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Schneider Electric C10N3MA003 — Miniature Circuit Breakers (MCB)

Schneider Electric C10N3MA003 ComPacT NSX Circuit Breaker, 2

MPNC10N3MA003
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Schneider Electric ComPacT NSX circuit breaker, C10N3MA003, 3-pole, 2.5 A magnetic trip unit (MA), 50 kA breaking capacity at 415 V AC, motor protection application.

$321.02 – $502.25Ref. price · indicative, final on quote
Schneider Electric C10N3MA003 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

C10N3MA003 — Identification
ParameterValue
Product nameComPacT NSX
Product rangeComPacT
Product/component typeCircuit breaker
Device applicationMotor protection
C10N3MA003 — Ratings
ParameterValue
Rated current (In)2.5 A at 65 °C
Poles configuration3P
Breaking capacity90 kA Icu at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA Icu at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA Icu at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA Icu at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA Icu at 660/690 V AC 50/60 Hz conforming to IEC 60947-2 85 kA Icu at 240 V AC 50/60 Hz conforming to UL 60947-4-1 50 kA Icu at 480 V AC 50/60 Hz conforming to UL 60947-4-1 10 kA Icu at 600 V AC 50/60 Hz conforming to UL 60947-4-1
Rated service breaking capacity (Ics)90 kA at 220/240 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 380/415 V AC 50/60 Hz conforming to IEC 60947-2 50 kA at 440 V AC 50/60 Hz conforming to IEC 60947-2 36 kA at 500 V AC 50/60 Hz conforming to IEC 60947-2 35 kA at 525 V AC 50/60 Hz conforming to IEC 60947-2 10 kA at 660/690 V AC 50/60 Hz conforming to IEC 60947-2
Rated operational voltage (Ue)690 V AC 50/60 Hz
Rated insulation voltage (Ui)800 V AC 50/60 Hz
Rated impulse withstand voltage (Uimp)8 kV
Network type (AC/DC)AC
Network frequency50/60 Hz
Utilisation categoryCategory A
Overvoltage categoryIII
C10N3MA003 — Protection
ParameterValue
Trip unit technologyMagnetic
Earth-leakage protectionWithout
Suitability for isolationYes conforming to EN/IEC 60947-2
Electrical durability (cycles)50000 cycles at 440 V In/2 30000 cycles at 440 V In 20000 cycles at 690 V In/2 10000 cycles at 690 V In
Mechanical durability (cycles)50000 cycles
C10N3MA003 — Mechanical
ParameterValue
Mounting supportBackplate
Control typeToggle
C10N3MA003 — Environmental
ParameterValue
Operating ambient temperature-25...70 °C
Storage ambient temperature-50...85 °C
IP degree of protectionIP40 conforming to IEC 60529
Pollution degree3 conforming to IEC 60664-1
Relative humidity0...95 %
C10N3MA003 — Approvals
ParameterValue
StandardsEN/IEC 60947-2
C10N3MA003 — Specifications
ParameterValue
Trip unit protection functionsI

Product details

It provides short-circuit protection (magnetic) only, with no thermal overload element — that function is handled by a separate motor starter or overload relay upstream. The 3-pole breaker is rated for 50 kA Icu at 380/415 V AC 50/60 Hz per IEC 60947-2, and carries a 90 kA Icu at 220/240 V AC. The MA trip unit is set at 2.5 A at 65 °C, meaning it will trip magnetically on short-circuit currents above that threshold, but does not track thermal heating in the motor circuit.

Motor protection — why the MA trip unit matters

This breaker is built for motor protection duty (Category A, per IEC 60947-2). The magnetic-only trip unit (MA) is standard for motor branch circuits where a separate overload relay handles thermal protection. The 2.5 A rating at 65 °C means it's sized for a small motor load — roughly 1.1 kW at 400 V three-phase, depending on motor full-load amps. The 3D protected poles configuration covers all three phases.

IP40 enclosure protection (finger-safe), IK07 impact resistance.

Frequently asked questions

What is C10N3MA003 used for?

It is a 3-pole motor protection circuit breaker with a 2.5 A magnetic-only trip unit, used in motor branch circuits where a separate overload relay provides thermal protection.

What are the key ratings of C10N3MA003?

Rated current 2.5 A at 65 °C, breaking capacity 50 kA Icu at 380/415 V AC, magnetic-only trip unit for short-circuit protection, 3 poles, 50/60 Hz.

Where can I buy C10N3MA003 and how is it quoted?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

What compliance documentation does Schneider provide for C10N3MA003?

The breaker is certified to EN/IEC 60947-2, suitable for isolation per that standard, and carries IP40 and IK07 ratings. Pollution degree 3 per IEC 60664-1, overvoltage category III.

MPN
C10N3MA003