Siemens 3RV2011-1DA10 — Motor Protection Circuit Breaker Guide

By Abdullah Zahid
12 min read
Siemens 3RV2011-1DA10 S00-frame motor protection circuit breaker with manual rotary handle for three-phase industrial motor applications

Siemens 3RV2011-1DA10 Circuit-Breaker SZ S00, For Motor Protection, CLASS 10, A-Release 2.2...3.2A, N-Release 42A, Screw Connection, Standard Switching Capacity

When a controls engineer is specifying motor protection for a three-phase AC motor in the 2.2 to 3.2 A full-load current range at up to 690 VAC, the Siemens 3RV2011-1DA10 is a common candidate — and for good reason. This S00-frame motor protection circuit breaker integrates thermal overload, instantaneous short-circuit release at 42 A, phase-failure detection, and under-voltage protection in a single screw-terminal device with a manual rotary handle that satisfies lockout-tagout requirements without a separate isolation switch. Before ordering, the one decision that matters most is confirming your motor's full-load amperage at the application voltage lands inside the 2.2 to 3.2 A adjustment range — every other check follows from there.

If you have already confirmed this is the correct part, check current pricing and availability for the Siemens 3RV2011-1DA10 at LeadTime.ca — ships worldwide.

Who Should Buy the Siemens 3RV2011-1DA10 — and Who Shouldn't

This device is the right choice when all of the following are true for your application:

  • Your motor's full-load current at the application voltage (480 V, 525 V, or 690 VAC) falls within the 2.2 to 3.2 A adjustable overload range.
  • Your system short-circuit level at the motor load point does not exceed 10 kA at 690 VAC — the rated switching capacity of this device.
  • The field installation requires screw-type terminal connections; push-in or PCB terminal variants are not suitable here.
  • The supply is three-phase AC — the 3RV2011-1DA10 is a 3-pole device and is not appropriate for single-phase motor circuits.
  • Manual local disconnection via the rotary handle is acceptable; no remote electronic trip or communication interface is needed.
  • Panel space accommodates the S00 frame footprint, and the operating environment falls within the -20 to +60 C rated range.

If your motor FLA falls above 3.2 A, the 3RV2012-1DA10 (6.3 to 10 A range) is the correct next step. If your application requires remote trip capability, datalogging, or fieldbus communication, evaluate the 3RV2024 series instead.

On this page:

What the Siemens 3RV2011-1DA10 Actually Does in a Motor Circuit

The 3RV2011-1DA10 is a manual motor protection circuit breaker from the Siemens SIRIUS family, designed specifically for three-phase AC motor circuits operating up to 690 VAC. Its role in the system is to serve as the primary protective device between the motor supply and the motor load — eliminating the need to wire a separate thermal overload relay alongside a manual motor starter or contactor combination.

Four protection functions are integrated in the single S00-frame body: thermal overload protection with an adjustable release threshold spanning 2.2 to 3.2 A, an instantaneous short-circuit release that trips at 42 A, phase-failure detection that responds to a missing or severely unbalanced phase, and under-voltage protection. The CLASS 10 trip characteristic means the device responds quickly enough to protect motors in applications where phase imbalance or cavitation-induced load spikes are a realistic operating condition.

The manual rotary handle is not simply a convenience feature — it serves as a local disconnection means that meets IEC 60204-32 and ANSI safety requirements, and the handle's padlock provision supports lockout-tagout procedures without requiring an additional isolation switch in the panel. The base unit ships with screw-type main circuit terminals and no pre-installed auxiliary contacts; auxiliary contact modules are available as a separate add-on if a motor-run signal to a PLC or alarm output to a plant management system is needed.

Typical System Architecture for S00 Motor Protection

The 3RV2011-1DA10 sits directly in the power path between the upstream branch circuit and the motor load, acting as the single protective and disconnecting element at the motor branch level.

  • Upstream: three-phase distribution panel or MCC bucket feeding branch circuit at up to 690 VAC, with system fault level at or below 10 kA at that voltage.
  • DIN rail or panel-mounted 3RV2011-1DA10 receiving supply on terminals 1/L1, 3/L2, 5/L3 via screw connections, typically with 1.5 to 2.5 mm² copper conductors.
  • Output terminals 2/T1, 4/T2, 6/T3 feeding motor load directly, or through an optional downstream contactor if remote switching is required in addition to local protection.
  • Optional auxiliary switch module, when fitted, providing NO/NC contacts for status signaling to a PLC digital input or plant monitoring system.
  • Motor load: three-phase AC motor with FLA at application voltage confirmed to fall within the 2.2 to 3.2 A adjustment range.

