Siemens 3rv2011-1ba10

By Abdullah Zahid
13 min read
Siemens 3RV2011-1BA10 SIRIUS Class 10 motor protection circuit breaker size S00 on 35mm DIN rail in industrial panel

Siemens 3RV2011-1BA10 SIRIUS Circuit Breaker for Motor Protection, Class 10, Size S00 — Specifications, Selection Guide and Alternatives

Controls engineers specifying branch circuit protection for small AC motors are typically comparing compact manual motor starters against the alternative of separate overload relays, breakers, and contactors stacked on DIN rail. The Siemens 3RV2011-1BA10 collapses that stack into a single 45mm-wide device rated for up to 690V AC, with a 1.4–2A overload adjustment range and 100 kA short-circuit breaking capacity at 240–500V. If your motor full-load current (FLA) falls in that 1.4–2A window and you are working toward Type E UL compliance, this is likely the correct part — the question is whether the application constraints confirm it.

If you have already confirmed this is the right part, check current pricing and availability for the Siemens 3RV2011-1BA10 at LeadTime.ca — ships worldwide.

Who Should Buy the Siemens 3RV2011-1BA10 — and Who Shouldn't

This device is the right choice for panel designers and OEMs protecting three-phase squirrel cage induction motors where motor FLA is within the 1.4–2A adjustment range. It fits the following applications directly:

  • Motor full-load current (FLA) confirmed between 1.4A and 2A from the motor nameplate
  • System operating voltage at or below 690V AC, 50/60 Hz
  • Site three-phase fault level confirmed at or below 100 kA at 240–500V, or at or below 10 kA at 690V
  • Three-phase AC-3 motor duty — squirrel cage induction motor application
  • DIN rail panel with at least 45mm width available and correct clearances: 30mm above/below at 400V, 50mm above/below at 690V
  • OEM or machine builder requiring Type E UL/CSA certification in a single compact device

If motor FLA exceeds 2A, this is not the correct model. The 3RV2016 covers higher adjustment ranges, and the 3RV2021 handles 16–20A. For DC motor protection or applications requiring integrated auxiliary contacts on the base device, alternative configurations are required — both are discussed in the variant comparison section below.

On this page:

What the Siemens 3RV2011-1BA10 Actually Does in a Motor Branch Circuit

The Siemens 3RV2011-1BA10 is a SIRIUS circuit breaker for motor protection, Class 10, size S00. It is a self-protected Type E motor controller — a single device that provides the disconnect function, overload protection, and short-circuit protection that would otherwise require a manual motor starter, a separate overload relay, and a branch circuit breaker installed in series. The overload trip is handled by a bimetallic thermal element adjusted to the motor's FLA within the 1.4–2A dial range. The short-circuit release is a magnetic element that trips instantaneously at 26A, which corresponds to the N-release point at 12 times the maximum setting.

The Class 10 trip characteristic means the device will trip within 5–8 seconds at 6 times FLA — fast enough to protect the motor windings under a sustained stall condition, but tolerant enough of normal startup inrush current (typically 3–7x FLA for cold starts) to avoid nuisance tripping. Operating power is rated at 0.75 kW at 400V and 1.1 kW at 690V, covering motors rated 1 hp at 460–575/600V three-phase and 0.125 hp at 230V single-phase. A visible trip indicator on the rotary handle allows field technicians to identify a tripped state without instruments. Reset is manual only — the handle must be cycled fully off and back on, with no automatic reclosing.

The device carries UL and CSA Type E certification per UL 508 and CSA C22.2 standards, which simplifies the certification documentation path for OEMs building equipment for North American markets. It meets IEC 60947-6-2 for motor starters and protectors, and carries IP20 protection class with pollution degree 3 — finger-safe but not rated for spray or wash-down environments.

Typical System Architecture: Where This Device Sits in the Panel

The 3RV2011-1BA10 is installed at the motor branch point on 35mm DIN rail, sitting between the upstream panel distribution bus and the motor terminal box. It is the last protective device before the motor load.

