Siemens 3RV2011-1HA10 — S00 Motor Protector Specs and Selection

By Abdullah Zahid
11 min read
Siemens 3RV2011-1HA10 S00 frame motor protection circuit breaker 5.5-8A DIN rail mount industrial panel

Siemens 3RV2011-1HA10 Circuit-Breaker SZ S00, For Motor Protection, Class 10 — Complete Specs, Selection Guide, and Buying Advice

When a controls engineer or panel builder searches for the Siemens 3RV2011-1HA10, they are typically at a specific decision point: does this motor protection circuit breaker cover their motor's full-load current, fit the available panel space, and meet the site electrical code — or do they need a different current range? The 3RV2011-1HA10 is a compact S00-frame MPCB from the Siemens SIRIUS family, combining adjustable thermal overload protection across a 5.5–8A range with an instantaneous magnetic short-circuit release rated at 104A, all in a 45mm-wide DIN rail package rated to 690V AC. Understanding those three parameters — thermal range, magnetic trip, and frame size — settles most purchase decisions immediately.

If you have already confirmed this is the right part, check current pricing and availability at LeadTime.ca — ships worldwide.

Who Should Buy the Siemens 3RV2011-1HA10 — and Who Shouldn't

This model is the correct choice when all of the following are true for your application:

  • Your motor's nameplate full-load current (FLA) falls within the 5.5–8A adjustable thermal release window
  • Your supply voltage does not exceed 690V AC maximum rated insulation and operating voltage
  • Your supply is three-phase at 50Hz or 60Hz (both frequencies are supported)
  • Your panel or DIN rail has at least 45mm of width available for an S00 frame device
  • Your wiring uses conductors within the M3 screw terminal range — AWG 18–12 (0.75–4 mm² metric equivalent)
  • Class 10 trip classification meets the electrical code requirements for your installation site

If your motor FLA exceeds 8A, the 3RV2011-1HA10 is not the right model. The 3RV2011-1HA20 covers a 16–20A range for larger motors, and larger S2, S3, and S4 frame variants exist for higher HP requirements. If your site code mandates Class 20 or Class 5 protection, verify compliance before ordering this Class 10 device.

On this page:

What the Siemens 3RV2011-1HA10 Actually Does in a Motor Control Circuit

The Siemens 3RV2011-1HA10 is a motor protection circuit breaker — MPCB for short — that consolidates three protection functions into one device: thermal overload protection, instantaneous magnetic short-circuit release, and phase failure detection. In practical terms, it replaces the combination of a separate contactor-mounted overload relay and standalone circuit breaker that older panel designs required, eliminating wiring steps and reducing the parts count in new builds or retrofits.

The thermal release is adjustable via a front-mounted rotary dial spanning 5.5 to 8A. This is set to the motor's nameplate FLA and provides Class 10 trip behavior — meaning the device will trip at a current level that reaches 10 times the maximum thermal setting, or 104A, on an instantaneous magnetic basis. The phase failure function monitors the three-phase supply and trips the device if one phase is lost, preventing single-phase motor operation that would otherwise cause rapid winding overheating and failure.

Two practical proof points from the technical data: the 3RV2011-1HA10 carries CE, UL, CSA, and CCC certification marks, making it viable across North American, European, and Chinese-market equipment. Its mechanical endurance is rated at 100,000 switching cycles, which translates to years of daily operation in most industrial motor control applications before component fatigue becomes a concern.

Where this device does not substitute for a full motor starter is in applications requiring remote switching via a contactor coil, multi-speed control, or integrated soft-start capability. The 3RV2011-1HA10 provides protection and isolation — not switched control. If your application needs a contactor for remote start/stop, the MPCB is still used upstream as the protection device, and the contactor is added downstream.

Typical System Architecture: Where the 3RV2011-1HA10 Sits in the Signal Chain

The 3RV2011-1HA10 sits directly between the panel's branch circuit supply and the downstream motor load — serving as the protection and isolation point for that specific motor circuit.

