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Schneider Electric

Schneider Electric Compact NSX 250B Circuit Breaker

Schneider Electric Compact NSX 250B Circuit Breaker

€1.082,95incl. VAT
€895,00 excl. VAT

Stock: 1

Tested & workingReally in stockWorldwide shipping12-month warranty
Ships from our own warehouse in Veen, the Netherlands
Order before 16:00 CET — shipped the same day
Worldwide shipping with track & trace
Questions? Contact our team
GearProduct description & specifications
Schneider Electric Compact NSX250B Circuit Breaker with MicroLogic 5.2 Control Unit Specifications
Product TypeMolded Case Circuit Breaker (MCCB)
ManufacturerSchneider Electric
ModelCompact NSX250B with MicroLogic 5.2
Device ApplicationDistribution protection
Poles Description3P 3d  
Rated Current (In)250 A at 40 °C
Trip Unit NameMicroLogic 5.2 E (Ammeter or Energy-metering )
Trip Unit TechnologyElectronic
Trip Unit Rating100–250 A (adjustable)
Protection Type
LOverload protection (long time)
SShort-time short-circuit protection (adjustable delay)
IInstantaneous short-circuit protection
Rated Insulation Voltage (Ui)800 V AC 50/60 Hz

Rated Impulse Withstand Voltage (Uimp): 8 kV

Rated Operational Voltage (Ue)690 V AC 50/60 Hz
Network TypeAC
Network Frequency50/60 Hz
Breaking Capacity CodeB (25 kA at 415 V AC)
Breaking Capacity (Icu)

40 kA at 220/240 V AC 50/60 Hz (IEC 60947-2)

25 kA at 380/415 V AC 50/60 Hz (IEC 60947-2)

20 kA at 440 V AC 50/60 Hz (IEC 60947-2)

15 kA at 500 V AC 50/60 Hz (IEC 60947-2)

Rated Service Breaking Capacity (Ics)

40 kA at 220/240 V AC 50/60 Hz (IEC 60947-2)

25 kA at 380/415 V AC 50/60 Hz (IEC 60947-2)

20 kA at 440 V AC 50/60 Hz (IEC 60947-2)

15 kA at 500 V AC 50/60 Hz (IEC 60947-2)

Suitability for IsolationYes (EN/IEC 60947-2)
Utilization CategoryCategory A
Control TypeToggle 
Mounting ModeFixed
Mounting SupportBackplate
Mounting PositionHorizontal, vertical, or flat on the back
Connection TypeFront connection (upside and downside)
Connection Pitch35 mm

Long-Time Pick-Up Adjustment Type (Ir): Adjustable via dials or keypad (9 settings)

Long-Time Pick-Up Adjustment Range: 100–250 A

Long-Time Protection Delay Adjustment Type (tr): Adjustable

Long-Time Protection Delay Adjustment Range

400 s at 1.5 x Ir

16 s at 6 x Ir

11 s at 7.2 x Ir

Thermal Memory20 minutes before and after tripping

Short-Time Pick-Up Adjustment Type (Isd): Adjustable (9 settings)

Short-Time Pick-Up Adjustment Range: 1.5–10 x Ir

Short-Time Protection Delay Adjustment Type (tsd): Adjustable

Short-Time Protection Delay Adjustment Range: 0–0.4 s

I²t ON/OFFSelectable for short-time protection curve

Instantaneous Pick-Up Adjustment Type (Ii): Adjustable

Display TypeLCD (for settings and measurements)
Local Signalling
Flashing LED (green)Ready to operate
LED 90 % Ir (orange)Overload pre-alarm
LED 105 % Ir (red)Overload alarm
Measurement Functions (MicroLogic 5.2 E)

Instantaneous and demand current measurements

Energy metering 

Kilowatt-hour metering

Operational assistance (e.g., peak demand, customized alarms, operation counters)

CommunicationConfigurable for communication with other devices (e.g., via EcoStruxure Power architecture)
Mechanical Durability20,000 cycles
Electrical Durability

20,000 cycles at 440 V In/2

10,000 cycles at 440 V In

10,000 cycles at 690 V In/2

5,000 cycles at 690 V In

Power Dissipation per Pole17.6 W

Number of Slots for Electrical Auxiliaries: 5 slots

IP Degree of ProtectionIP40 (IEC 60529)
IK Degree of ProtectionIK07 (IEC 62262)

Electrical Shock Protection Class: Class II (front face)

Pollution Degree3 (IEC 60664-1)

Ambient Air Temperature for Operation: -25 to 70 °C

Ambient Air Temperature for Storage: -50 to 85 °C

Relative Humidity0–95 %
Operating Altitude0–2000 m without derating; 2000–5000 m with derating
Standards ComplianceEN/IEC 60947-2, CCC, EAC, marine specifications
Product CertificationsIEC, CCC, EAC
Dimensions
Width105 mm (3P), 140 mm (4P)
Height161 mm
Depth86 mm
WeightApproximately 2.4 kg 
HS Code8536.20.90 
Country of OriginFrance 

Delivery & Returns

1. Normal delivery the next business day (The Netherlands). Other countries may take longer, sometimes you have to wait a little longer to get your order, but it's always worth it!
2. Returns, email or call for your RMA number, without RMA number we can not provide a Refund.

Why buy from us

How we stand out:

1. We are a 100% Dutch company with a warehouse in The Netherlands.
2. In stock means really IN STOCK.
3. All Used Industrial Parts are inspected before listing for sale.
4. All Used Industrial Parts come with a DOA warranty and a 6 months warranty.
5. The Biggest inventory! We buy (and sell) "Surplus New", "Used" and "Obsolete" Automation Controls, and Industrial Process Equipment daily, so we are proud of our huge inventory!

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