Schneider C40H3 ComPacT NSX400H Trip Unit 3P

The Schneider Electric C40H3 is a 3-pole ComPacT NSX400H circuit breaker frame rated at 400 A at 40°C, supplied without a trip unit, for electrical power distribution applications. Reaching performance level H, it delivers an ultimate breaking capacity of 70 kA at 380/415 V AC over a working voltage range up to 690 V AC.

Technical specifications:

• Commercial reference: C40H3
• Manufacturer: Schneider Electric
• EAN:
• Series / range: ComPacT NSX new generation
• Product type: Basic frame (without trip unit)
• Number of poles: 3P
• Rated current [In]: 400 A at 40°C
• Rated voltage [Ue]: 690 V AC, 50/60 Hz (IEC 60947-2)
• Rated insulation voltage [Ui]: 800 V AC, 50/60 Hz (IEC 60947-2)
• Rated impulse withstand voltage [Uimp]: 8 kV (IEC 60947-2)
• Network type: AC, 50/60 Hz
• Performance level: H - 70 kA at 415 V AC
• Ultimate breaking capacity [Icu]: 70 kA at 380/415 V AC; 65 kA at 440 V AC; 50 kA at 500 V AC; 20 kA at 660/690 V AC (IEC 60947-2)
• Usage category: Category A
• Mechanical endurance: 15,000 cycles (IEC 60947-2)
• Mounting: Fixed, rear plate
• Connection: 45 mm, front terminals (upper and lower)
• Control: Handle
• IP protection rating: IP40 (IEC 60529)
• IK protection rating: IK07 (IEC 62262)
• Pollution degree: 3 (IEC 60664-1)
• Operating temperature: -25...70°C
• Storage temperature: -50...85°C
• Dimensions (W x H x D): 140 x 255 x 110 mm
• Weight: 4.498 kg
• Standards: EN/IEC 60947-2, UL 60947-4-1

Features and benefits:

• Ultimate breaking capacity of 70 kA at 380/415 V AC provides reliable protection in demanding low-voltage distribution environments
• Supplied without a trip unit, allowing selection of the appropriate protection module to match specific application requirements
• Rated for isolation duty per EN/IEC 60947-2, supporting safe disconnection and maintenance procedures
• 15,000-cycle mechanical endurance ensures dependable long-term operation in high-cycle installations
• Wide operating temperature range of -25 to 70°C enables deployment across varied industrial environments

Applications:

• Main and sub-main low-voltage distribution boards in commercial and industrial facilities
• High-current feeder protection within low-voltage switchgear assemblies
• Power distribution panels requiring a configurable, separately selected trip unit
• Industrial electrical installations operating at up to 690 V AC

Compliant with EN/IEC 60947-2 and UL 60947-4-1. Part of the Schneider Electric ComPacT NSX new generation range.

Also known as: Schneider C40H3, Schneider Electric C40H3, NSX400H circuit breaker frame, ComPacT NSX 400 A frame without trip unit.