  • Main panel disconnect or distribution breaker supplies three-phase voltage (up to 690V AC) to the feeder bus
  • The 3RV2011-1HA10 mounts on a 35mm DIN rail, receiving supply on terminals L1, L2, L3
  • Output terminals T1, T2, T3 connect either directly to the motor leads or to a downstream contactor (when remote switching is required)
  • If a contactor is used, the MPCB handles protection while the contactor handles switching — a common combination in DOL (direct-on-line) starter assemblies
  • The motor (three-phase AC induction type, 2–5 HP range at standard industrial voltages) connects as the final load downstream

Industries and Applications Where This MPCB Is the Standard Choice

In food and beverage processing lines, the 3RV2011-1HA10's compact S00 frame is a common choice for protecting conveyor drive motors, pump motors, and agitator drives in the 2–5 HP range where panel space is constrained and cleanliness of installation matters.

Water and wastewater treatment facilities use this device for small pump motor protection across both 460V and 575V systems, where the UL/CSA dual certification satisfies inspection requirements without requiring special documentation or variance.

OEM machine builders standardize on the Siemens SIRIUS 3RV2011 family across multiple motor sizes because a single platform means consistent spare parts inventory, consistent panel layout templates, and a single documentation set across exported machines. The 690V rating also supports machines built to European electrical standards but deployed anywhere globally.

Retrofit and replacement applications represent a significant share of orders for this model. When a legacy overload relay fails in a confined panel and there is no space for a separate replacement relay plus isolation device, the integrated MPCB approach of the 3RV2011-1HA10 resolves the space constraint in a single part number.

Application Typical Deployment
Food and beverage conveyor drive Direct motor protection, 460V three-phase, 5 HP, S00 frame in compact panel
Water treatment pump motor DOL starter with downstream contactor, 575V, UL/CSA compliance required
Pharmaceutical packaging machine OEM panel build, multiple motor sizes standardized on 3RV2011 family
Automotive assembly line Retrofit replacement for failed overload relay in space-constrained panel cavity
Export machinery (EU standards) 690V-rated protection for European-spec motors deployed internationally
HVAC fan motor control Compact panel build, single-phase 230V, 1 HP motor, AWG 14 field wiring

Purchase-Decision Specs: Electrical, Mechanical, and Environmental Ratings

Parameter Rating Notes
Rated Voltage (Maximum) 690V AC Insulation voltage at pollution degree 3
Thermal Release (Adjustable) 5.5–8A Front-mounted rotary dial; set to motor nameplate FLA
Magnetic Release (Instantaneous) 104A Class 10 trip — 10x maximum thermal setting
Trip Class Class 10 Per IEC/EN 60947-4-1
Frame Size / Width S00 / 45mm DIN rail mount, 35mm rail standard
Operating Temperature -20 to +60°C At +60°C upper limit, thermal calibration shifts
Number of Poles 3 Three-phase main circuit protection
Wire Gauge (Main Terminals) AWG 18–12 (0.75–4 mm²) M3 screw terminals, fixed design
Mechanical Endurance 100,000 cycles Main and auxiliary contacts
Certification Marks CE / UL / CSA / CCC North American, European, and Chinese market compliance

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

3RV2011-1HA10 vs. 3RV2011-1HA20 and Larger Frame Alternatives

Model Thermal Range Magnetic Trip Frame Size Width Best For
3RV2011-1HA10 5.5–8A 104A S00 45mm Motors up to 8A FLA; 2–5 HP three-phase at standard voltages
3RV2011-1HA20 16–20A 208A S00 45mm Motors with 16–20A FLA; larger HP at lower voltages
S2 Frame Variants Higher current ranges Higher magnetic trip S2 Larger than 45mm Motors exceeding S00 current capacity; higher HP applications
S3 / S4 Frame Variants Higher current ranges Higher magnetic trip S3 / S4 Larger than S2 High HP industrial motors; larger panel footprint required

If your motor FLA sits at or below 8A and your panel uses standard 45mm S00 rail allocations, the 3RV2011-1HA10 is the correct choice — check current availability at LeadTime.ca.