Industries and Applications Where the 3RV2011-1DA10 Gets Specified

Pump motor protection is one of the most common deployments for this device. A motor rated in the 2.2 to 3.2 A range at 690 VAC driving a pump in a water treatment or process plant benefits from the phase-failure detection, which responds to cavitation-induced phase imbalance before thermal damage accumulates in the winding.

On conveyor production lines with multiple synchronized drives, the 3RV2011-1DA10 is often selected as a standardized protection device across every motor station, simplifying spare-parts inventory and maintenance training. Each motor circuit gets identical protection hardware, and the manual handle on each unit gives maintenance technicians a clear, physically visible isolation point during servicing.

In high-voltage retrofit projects, the 3RV2011-1DA10 replaces ageing separate overload relays and motor starters in legacy 690 VAC distribution switchgear, reducing panel wiring complexity while maintaining the same protection coverage. Machine tool spindle applications also appear in the specification history for this device — the CLASS 10 trip characteristic avoids nuisance shutdowns during normal acceleration while still responding to sustained overloads.

Remote site installations where no remote monitoring infrastructure exists are a natural fit for the manual version, since the rotary handle provides the full protective and isolation function without any communications wiring requirement.

Application Typical Deployment
Pump motor protection 690 VAC three-phase pump circuit; phase-failure detection for cavitation-induced imbalance
Conveyor line drives Multiple standardized motor stations on production line; unified spare parts and maintenance
High-voltage motor retrofit Replacing separate overload relays in legacy 690 VAC switchgear with integrated MPCB
Machine tool spindle Precision motor requiring sensitive CLASS 10 overload detection without nuisance trips
Remote site isolation Manual rotary handle provides full disconnection without remote monitoring infrastructure
HVAC fan motors Compact S00 frame in tight panel; integrated protection replaces separate thermal relay and starter

Key Electrical and Environmental Specifications

Parameter Specification
Rated Voltage (AC-3) 690 VAC
Adjustable Overload Release 2.2 to 3.2 A
Instantaneous Short-Circuit Release 42 A
Switching Capacity at 690 VAC 10 kA
Full-Load Current (UL/CSA at 480 V) 3.2 A
Number of Poles 3
Terminal Type Screw-type
Protection Class IP20 (front and terminal)
Operating Temperature Range -20 to +60 C
Certifications UL/CSA (File E190233), IEC 60947-4-1, DIN EN 81346-2

Full technical specifications are available on the product page at LeadTime.ca.

3RV2011-1DA10 vs 3RV2012-1DA10 vs 3RV2024: Which One Do You Actually Need?

Feature 3RV2011-1DA10 3RV2012-1DA10 3RV2024 Series
Overload Range 2.2 to 3.2 A 6.3 to 10 A Electronic (configurable)
Instantaneous Release 42 A 100 A Electronic trip
Frame Size S00 S0 Varies
Trip Class CLASS 10 CLASS 10 CLASS 10
Communication None None Modbus/CANopen
Datalogging No No Yes
Manual Disconnection Yes (rotary handle) Yes (rotary handle) Yes
Auxiliary Contacts (Base Unit) None (optional module) None (optional module) Integrated options
Typical Lead Time Standard stock Standard stock Longer; confirm before ordering
Relative Cost Lower Lower Higher

Direct substitution between these variants is not possible — a current rating mismatch will cause either nuisance trips or inadequate motor protection. If your motor's FLA at application voltage sits squarely in the 2.2 to 3.2 A range and manual control is acceptable, the 3RV2011-1DA10 is the correct choice — check current availability and pricing at LeadTime.ca.

Expert Verdict: Honest Assessment for Procurement Teams

The 3RV2011-1DA10 earns its place in standardized motor protection panels because it genuinely eliminates a wiring and commissioning step. Combining thermal overload, short-circuit, phase-failure, and under-voltage protection in a single S00-frame device with a screw-terminal connection reduces both panel footprint and the number of individual components a technician needs to understand. The CLASS 10 trip characteristic is appropriate for the majority of industrial motor applications in this current range, and the manual rotary handle providing lockout-tagout compliance without additional hardware is a meaningful practical advantage on busy maintenance floors. The UL/CSA certification under File E190233 and IEC 60947-4-1 compliance make documentation for quality audits straightforward.

