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Siemens 3RV1421-1DA10-ZW96 — Motor Protection Circuit Breakers (MPCB)

Siemens 3RV1421-1DA10-ZW96 SIRIUS Circuit Breaker, 3.2 A, Cl

MPN3RV1421-1DA10-ZW96

Siemens SIRIUS circuit breaker for transformer protection, 3.2 A, Class 10, 3-pole, screw terminals, 100 kA breaking capacity at 400 V AC, order code 3RV1421-1DA10-ZW96.

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

Specifications

3RV1421-1DA10-ZW96 — Identification
ParameterValue
SeriesSIRIUS
Product designationcircuit breaker
3RV1421-1DA10-ZW96 — 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)7.25 W
Power loss, per pole (AC, hot)2.4 W
3RV1421-1DA10-ZW96 — Protection & Tripping
ParameterValue
Overload release setting range2.2 ... 3.2 A
Trip classCLASS 10
Breaking capacity at 240 V (AC)100 kA
Breaking capacity at 400 V (AC)100 kA
Breaking capacity at 500 V (AC)100 kA
Breaking capacity at 690 V (AC)8 kA
Phase-failure detectionYes
Ground-fault detectionNo
Auxiliary switch extendableYes
3RV1421-1DA10-ZW96 — Endurance & Switching
ParameterValue
Auxiliary CO (changeover) contacts0
3RV1421-1DA10-ZW96 — Connections
ParameterValue
Main-circuit terminal typescrew-type terminals
Main-circuit connector arrangementfront side
Conductor cross-section, finely stranded with ferrule2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²)
Conductor range, AWG (main contacts)2x (14 ... 10)
3RV1421-1DA10-ZW96 — Mechanical
ParameterValue
Height97 mm
Width45 mm
Depth96 mm
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022
Mounting positionany
3RV1421-1DA10-ZW96 — Environmental
ParameterValue
Operating temperature-20 ... +60 °C
Storage temperature-50 ... +80 °C
Transport temperature-50 ... +80 °C
Max. installation altitude2 000 m
3RV1421-1DA10-ZW96 — Specifications
ParameterValue
Design Of The Productfor transformer protection

Product details

Breaking capacity and voltage ratings

Rated for 690 V AC, this breaker delivers 100 kA breaking capacity at 240 V, 400 V, and 500 V AC, dropping to 8 kA at 690 V AC — the derating at the top end is typical for this class and means the 690 V application needs a fault-current study to confirm the 8 kA covers the prospective short-circuit.

Protection features and environmental limits

Shock resistance rated at 25g for 11 ms, suitable for industrial machinery with moderate vibration.

Listed as current production (active lifecycle stage).

Frequently asked questions

Where can I buy 3RV1421-1DA10-ZW96 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Submit a request for quote to confirm current availability and pricing.

What is the closest functional second-source for 3RV1421-1DA10-ZW96?

The 3RV1011-1AA15 is a peer in the same SIRIUS family, but it is a standard motor-protective breaker, not a transformer-protection variant. The 3RV1421-1DA10-ZW96 has a Class 10 trip curve tailored for transformer inrush; swapping to the 3RV1011-1AA15 without verifying coordination could cause nuisance tripping or inadequate protection.

What is the depth of 3RV1421-1DA10-ZW96?

The depth is 96 mm.

What compliance documentation does Siemens provide for 3RV1421-1DA10-ZW96?

The part carries a substance prohibition date of 01.05.2012, indicating RoHS compliance. Standard Siemens documentation includes a CE declaration and UL/CSA file information; specific certificates are available on request.

MPN
3RV1421-1DA10-ZW96