Expert Verdict: Honest Assessment for Engineers Making a Final Call

The Siemens 3RV2011-1HA10 earns its place as a catalog staple for a straightforward reason: it eliminates a wiring problem. Panel builders who have moved from a separate overload relay plus isolation breaker to an integrated MPCB for motors in the 2–5 HP range at 460V or 575V report measurable time savings on terminal wiring during new builds, and a significantly simpler spare parts story on maintenance. The 100,000-cycle mechanical endurance rating, Class 10 trip behavior, and quad certification (CE/UL/CSA/CCC) mean it travels well across machine types and market destinations without requiring a platform change or additional documentation.

The honest limits: the 5.5–8A thermal window is narrow by design — that is the point of a current-specific MPCB. If your motor selection is still in flux or if you are consolidating spares across a wide HP range, stocking one model may not be practical. The base 3RV2011-1HA10 also ships without auxiliary contacts (the base model has zero NO and zero NC contacts). If your control logic requires a normally-open or normally-closed auxiliary output to signal a PLC or indicator light, you will need to add an auxiliary switch expansion module separately — the base model does not include this. And Class 10 is the standard industrial motor trip class, but some facilities with soft-start motors or high-inertia loads explicitly require Class 20 — confirm before installing.

From a procurement standpoint, the 3RV2011-1HA10 is a widely-stocked catalog item, which generally means shorter lead times than configured or specialized motor protection products. Volume pricing for panel builders and OEMs ordering across multiple motor sizes in the SIRIUS 3RV2011 family is worth asking about — the per-unit cost on mixed-current-range orders can be consolidated into a single purchase. If this matches your system requirements, view current stock and pricing at LeadTime.ca.

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

  • Mount the 3RV2011-1HA10 on a standard 35mm DIN rail; the S00 frame requires 45mm of rail width allocation — verify panel layout before mounting
  • Supply connections enter at terminals L1, L2, L3 (top); motor load connections exit at T1, T2, T3 (bottom) — conductor gauge must fall within AWG 18–12 (0.75–4 mm²) for M3 screw terminals
  • Set the front rotary thermal dial to the motor nameplate FLA value within the 5.5–8A range before energizing — never estimate from HP rating alone; use nameplate ampere value
  • The device operates at 50Hz and 60Hz without modification — no jumper changes or internal settings are required for frequency selection
  • Do not install in locations where ambient temperature exceeds +60°C; at this upper limit, thermal calibration shifts and the device may trip below the set FLA value — consult manufacturer documentation for full derating guidance

Compatible Expansion Modules and System Accessories

The base 3RV2011-1HA10 ships without auxiliary contacts or additional protection functions. The Siemens SIRIUS 3RV2011 frame supports add-on expansion modules that attach to the device without additional wiring runs. Verify compatibility of any expansion module with the S00 frame before ordering.

  • Auxiliary switch modules — add normally-open or normally-closed contacts for PLC feedback, indicator circuits, or interlock logic (not included in base model; zero NO and zero NC contacts in base configuration)
  • Undervoltage release accessories — for applications requiring automatic trip on supply voltage loss (not integrated in the base 3RV2011-1HA10)
  • Remote operator handles — extend the manual ON/OFF operator to door-mounted or remote positions for panel access without opening doors

Wrong-Part Prevention Checklist Before You Order

Before placing your order for the Siemens 3RV2011-1HA10, verify every item on this checklist — a single mismatch means a return shipment and a delayed installation:

  1. Confirm motor nameplate FLA falls within 5.5–8A adjustment window; if outside range, select different A-release model
  2. Verify motor supply voltage does not exceed 690V rated insulation and operating voltage
  3. Check that three-phase motor supply matches frequency (50/60 Hz); this unit handles both
  4. Confirm frame size S00 (45mm width) fits in panel or rail space allocation
  5. Verify screw terminal connection matches available wire gauges (M3 threads, 18–12 AWG or equivalent metric)
  6. Check that trip class Class 10 meets site electrical code requirements (some facilities require Class 20 or Class 5)
  7. Ensure ambient temperature stays within -20 to +60°C operating range; at +60°C upper limit thermal calibration shifts

If every item on this list checks out, this is the correct part for your application. View current pricing and stock at LeadTime.ca or contact the team for a quote if you are ordering multiple current ranges across a panel build.