Where the 3RV2011-1DA10 has real limits: the base unit ships with no auxiliary contacts, so any application requiring a motor-run status signal to a PLC or a fault alarm output will need the auxiliary switch module ordered separately — this is a common ordering oversight that delays commissioning. The device also has no remote trip capability and no datalogging; plants moving toward predictive maintenance programs or requiring fieldbus integration should evaluate the 3RV2024 series instead and budget for the longer lead time and higher unit cost. And the current range is narrow — if your motor FLA is 3.5 A or above, the 3RV2011-1DA10 is the wrong part regardless of panel standardization preference. The 3RV2012-1DA10 at 6.3 to 10 A is the appropriate next step up.

From a procurement standpoint, this is a standard-stock item at major industrial automation distributors with normal availability in the 5 to 10 business day range. High-volume orders at 50 or more units can attract OEM bulk pricing. For applications where the 3RV2011-1DA10 replaces a separate thermal relay and contactor combination, the labor savings on panel assembly and wiring typically offset the device cost premium on a per-panel basis. If this matches your motor circuit requirements, view current stock and pricing for the 3RV2011-1DA10 at LeadTime.ca.

For volume pricing, build schedule planning, or to confirm lead time before committing to a production order, contact the LeadTime.ca team directly — we ship worldwide.

Wiring and Installation Overview

  • Main circuit connections use six screw terminals: supply enters on 1/L1, 3/L2, 5/L3 and motor load connects on 2/T1, 4/T2, 6/T3; rated for 690 VAC three-phase AC, with 1.5 to 2.5 mm² copper conductors recommended for the 3.2 A rated current at 690 VAC.
  • Screw terminals should be tightened to 1.5 to 2.0 N·m — hand-tight plus approximately one quarter turn with a wrench; over-tightening risks terminal damage and under-tightening causes resistance heating at connections.
  • Maintain minimum clearance around live parts: 50 mm upward and downward, 30 mm to each side; forward and backward clearance is 0 mm per the datasheet dimensional references.
  • The manual rotary handle provides local disconnection compliant with IEC 60204-32; the padlock provision on the handle enables operator lockout-tagout without any additional isolation hardware.
  • If an auxiliary switch module is added for PLC status signaling or alarm output, route control wiring in a separate conduit from the main circuit conductors to avoid noise coupling into the control circuit.

Compatible Modules and System Expansion

The 3RV2011-1DA10 base unit supports optional add-on modules within the SIRIUS product family. If your application requires signaling beyond the base device, the following expansion options are relevant:

  • Auxiliary switch module: provides NO and NC contacts rated up to 500 VAC for motor-run status output to a PLC digital input or alarm signaling to a plant management system; this module must be specified and ordered separately — it is not included with the base unit.
  • The base unit's S00 frame is dimensionally compatible with the SIRIUS accessory ecosystem, allowing the auxiliary module to be added without replacing the main device.

Wrong-Part Prevention Checklist Before You Order

Run through every item on this checklist before submitting a purchase order for the 3RV2011-1DA10. Each check corresponds to a real mismatch scenario that causes return shipments, commissioning delays, or protection failures in the field:

  1. Confirm motor nameplate FLA at application voltage (480 V, 525 V, 690 V); ensure 2.2-3.2 A range contains operating point.
  2. Verify system short-circuit level does not exceed 10 kA at 690 VAC; check single-line diagram or fault study.
  3. Confirm field installation uses screw terminals; retrofit installations with push-in terminals require different model.
  4. Check three-phase supply confirmed (3-pole device; not suitable for single-phase motors).
  5. Verify manual control acceptable; applications requiring remote/electronic trip need 3RV2024 or contactor combination.
  6. Confirm voltage rating: 690 VAC nameplate; 480 VAC or 400 VAC motors must use correct voltage-rated variant.
  7. Ensure auxiliary switch expansion needed or not; 3RV2011-1DA10 base unit includes no pre-installed auxiliary contacts; add-on module required if signaling needed.

If all seven checks pass, the 3RV2011-1DA10 is the correct device for your circuit. If any item raises a flag, contact the LeadTime.ca team to identify the right variant before ordering — or review the full product details at LeadTime.ca to cross-reference against your application requirements.

Frequently Asked Questions

What happens if my motor FLA is 3.5 A — can I still use the 3RV2011-1DA10?

No. The adjustable overload release on the 3RV2011-1DA10 tops out at 3.2 A. Setting it above the rated motor FLA leaves the motor underprotected against thermal overloads. A motor with a 3.5 A FLA requires a device with a higher current range — the 3RV2012-1DA10, which covers 6.3 to 10 A, is the next variant in the SIRIUS family for larger motors in the S0 frame.