  • Upstream: Main panel breaker or distribution bus feeding branch circuits — provides upstream fault clearance above the 3RV2011-1BA10 breaking capacity if fault levels approach design limits
  • DIN rail: 3RV2011-1BA10 snaps onto 35mm DIN rail at 45mm width — accepts incoming mains L1/L2/L3 at upper screw terminals
  • Output: Lower screw terminals U/V/W connect via motor leads (18–14 AWG or 12 AWG) to the motor terminal box
  • Optional expansion: Auxiliary switch modules attach externally if status feedback to a PLC discrete input or remote alarm is required
  • Motor: Three-phase squirrel cage induction motor at AC-3 duty, FLA within 1.4–2A range

Industries and Applications Where the 3RV2011-1BA10 Is the Right Fit

In packaging machinery and conveyor controls, the compact 45mm footprint of the 3RV2011-1BA10 allows multiple motor branch circuits to be grouped on a single DIN rail section without the panel depth penalty of stacked starter-plus-relay assemblies. For small pump and compressor drives in water treatment or HVAC systems, the Class 10 trip curve and built-in temperature compensation for the -20°C to +60°C ambient range eliminates the need for separate ambient correction on the overload relay setting.

OEM machine builders exporting equipment to North American markets use the 3RV2011-1BA10 specifically for its Type E UL and CSA certification, which reduces the documentation burden during third-party panel certification. A single device combining disconnect, overload, and short-circuit protection in a certified package is a direct certification simplification compared to a three-component solution requiring coordination studies between individually listed parts.

In retrofit applications — replacing aging pneumatic or electromechanical motor starters — the 3RV2011-1BA10 is a common upgrade choice where the motor FLA falls in the 1.4–2A range and the existing panel has 45mm of DIN rail space available. The manual rotary handle allows safe lockout and field verification without software or control system involvement.

Application Typical Deployment
Packaging line motor control Multiple 3RV2011-1BA10 units on a single DIN rail section protecting individual conveyor and indexing motors
Small pump or compressor drive Branch circuit protection for 0.75–1.1 kW pump motor at 400–690V in water treatment or HVAC panel
OEM panel for North American export Type E certified single device simplifying UL 508 panel certification documentation for machine builder
Retrofit of electromechanical starters Replaces manual starter plus overload relay stack where FLA is within 1.4–2A and DIN rail space is available
Distributed control system motor branch Self-contained protection at each motor branch point in a distributed I/O panel where single-device architecture reduces spare parts inventory

Key Specifications for Purchase Decision

Specification Value
Overload Adjustment Range 1.4–2A
Rated Operating Voltage 690V AC, 50/60 Hz
Short-Circuit Breaking Capacity 100 kA at 240V, 400V, 500V; 10 kA at 690V
Short-Circuit Release Point 26A (N-release, 12x maximum FLA setting)
Trip Class Class 10 (5–8 seconds at 6x FLA)
Motor Power Rating 0.75 kW at 400V / 1.1 kW at 690V (3-phase); 1 hp at 460–575/600V; 0.125 hp at 230V single-phase
Protection Class / Pollution Degree IP20 / Degree 3
Dimensions (H x W x D) 97mm x 45mm x 97mm
Mounting 35mm DIN rail, snap-on and screw fastening
Terminal Type / Wire Gauge Screw connection; 2x (18–14 AWG) or 2x 12 AWG

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

3RV2011-1BA10 vs. Other SIRIUS Variants: Which Current Range Do You Need?

Model Adjustment Range Frame Size Typical Motor Range Auxiliary Contacts (Base) Rated Voltage
3RV2011-1BA10 1.4–2A S00 0.75–1.1 kW at 400–690V None (base device) 690V AC
3RV2016 (8–10A) 8–10A Larger frame 5–7.5 hp range Options available 690V AC
3RV2021 (16–20A) 16–20A Larger frame 15–20 hp range Options available 690V AC

The 3RV2011-1BA10 is the correct choice when motor FLA falls between 1.4A and 2A and panel space is at a premium. If your motor FLA exceeds 2A, the 3RV2016 or 3RV2021 are the appropriate selections — oversizing the adjustment range on this model would leave the motor underprotected against sustained overloads. Check current availability of the 3RV2011-1BA10 at LeadTime.ca or contact the team to confirm the right variant for your application.

Expert Verdict: Honest Assessment for Engineers at the Purchase Stage

The Siemens 3RV2011-1BA10 does what a compact motor protection circuit breaker should: it eliminates the stack of separate devices, delivers 100 kA breaking capacity at standard industrial voltages, and carries the Type E certification that OEM panel builders need for straightforward UL compliance. The 45mm footprint is genuinely useful in tight panels, and the built-in temperature compensation for the -20°C to +60°C operating range removes one more variable from the commissioning checklist. For motors rated 0.75–1.1 kW at 400–690V with FLA in the 1.4–2A range, this is a proven, well-distributed part with a long service life rated at 10 years and 100,000 mechanical cycles.