Frequently Asked Questions

Does the 3RV2011-1HA10 work on both 50Hz and 60Hz systems without any modification?

Yes. The 3RV2011-1HA10 supports both 50Hz and 60Hz operating frequencies without internal jumper changes or hardware modifications. This makes it suitable for machines exported between regions with different grid frequencies without requiring a different part number.

What happens at +60°C ambient — is the thermal trip still accurate?

At the upper operating temperature limit of +60°C, the thermal calibration of the bimetallic release shifts, which can cause the device to trip at current levels below the dial setting. If your installation site approaches this limit, consult the Siemens derating documentation before commissioning. For consistently high-ambient environments, consider panel cooling or selecting a device with a higher ambient rating.

Can I add auxiliary contacts to the 3RV2011-1HA10 for PLC feedback?

The base 3RV2011-1HA10 ships with zero normally-open and zero normally-closed auxiliary contacts. Auxiliary switch expansion modules are available for the S00 frame and attach to the device, but they must be ordered separately. Confirm module compatibility with the S00 frame designation before purchasing.

What is the difference between the 3RV2011-1HA10 and the 3RV2011-1HA20?

The 3RV2011-1HA10 covers a 5.5–8A thermal release range with a 104A instantaneous magnetic trip. The 3RV2011-1HA20 covers a 16–20A thermal range with a 208A magnetic trip. Both use the same S00 frame at 45mm width, so the mounting footprint and DIN rail slot are identical. The only correct basis for choosing between them is the motor nameplate FLA.

Does the 3RV2011-1HA10 meet Canadian Electrical Code requirements?

The device carries CSA certification, which is relevant for compliance with Canadian Electrical Code Section 14 requirements for motor protection. The 690V rated insulation voltage also supports European-standard motors sometimes imported for automation equipment deployed in Canada. Always confirm with your authority having jurisdiction (AHJ) for site-specific code compliance.

What is the magnetic trip current of the 3RV2011-1HA10, and does it affect motor starting?

The instantaneous magnetic release trips at 104A, which is 10 times the maximum thermal setting of 8A — consistent with the Class 10 designation per IEC/EN 60947-4-1. This level is set above typical motor inrush current for motors in the 2–5 HP range, so nuisance trips during normal across-the-line starting are uncommon. If your motor has unusually high starting inrush, verify the starting current against the 104A magnetic threshold before installation.

Why Order From LeadTime.ca

  • LeadTime.ca ships the Siemens 3RV2011-1HA10 worldwide — no single-region restriction on sourcing or delivery
  • Hard-to-find and in-stock industrial automation parts from the Siemens SIRIUS family available through a single distributor contact
  • Volume pricing available for panel builders and OEMs ordering across multiple current-range variants in the 3RV2011 family — worth asking before placing individual unit orders
  • Fast response for quote requests and lead time confirmation before build commitment
  • View the 3RV2011-1HA10 product page for current pricing and availability
  • Contact the LeadTime.ca team for volume orders, project sourcing, or lead time verification

At-a-Glance Summary

  • Model: Siemens 3RV2011-1HA10 — Circuit-Breaker SZ S00, For Motor Protection, Class 10
  • Thermal release range: 5.5–8A, front-mounted rotary dial, set to motor nameplate FLA
  • Magnetic short-circuit trip: 104A instantaneous (Class 10, 10x maximum thermal setting)
  • Rated voltage: 690V AC maximum — supports North American and European motor voltages on one part number
  • Frame size: S00, 45mm width, 96mm depth, 35mm DIN rail mount
  • Operating temperature: -20 to +60°C; storage and transport: -50 to +80°C
  • Terminal connection: M3 screw, AWG 18–12 (0.75–4 mm²), fixed design
  • Mechanical endurance: 100,000 switching cycles
  • Base model has zero auxiliary contacts — expansion modules must be added separately if PLC feedback signals are required
  • Certifications: CE / UL / CSA / CCC — valid for North American, European, and Chinese market equipment
  • Protection functions: thermal overload, instantaneous magnetic short-circuit, phase failure detection