Does the 3RV2011-1DA10 include auxiliary contacts for PLC signaling out of the box?

No. The base unit ships with no pre-installed auxiliary contacts. If you need a motor-run status output to a PLC digital input or a fault alarm signal to a monitoring system, an auxiliary switch module must be specified and ordered separately. This is one of the most common ordering oversights for this device — confirm your signaling requirements before the purchase order is submitted.

Can the 3RV2011-1DA10 be used on a 480 VAC system, or is it only rated for 690 VAC?

The device is rated up to 690 VAC (AC-3), and the UL/CSA full-load current rating at 480 V is 3.2 A. It can be applied on 480 VAC systems, but the critical check is that your motor's FLA at 480 V still falls within the 2.2 to 3.2 A adjustment range. Motor FLA increases as voltage decreases for the same kW rating, so a motor that measures within range at 690 V may exceed 3.2 A at 480 V — recalculate before selecting.

What is the short-circuit rating of the 3RV2011-1DA10, and how do I verify my system qualifies?

The instantaneous short-circuit release threshold is 42 A, and the switching capacity at 690 VAC is 10 kA. To verify your system qualifies, obtain the three-phase short-circuit current value at the motor load point from your site fault study or single-line diagram. If the calculated fault current at that location exceeds 10 kA, the 3RV2011-1DA10 cannot be applied without upstream current-limiting measures — coordinate with your site electrical team before specifying this device.

Is the manual rotary handle sufficient for LOTO compliance, or do I need an additional isolation switch?

The manual rotary handle on the 3RV2011-1DA10 simultaneously isolates all three main circuit poles and includes a padlock provision, meeting IEC 60204-32 and ANSI Z535 safety lockout requirements. For most industrial motor protection applications, no separate isolation switch is required. Confirm with your site safety coordinator that your facility's specific LOTO procedure accepts the integrated handle as the designated energy-isolation point.

What is the electrical endurance of the 3RV2011-1DA10, and how often should it be inspected?

The device is rated for 100,000 electrical switching cycles typical. Annual inspection is recommended: check for corrosion or moisture at terminals, verify the rotary handle moves freely between ON and OFF positions, inspect for burn marks on contact areas, and confirm all mounting fasteners are secure. No lubrication is required. Test the handle by cycling it five times to confirm mechanical freedom, and log the inspection in the site maintenance record.

Why Order from LeadTime.ca

  • LeadTime.ca ships worldwide — procurement teams across North America, Europe, Asia-Pacific, and beyond can source the Siemens 3RV2011-1DA10 through a single supplier contact.
  • Standard-stock items like the 3RV2011-1DA10 ship within normal distributor lead times; the team can confirm current availability and realistic delivery windows before you commit a purchase order.
  • Volume pricing is available for OEM and MRO customers ordering at higher quantities — contact the team directly to discuss pricing tiers for 50+ unit orders.
  • Sourcing hard-to-find configurations or associated accessories (auxiliary switch modules, mounting hardware) can be handled through the same order.
  • Full datasheet and certification documentation (UL/CSA File E190233, IEC 60947-4-1) is available to support quality audit requirements.

At-a-Glance Summary

  • Device: Siemens 3RV2011-1DA10, S00-frame motor protection circuit breaker, SIRIUS family, CLASS 10.
  • Adjustable overload release: 2.2 to 3.2 A — motor FLA at application voltage must fall within this range.
  • Instantaneous short-circuit release: 42 A; switching capacity 10 kA at 690 VAC.
  • Rated voltage: 690 VAC (AC-3); UL/CSA full-load current at 480 V rated at 3.2 A.
  • Integrated protection: thermal overload, short-circuit, phase-failure, and under-voltage — four functions in one S00-frame device.
  • Terminal type: screw-type; 1.5 to 2.5 mm² copper conductors; tighten to 1.5 to 2.0 N·m.
  • Manual rotary handle: local disconnection and LOTO-compliant padlock provision per IEC 60204-32 and ANSI Z535.
  • No auxiliary contacts on base unit — auxiliary switch module must be ordered separately if PLC signaling is required.
  • Operating temperature: -20 to +60 C; storage -50 to +80 C; IP20 protection class; 100,000 switching cycles typical; 6 W active power loss typical.
  • Certifications: UL/CSA File E190233, IEC 60947-4-1, DIN EN 81346-2.
  • Wrong-part risk: motors above 3.2 A FLA require 3RV2012-1DA10; remote trip or communication requires 3RV2024 series.
  • Available worldwide through LeadTime.ca — check stock and pricing now.