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Siemens 3RV1041-4KA15-ZX95 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1041-4KA15-ZX95 SIRIUS Motor Protection CB, 75 A,

MPN3RV1041-4KA15-ZX95

Siemens SIRIUS motor protection circuit breaker, 3RV1041-4KA15-ZX95, 75 A continuous, 37 kW at 400 V, CLASS 10 trip class, 50 kA breaking capacity at 400 V AC, screw terminals, IP20 front.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RV1041-4KA15-ZX95 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1041-4KA15-ZX95 — Electrical
ParameterValue
Rated voltage690 V
Rated voltage, AC-3 (max.)690 V
Rated impulse withstand voltage (Uimp)6 000 V
Number of poles3
Power loss (AC, hot)38 W
Power loss, per pole (AC, hot)12.7 W
3RV1041-4KA15-ZX95 — Protection & Tripping
ParameterValue
Overload release setting range57 ... 75 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)50 kA
Breaking capacity at 500 V (AC)8 kA
Breaking capacity at 690 V (AC)5 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1041-4KA15-ZX95 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1041-4KA15-ZX95 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals with box terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor range, AWG (main contacts)2x (10 ... 1), 1x (10 ... 2)
3RV1041-4KA15-ZX95 — Mechanical
ParameterValue
Height165 mm
Width70 mm
Depth174 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting positionany
3RV1041-4KA15-ZX95 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1041-4KA15-ZX95 — Specifications
ParameterValue
Design Of The Productfor motor protection

Product details

The Siemens 3RV1041-4KA15-ZX95 is a SIRIUS motor protection circuit breaker rated for 75 A continuous current, which translates to 37 kW at 400 V AC in AC-3 motor duty — meaning it directly protects a motor of that size on a standard 400 V three-phase supply. No ground-fault detection here, so that function must come from a separate module or upstream device if the application requires it.

The 70 mm width and 165 mm height fit a standard motor starter slot in most SIRIUS or third-party enclosures. Terminals: main circuit uses screw-type box terminals accepting 2x (10 … 50 mm²) stranded or 1x (10 … 70 mm²) stranded, plus AWG equivalents. Auxiliary and control circuit terminals are screw-type accepting 2x (0.5 … 1.5 mm²) solid or 2x (0.75 … 2.5 mm²) solid. The auxiliary switch is transverse-mounted and field-installable — the product extension for an auxiliary switch is supported, so you can add a signal contact for remote status without replacing the breaker.

Frequently asked questions

What is the breaking capacity of this motor protection circuit breaker at 400 V?

The 3RV1041-4KA15-ZX95 has a rated breaking capacity of 50 kA at 400 V AC, and 100 kA at 240 V AC. At 500 V it is 8 kA, and at 690 V it is 5 kA. This means it can safely clear a fault up to 50 kA at the common 400 V motor supply level without requiring an upstream current-limiting device.

Where can I buy the 3RV1041-4KA15-ZX95?

This part is available to order through independent distribution channels. Submit an RFQ for current pricing and availability; lead time and stock position are confirmed at quote time. No minimum order quantity restrictions apply for standard procurement.

Does the 3RV1041-4KA15-ZX95 include phase failure protection?

Yes, phase failure detection is built into this circuit breaker. If one phase is lost on the supply side, the breaker will trip, preventing single-phasing damage to the motor. Ground fault detection is not included, so that function must be handled separately if required.

What compliance documentation is available for this part?

The manufacturer provides RoHS compliance with a substance prohibition date of 07/01/2006. The product carries the SIRIUS brand designation and is designed to IEC/EN standards for motor protection circuit breakers. Specific UL, CSA, or other agency certification details should be confirmed at order time against the exact variant.

MPN
3RV1041-4KA15-ZX95