Where this device has real limits: the base 3RV2011-1BA10 has no integrated auxiliary contacts. If your PLC or control system requires status feedback, a run confirmation signal, or a remote trip alarm, you will need an external auxiliary switch module — that is available as an add-on, but it is not included and must be ordered separately. The device is also AC-3 only; it is not rated for DC motor protection. At 690V, the short-circuit breaking capacity drops to 10 kA, which is adequate for most distribution panels but should be confirmed against your site fault study before specifying. Engineers with motors above 2A FLA should move directly to the 3RV2016 — do not attempt to work around the adjustment range limit on this model. If you need this match your system requirements, view current stock and pricing for the 3RV2011-1BA10 at LeadTime.ca.

From a procurement standpoint, the 3RV2011-1BA10 is a commonly stocked part at major distributors globally, with typical delivery of 1–3 weeks from stock. Factory-direct small-volume orders from Siemens can extend to 4–8 weeks, so for project builds with hard commissioning dates, sourcing from stocking distributors is the lower-risk path. High-volume buyers — 100 or more units — should request a volume pricing quote directly, as discounts in the range of 15–25% are typical at that quantity level. Pricing is subject to currency fluctuation between USD and CAD and current supplier margins, so confirm with your distributor at time of order.

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

Wiring and Installation Overview

The following points cover the key requirements engineers need to verify before installation. Full wiring diagrams and torque specifications are in the Siemens installation manual for the 3RV2011-1BA10.

  • Incoming mains L1/L2/L3 connect to upper screw terminals; motor leads U/V/W connect from lower screw terminals to the motor terminal box — no neutral required for three-phase delta or wye configurations
  • Wire gauge must be within the rated range: 2x (18–14 AWG) or 2x 12 AWG per UL/CSA wire chart; use correct terminal lugs and torque to the screw terminal specification in the manufacturer datasheet (M4 screw typical)
  • Mount on 35mm DIN rail with snap-on clip and screw fastening; verify the unit is flush and level; maintain clearance from grounded parts — 30mm above/below at 400V, 50mm above/below at 690V
  • Set the overload adjustment dial to match motor nameplate FLA within the 1.4–2A range before energization; do not adjust the dial under load
  • External grounding is required per local electrical code (NEC/CEC); the device has no integrated ground connection; no safety-rated switching-off function is provided — use an external emergency stop relay where emergency stop is required

Compatible Auxiliary Modules and System Expansion

The base Siemens 3RV2011-1BA10 does not include integrated auxiliary contacts. External adapter modules within the Siemens SIRIUS accessory range can add status feedback capability for PLC discrete inputs, remote alarm outputs, or trip indication signals. The following expansion options are relevant to the S00 frame size:

  • Auxiliary switch modules (NC and NO contact options): attach externally to the base device to provide run/trip status feedback to control systems
  • Signal contact modules: provide alarm or status indication for remote monitoring panels
  • Mounting accessories for 35mm DIN rail: screw-type and snap-on configurations available for the S00 frame

Confirm compatibility of any accessory module with the S00 frame size and the 3RV2011 series before ordering — not all SIRIUS accessory modules are cross-compatible across frame sizes.

Wrong-Part Prevention Checklist Before You Order

Before placing a purchase order for the Siemens 3RV2011-1BA10, verify each of the following six points against your motor nameplate and panel design drawings:

  1. Verify motor full-load current (FLA) is within 1.4–2A range; check motor nameplate
  2. Confirm system voltage does not exceed 690V AC rating
  3. Ensure three-pole configuration is correct for 3-phase motor application
  4. Check that short-circuit current (fault level) does not exceed 100 kA at selected voltage
  5. Verify DIN rail mounting space: 45mm width required, 30mm clearance needed for terminals at 400V, up to 50mm clearance for 690V applications
  6. Confirm screw terminal wire gauge compatibility: 2x 18–14 AWG or 2x 12 AWG per wire chart

If all six points are confirmed, proceed to the product page at LeadTime.ca to check stock and request a quote. If any point raises a question, contact the LeadTime.ca team before ordering.

Frequently Asked Questions

Can the Siemens 3RV2011-1BA10 be used for a single-phase motor?

Yes, with a specific limitation: the 3RV2011-1BA10 is UL-rated for 0.125 hp at 230V single-phase. For three-phase applications, the rated motor power is 1 hp at 460–575/600V. Engineers specifying for single-phase applications should verify that the FLA of the single-phase motor still falls within the 1.4–2A adjustment range on the dial, as the same overload setting applies regardless of phase configuration.

