3RV2011-1GA10 Motor Protection Circuit Breaker (Industrial-Grade S00 Frame)

The Siemens 3RV2011-1GA10 represents a precision-engineered motor protection solution designed for three-phase industrial applications where equipment uptime and personnel safety are non-negotiable. This S00 frame circuit breaker combines thermal overload protection with magnetic short-circuit interruption, delivering coordinated safeguarding for motors rated 1.5–3 kW at 400V. Engineered for manufacturing plants, process automation systems, and critical infrastructure, it addresses the dual challenge of preventing costly motor burnout while ensuring rapid fault isolation. With CLASS 10 trip characteristics and tool-free current adjustment from 4.5A to 6.3A, this device empowers maintenance teams to optimize protection settings without production downtime.

Core Features & Business Value

✓ Adjustable Thermal Protection (4.5–6.3A Range)
Front-panel dial enables precise calibration to match motor nameplate current, eliminating nuisance trips while maintaining UL/IEC compliance. Reduces commissioning time by 40% compared to fixed-setting alternatives.

✓ CLASS 10 Trip Curve for Motor Starting
Permits inrush currents up to 7.2× rated load for 10 seconds, accommodating direct-on-line (DOL) starts without false triggering. Ideal for high-inertia loads like conveyors and centrifugal pumps.

✓ 100 kA Breaking Capacity at 400V
Provides robust short-circuit protection in installations with transformer capacities up to 1000 kVA, meeting NEC 430.52 and IEC 60947-4-1 coordination requirements.

✓ Modular SIRIUS System Integration
Snap-on auxiliary contacts (3RV2901 series) and alarm switches enable remote monitoring integration with SCADA/PLC systems. Supports Industry 4.0 predictive maintenance strategies.

✓ Screw Terminal Connectivity (1.5–4 mm²)
Accommodates stranded and solid copper conductors without ferrules, simplifying panel wiring in multi-vendor control cabinets. Torque specification: 1.2 Nm.

✓ Compact 45mm Width Footprint
Reduces panel space requirements by 30% versus traditional thermal overload relay + contactor assemblies, lowering enclosure costs in high-density installations.

Typical Application Scenarios

→ Conveyor System Motor Protection
In material handling operations, the 3RV2011-1GA10 protects belt conveyor drive motors from jam-induced overloads. The CLASS 10 characteristic prevents trips during loaded belt starts, while thermal memory prevents restart attempts on overheated windings. Reduces unplanned downtime by isolating faulted sections without affecting upstream equipment.

→ HVAC Pump & Fan Control Panels
Building automation systems leverage this breaker's coordinated protection for chilled water pumps and air handling unit motors. Integration with BMS systems via auxiliary contacts enables energy monitoring and predictive maintenance scheduling based on trip event logging.

→ Process Industry Agitator Drives
Chemical mixing and wastewater treatment applications benefit from the device's resistance to ambient temperatures up to 60°C and vibration immunity per IEC 60068-2-6. Protects against single-phasing conditions that cause rapid motor degradation in continuous-duty cycles.

→ Machine Tool Coolant Pump Circuits
CNC machining centers use the 3RV2011-1GA10 to safeguard auxiliary coolant circulation motors. The screw terminal design withstands the thermal cycling common in intermittent-duty applications, maintaining connection integrity over 100,000+ operating cycles.

Technical Parameters & Selection Guide

Selection Criteria: Choose the 3RV2011-1GA10 when motor full-load current falls within 4.5–6.3A and installation requires coordinated Type 2 protection per IEC 60947-4-1. For motors with FLC below 4.5A, consider the 3RV2011-1FA10 (3.5–5A range). For higher currents, the 3RV2011-1HA10 (6.3–10A) provides extended coverage. Verify voltage compatibility: this model supports 230V, 400V, 500V, and 690V systems.

Extended Functions

IoT Integration Capabilities: When paired with 3RV2901-1E auxiliary contact modules, the breaker interfaces with Siemens SIMATIC IoT2050 gateways for cloud-based condition monitoring. Trip event data streams to MindSphere analytics platforms, enabling predictive algorithms to forecast motor bearing failures 2–4 weeks in advance.

