The Siemens 3RV2032-4RA10 is a SIRIUS 3RV2 motor starter protector (circuit breaker for motor protection) in size S2, with a thermal overload release adjustable from 70 … 80 A and a magnetic short-circuit release at 1040 A. Per Siemens it suits motors of about 37 kW at 400 V and has a rated short-circuit breaking capacity (Icu) of 100 kA at 400 V.
Siemens describes this unit as: Circuit breaker size S2 for motor protection, CLASS 10 A-release 70…80 A N- release 1040 A screw terminal increased switching capacity. Its instantaneous release at 1040 A is set well above the motor starting current, so normal starts do not trip it.
See more Siemens industrial controls, including SIRIUS 3RT2 contactors of the same size.
Technical data
| Siemens order number | 3RV2032-4RA10 |
|---|---|
| Product | SIRIUS 3RV2 circuit breaker for motor protection |
| Size | S2 |
| Overload release setting range | 70 … 80 A |
| Instantaneous short-circuit release | 1040 A |
| Trip class | CLASS 10 |
| Rated current | 80 A |
| Motor power AC-3 at 400 V | 37 kW |
| Motor power AC-3 at 230 V | 22 kW |
| Motor power, 3-phase 460/480 V (UL) | 60 hp |
| Breaking capacity Icu at 400 V | 100 kA |
| Breaking capacity Ics at 400 V | 50 kA |
| Rated operating voltage | 690 V |
| Phase failure sensitivity | Yes |
| Isolating function | Yes |
| Combinable contactor sizes | S2 |
| Power loss (hot, total) | 29.5 W |
| Degree of protection (front) | IP20 |
| Ambient temperature (operation) | -20 … +60 °C |
| Mounting | screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715 |
| Dimensions (W x H x D) | 55 x 140 x 149 mm |
| Net weight | 1.179 kg |
| Condition | New, original Siemens |
Typical applications
- Replacement of a tripped or damaged 3RV2 breaker
- Transformer and control circuit protection where a motor-type characteristic is acceptable
- Protection of pumps, fans, conveyors and compressors
- Machine-builder panels where a lockable rotary isolator is required
Compatibility and replacement
Auxiliary switches for status feedback can be added on the front (transverse, for example 3RV2901-1E) or on the left side (3RV2901-1A). For a complete starter combine it with a size S2 3RT2 contactor using the matching Siemens link module.
Frequently asked questions
Can it be locked off?
Yes, the rotary handle can be locked in the OFF position with a padlock, which is required for safe maintenance in many plants.
At what current does it trip instantly?
The magnetic (N) release responds at 1040 A, per Siemens.
Does it include auxiliary contacts?
No. This version has no auxiliary contacts installed; add a 3RV2901 auxiliary switch if you need feedback to the PLC.
How fast can you deliver, and is there a warranty?
Air shipping usually takes 5 to 7 days once the part is ready, to almost any country. Each part is new and original with a 1-year warranty. Message us on WhatsApp with the order number for a quotation.
Before you order
Compare the complete order number on the old unit with this page, including the suffix: in most ranges the last characters set the coil voltage, current range or version. If the label is worn, send us a photo and we will identify the part.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
