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Schneider Electric C404400D1S — Miniature Circuit Breakers (MCB)

Schneider Electric C404400D1S ComPacT NSX DC PV Switch Disco

MPNC404400D1S
Active

Schneider Electric ComPacT NSX DC PV, C404400D1S, switch disconnector, 4 poles, fixed, 400 A, 1000 V DC, DC-22A, IP40.

$24.87Ref. price · indicative, final on quote
Schneider Electric C404400D1S datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

C404400D1S — Identification
ParameterValue
Product nameComPacT NSX DC PV
Product rangeComPacT
Product/component typeSwitch disconnector
Device applicationPhotovoltaic
C404400D1S — Ratings
ParameterValue
Poles configuration4P
Rated operational voltage (Ue)1000 V DC
Rated insulation voltage (Ui)1000 V DC
Rated impulse withstand voltage (Uimp)8 kV
Network type (AC/DC)DC
Utilisation categoryDC-22A
C404400D1S — Protection
ParameterValue
Suitability for isolationYes conforming to EN/IEC 60947-3
Electrical durability (cycles)1000 cycles 1000 V DC In
Mechanical durability (cycles)5000 cycles
C404400D1S — Mechanical
ParameterValue
Mounting supportBackplate
Mounting modeFixed
Control typeToggle
Contact position indicatorYes
C404400D1S — 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
C404400D1S — Approvals
ParameterValue
StandardsEN/IEC 60947-1 EN/IEC 60947-3

Product details

It carries a DC-22A utilisation category, meaning it is tested for switching loads with moderate overcurrents typical of PV combiner boxes and inverter DC inputs. The 1000 V DC insulation voltage (Ui) and 8 kV impulse withstand (Uimp) confirm it is designed for the elevated voltages found in commercial and utility-scale solar installations.

The headline 400 A rating is the free-air thermal current (Ith) at 65 °C; the operational current in DC-22A duty is 320 A at 1000 V DC. Short-time withstand (Icw) is 6 kA for 1 second, and the making capacity (Icm) is also 6 kA as a stand-alone switch-disconnector. For isolation, it is certified per EN/IEC 60947-3 with a visible-break indicator (contact position indicator) so maintenance crews get a positive open confirmation.

Frequently asked questions

What are the key ratings for C404400D1S?

The C404400D1S is a 4-pole switch disconnector rated 400 A free-air thermal (Ith at 65 °C) and 320 A operational in DC-22A at 1000 V DC. Short-time withstand is 6 kA for 1 s; impulse withstand is 8 kV. It is certified for isolation per EN/IEC 60947-3.

Where can I buy C404400D1S and get a price?

The C404400D1S 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 C404400D1S?

The C404400D1S is designed to EN/IEC 60947-1 and EN/IEC 60947-3 standards, with pollution degree 3 per IEC 60664-1, IP40, IK07, and Class II double insulation. Standard Schneider documentation (datasheet, declaration of performance) is available; specific RoHS/REACH declarations are provided on request.

MPN
C404400D1S