from the front. The 3RV1915-1AB is specifically tailored for screw terminal connections and is ideal for Group Installation per NEC 430-53(C), where multiple MSPs are installed under a single primary branch circuit protection device. Its robust design is built to withstand short-circuit stresses typical in heavy-duty industrial environments, ensuring long-term reliability in HVACR and manufacturing control panels.

Key Benefits

• Streamlined Power Distribution: Connects two 3-phase circuit breakers or MSPs side-by-side, reducing cabinet footprint and wiring clutter.
• High Amperage Capacity: Rated for a 63A operational current, suitable for demanding motor control applications.
• Enhanced Safety: Integrated finger-safe touch protection (IP20) meets strict IEC 60529 standards to prevent accidental contact.
• Direct Compatibility: Optimized for Siemens SIRIUS 3RV2 and 3RV1 series motor starter protectors in S00 and S0 sizes.
• Modular Efficiency: Standard 45mm pitch ensures perfect alignment with standard mounting rails and DIN rail components.

Common Questions

Can I use this busbar with side-mounted auxiliary switches?
Standard use of the 3RV1915-1AB busbar typically requires motor starter protectors to be used without side-mounted accessories like auxiliary switches or undervoltage releases if they exceed the 45mm spacing. For units with 9mm or 18mm wide auxiliary contacts, please verify the specific modular spacing requirements before installation.

Is this feeder suitable for 3RV11 motor starter protectors?
No, the 3RV1915 series busbars are generally not compatible with 3RV11 motor starter protectors that feature overload relay functions. They are primarily designed for 3RV10 and 3RV20 series units with screw terminals.

Can I extend this busbar to connect more than two breakers?
While this specific model is for 2 connections, extensions are often possible by rotating an additional busbar 180 degrees and clamping the tags under the terminals of the last device, provided the total current does not exceed the 63A rating.

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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.