What happens if the site fault level at 690V exceeds 10 kA?

The short-circuit breaking capacity of the 3RV2011-1BA10 at 690V is rated at 10 kA. If your fault study shows the three-phase short-circuit current at the motor branch exceeds this value, the device cannot safely interrupt that fault. In that situation, upstream current-limiting protection or coordination with a higher breaking capacity device is required. The 100 kA breaking capacity applies at 240V, 400V, and 500V — confirm your system voltage and fault level against both figures before specifying.

Does this device provide a safety-rated switching-off function for emergency stop?

No. The Siemens 3RV2011-1BA10 is not rated as a safety switching device for emergency stop functions. If your machine design requires a safety-rated disconnection function, an external emergency stop relay or safety relay module must be installed in the circuit. The rotary handle provides a manual disconnect capability for maintenance and lockout purposes, but this is not classified as a safety-rated switching-off function per relevant IEC or EN standards.

What is the correct approach if the motor FLA is below 1.4A?

The 3RV2011-1BA10 adjustment range starts at 1.4A. If your motor FLA is below this lower limit, setting the dial to its minimum position may leave the motor overprotected with a higher nuisance trip risk, or may not provide adequate protection depending on the actual FLA. Verify suitability with the motor manufacturer's documentation and consult Siemens product selection tools or LeadTime.ca for the correct lower-range model within the SIRIUS family.

Are auxiliary contacts included with the base 3RV2011-1BA10?

No. The base Siemens 3RV2011-1BA10 does not include integrated auxiliary contacts. External auxiliary switch modules from the SIRIUS accessory range can be added for NC or NO status feedback, but these must be ordered separately and confirmed compatible with the S00 frame size. This is one of the most common configuration gaps engineers encounter when moving from this compact S00 frame to larger frame options where auxiliary contacts are more commonly integrated.

How often should the Siemens 3RV2011-1BA10 be proof-tested in a high-duty application?

The B10 value for the 3RV2011-1BA10 is 50,000 cycles at high demand rate. Siemens documentation indicates a service life of 10 years maximum, with a maximum of 100,000 mechanical cycles typical for main contacts. In high-duty applications, a proof test — manual trip and reset with tripping current verified by clamp meter — is recommended every 2–3 years or after accumulating 25–30% of the B10 value. Annual visual inspection for loose fasteners, handle movement, and visible corrosion is the baseline maintenance interval.

Why Order the 3RV2011-1BA10 from LeadTime.ca

  • LeadTime.ca ships the Siemens 3RV2011-1BA10 worldwide — no geographic restriction on orders
  • Sourcing team can confirm real stock levels and committed lead times before you place a project order — useful when your commissioning date is fixed
  • Volume pricing available for 100-unit-plus orders; contact the team for a project quote rather than list pricing
  • Hard-to-find SIRIUS accessories and variant models sourced on request — not limited to what appears on the shelf
  • Direct contact with the team for pre-order technical confirmation if any checklist item requires clarification

At-a-Glance Summary

  • The Siemens 3RV2011-1BA10 is a SIRIUS Class 10 motor protection circuit breaker, size S00, with 1.4–2A overload adjustment range
  • Rated for 690V AC, 50/60 Hz; short-circuit breaking capacity 100 kA at 240–500V and 10 kA at 690V
  • Short-circuit release at 26A (N-release, 12x maximum FLA setting); Class 10 trip time 5–8 seconds at 6x FLA
  • Motor power ratings: 0.75 kW at 400V, 1.1 kW at 690V three-phase; 1 hp at 460–575/600V; 0.125 hp at 230V single-phase
  • Physical dimensions: 97mm H x 45mm W x 97mm D; mounts on 35mm DIN rail with snap-on and screw fastening
  • Screw terminals accept 2x (18–14 AWG) or 2x 12 AWG; no integrated auxiliary contacts on base device
  • IP20 protection class, pollution degree 3, operating temperature -20°C to +60°C, storage -50°C to +80°C
  • B10 value 50,000 cycles at high demand; 100,000 mechanical cycles typical; 10-year maximum service life
  • Type E certified per UL 508 and CSA C22.2; IEC 60947-6-2 compliant; not rated for safety-rated switching-off or DC motor protection
  • Available worldwide through LeadTime.ca — check current pricing and availability