Description
Product Overview
This ComPacT NSX250N is a complete 3P 3D fixed circuit breaker designed to optimize space and breaking capacity. It is an optimal choice for all standard and specific applications. The breaking capacity (Icu) is 50kA rms at 415VAC 50/60Hz. The operational voltage is 690VAC 50/60Hz. This product embeds a 250A rating thermal-magnetic trip unit (TMD). TMD trip unit provides an adjustable thermal overload protection and a fixed magnetic protection.
This 3 poles version has dimensions 10.5 cm (W) x 16.1 cm (H) x 8.6 cm (D) and comes with a variety of optional functions and accessories. It is compliant with international standards IEC 60947, CCC, EAC and marine specifications. ComPacT NSX250N is part of Schneider Electric EcoStruxure Power architecture.
Technical Specifications
Range: ComPacT
Device short name: NSX250N
Poles description: 3P
Protected poles description: 3D
Rated current (In): 250 A at 40 °C
Rated operational voltage (Ue): 690 V AC 50/60 Hz
Network type: AC
Breaking capacity (Icu): 90 kA at 220/240 V AC 50/60 Hz; 50 kA at 380/415 V AC; 50 kA at 440 V AC; 36 kA at 500 V AC; 35 kA at 525 V AC; 10 kA at 660/690 V AC
Trip unit name: TM-D (Thermal-magnetic)
Control type: Toggle
Mounting mode: Fixed
Rated insulation voltage (Ui): 800 V AC 50/60 Hz
Impulse withstand voltage (Uimp): 8 kV
Mechanical durability: 20000 cycles
Electrical durability: 20000 cycles at 440 V In/2; 10000 cycles at 440 V In; 10000 cycles at 690 V In/2; 5000 cycles at 690 V In
Power dissipation per pole: 18.75 W
Mounting support: Backplate
Mounting position: Horizontal and vertical; Flat on the back
Connection pitch: 3.5 cm
Protection type: L : for overload protection (thermal); I : for short-circuit protection (magnetic)
Trip unit rating: 250 A at 40 °C
Long-time pick-up adjustment type Ir (thermal protection): Adjustable
Long-time protection pick-up adjustment range: 0.7…1 x In
Long-time protection delay adjustment type tr: Fixed
Long-time delay adjustment range: 120–400 s at 1.5 x In; 15 s at 6 x Ir
Instantaneous protection pick-up adjustment type Ii: Adjustable
Instantaneous protection pick-up adjustment range: 5…10 x In
Earth-leakage protection: Without
Dimensions (W x H x D): 10.5 cm x 16.1 cm x 8.6 cm
Net weight: 2.4 kg
Environmental and Compliance Data
Standards Complied: EN/IEC 60947-2
IP Degree Of Protection: IP40
Electrical Shock Protection Class: Class II on front face
Pollution Degree: 3 conforming to IEC 60664-1
Operating Ambient Temperature: -25 to 70 °C
Storage Ambient Temperature: -50 to 85 °C
Relative Humidity: 0 to 95 %
Operating Altitude: 0 to 2000 m without derating; 2000 m to 5000 m with derating
Customs Tariff Code: 85362010
