Schneider Electric Compact NSX View all products

Compact NSX is the next-generation circuit breaker.

A power monitoring unit enhances their invariably impeccable protective functions. For the first time, users can monitor both energy and power, offering new performance in a remarkably compact device.

• Integrated monitoring
• New breaking capacities at 690 V
• 100% service continuity
• Simplicity of installation and use

• Benefits

  Direct access to energy efficiency

  • Safety and protection
  • Energy measurement and control
  • Increased energy availability

• Applications

  Protection and management of LV electrical installations:

  • Standard applications:  industries, buildings, infrastructures
  • Specific applications demanding high performance at controlled cost: Marine, Oil and Gas extraction and processing, mining operations, metals and minerals production, and data centers
  • Motor protection
  • Control and isolation using switch disconnectors
  • Source-changeover systems
  • The world's highest rated breaking capacity for the most demanding electrical installations, and ideal for high-efficiency, cost effective 690 V systems

Addition of the Vigi module does not alter circuit-breaker characteristics:

1. compliance with standards degree of protection
2. class II front-face insulation
3. positive contact indication electrical characteristics
4. trip-unit characteristics installation and connection modes indication
5. measurement and control auxiliaries installation and connection accessories.

Compliance with standards 

1. IEC 60947-2, annex B.
2. Decree dated 14 November 1988 (for France).
3. IEC 60755
4. class A immunity to DC components up to 6 mA operation down to -25 °C as per VDE 664

Remote indications

Vigi modules may be equipped with an auxiliary contact (SDV) to remotely signal tripping due to an earth fault.

Use of 4-pole Vigi module with a 3-pole Compact NSX

In a 3-phase installation with an uninterrupted neutral, an accessory makes it possible to use a 4-pole Vigi module with connection of the neutral cable.

Power supply

Vigi modules are self-supplied internally by the distribution-system voltage and therefore do not require any external source. They continue to function even when supplied by only two phases.