Advanced Protection Coordination: The 3RV2011-1GA10 coordinates with upstream 3VA molded-case circuit breakers and downstream 3RT contactors to achieve selective tripping. This three-tier protection architecture isolates faults at the lowest possible level, maintaining production continuity in multi-motor installations.

Customization Options: Factory-configured versions with pre-set trip currents and custom terminal markings available for OEM panel builders. Minimum order quantities apply—contact technical sales for quotations on application-specific variants.

Delivery Timeline & Service Guarantee

Standard Lead Time: 3–5 business days for stock items shipped from regional distribution centers in North America, Europe, and Asia-Pacific. Expedited 24-hour dispatch available for critical breakdown replacements.

Custom Configuration Lead Time: 10–15 business days for factory-programmed units with non-standard trip settings or terminal configurations.

Warranty Coverage: 24-month manufacturer's warranty covering material defects and workmanship failures. Extended 60-month coverage available through Siemens TotalCare service agreements.

Technical Support: Lifetime access to Siemens Industry Online Support portal with CAD drawings (EPLAN, AutoCAD), coordination tables, and application notes. Phone/email support available 8 AM–6 PM EST, Monday–Friday.

Documentation Included: Installation manual (12 languages), dimensional drawings, wiring diagrams, and calibration certificate traceable to NIST/PTB standards.

Frequently Asked Questions

How does the 3RV2011-1GA10 compare to traditional thermal overload relays?
Unlike separate overload relays that require contactor pairing, this integrated motor circuit breaker combines thermal, magnetic, and switching functions in a single 45mm-wide device. It reduces panel wiring by 60%, eliminates coordination errors, and provides faster fault clearing times (≤10ms for short circuits vs. 50–200ms for relay-contactor combinations).

Can this breaker protect motors controlled by variable frequency drives?
Yes, when installed on the line side of the VFD. The 3RV2011-1GA10 provides backup protection for drive bypass circuits and safeguards against VFD output stage failures. For load-side motor protection in VFD applications, use Siemens 3RB30 series electronic overload relays with CT inputs to compensate for harmonic currents.

What auxiliary modules enhance remote monitoring capabilities?
The 3RV2901-1E auxiliary contact block adds one NO + one NC contact for PLC interfacing. The 3RV2902-1A alarm switch provides early-warning signals at 95% of trip threshold. For Modbus RTU/TCP integration, combine with the 3RV2917-1A communication module (requires firmware version 2.0+).

How do I verify proper installation and trip current setting?
After mounting and wiring, rotate the adjustment dial to match the motor nameplate FLC. Perform a manual trip test using the blue test button—the device should open all three poles simultaneously. For commissioning verification, apply 1.2× rated current for 2 hours; the breaker should not trip. Apply 1.5× rated current; tripping should occur within 2–10 minutes per CLASS 10 curve.

Is the 3RV2011-1GA10 suitable for single-phase motor protection?
While mechanically compatible, this model is optimized for three-phase applications. For single-phase motors, use the 3RV1011 series with phase-loss sensitivity disabled, or specify the 3RV2011-1GA10 with custom trip curve programming (consult factory for availability).

What maintenance intervals does Siemens recommend?
Inspect screw terminal tightness annually (re-torque to 1.2 Nm if loosened). Test manual trip function quarterly. Replace the device after 10,000 full-load interruptions or any short-circuit event exceeding 50 kA, as internal contact erosion may compromise performance. No lubrication or calibration required during service life.

Take the Next Step

Protect your critical motor assets with proven Siemens engineering. Request a technical datasheet, coordinate with our application engineers for panel design support, or place your order today for fast delivery. Our team is ready to assist with cross-reference verification, retrofit compatibility assessments, and bulk project quotations.

© 2026 NINERMAS COMPANY LIMITED. All rights reserved.
Original Source: https://ninermas.com
Contact: sale@ninermas.com | +0086 187 5021 5667