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Schneider Electric C40S4TM250D ComPacT NSX400S DC 4P 250 A 100 kA TM-DC Fixed Moulded Case Circuit Breaker

% $-1,660.31
Schneider Electric C40S4TM250D ComPacT NSX400S DC 250A 100kA DC dc moulded case circuit breaker
Schneider Electric C40S4TM250D ComPacT NSX400S DC 250A 100kA DC dc moulded case circuit breaker

Schneider Electric C40S4TM250D ComPacT NSX400S DC 4P 250 A 100 kA TM-DC Fixed Moulded Case Circuit Breaker

Brand: Schneider Electric
Reference No: C40S4TM250D
Catalog No: C40S4TM250D
Tariff Code (HS): 85362090
Rated Current: 250
Breaking Type: TM-DC
Poles: 4P
Stock: 0
Delivery time: 30 business day(s)
Shipping Origin: Türkiye EXW
$1,660.31

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  • Description

The C40S4TM250D is a Schneider Electric ComPacT NSX400S DC 4-pole DC moulded case circuit breaker rated 250 A at 40 °C and 750 V DC, with a 100 kA breaking capacity (Icu) across the full DC voltage range. Its TM-DC thermal-magnetic trip unit gives adjustable overload and short-circuit protection without electronic components.

Technical Specifications

Reference C40S4TM250D
Brand Schneider Electric
Range ComPacT
Series NSX400S DC
Poles 4P
Network type DC
Rated current In 250 A at 40 °C
Rated operational voltage Ue 750 V DC
Rated insulation voltage Ui 750 V DC
Rated impulse withstand voltage Uimp 8 kV
Breaking capacity Icu 100 kA at 24…125 V DC (1 pole), 100 kA at 250 V DC (1 pole), 100 kA at 500 V DC (2 poles in series), 100 kA at 750 V DC (3 poles in series)
Service breaking capacity Ics 100 kA at 24…125 V DC (1 pole), 100 kA at 250 V DC (1 pole), 100 kA at 500 V DC (2 poles in series), 100 kA at 750 V DC (3 poles in series)
Utilisation category Category A
Suitability for isolation Yes, conforming to EN/IEC 60947-2
Trip unit TM-DC (Thermal-magnetic)
Protection functions LI
Protection settings Ir (overload, adjustable) 0.7–1×In; Ii (short-circuit, adjustable) 2.5–5×In.
Earth-leakage protection Without
Control / mounting Toggle handle, fixed mounting on backplate, front/front connection
Dimensions (W×H×D) 185 mm × 255 mm × 110 mm
Net weight 8.4 kg
IP / IK degree IP40 / IK07
Ambient temperature (operation / storage) -25…70 °C / -50…85 °C

Certifications & Standards

  • EN/IEC 60947-2

Selection Notes

The TM-DC trip unit gives adjustable overload protection (Ir 0.7–1×In) and adjustable magnetic short-circuit protection (Ii 2.5–5×In) without electronic components, which keeps the device simple for DC distribution or photovoltaic combiner applications. The 100 kA breaking capacity stays constant from 24 V DC up to 750 V DC because the poles connect in series for the higher-voltage ratings — the series 3-pole connection is what delivers the full 100 kA at 750 V DC. Choose the 250 A rating over the other TM-DC variants in the same frame to match the DC feeder or string combiner current.

Technical Details

Short Description
ComPacT NSX400S DC 4P 250 A DC MCCB, 100 kA Icu, TM-DC trip unit.
Rated Current (Ampere)
250
Mounting Type
Fixed
Protection Type
IP40
Catalog No
C40S4TM250D
Number of Poles
4P
Delivery Date (Days)
30 days
Model Number
NSX400S DC
Tariff Code
85362090

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