ComPact NSX Range

Description

The ComPact NSX alternating current (AC) range consists of

Circuit breakers and switch-disconnectors operating on alternating current:
- 1-pole circuit breakers from 16 to 250 A, up to 240 Vac
- 2-pole circuit breakers from 16 to 160 A, up to 690 Vac
- 3 and 4-pole circuit breakers and switch-disconnectors from 16 to 630 A, up to 690 Vac
- 3 and 4-pole circuit breakers 250 A and 400 A, up to 1 000 Vac
A set of standard accessories and auxiliaries shared with the ComPact NSX DC range

The ComPact NSX range covers the following applications:

Electrical distribution protection
Specific protection for receivers (for example, motors, transformers) or generators

The ComPact NSX range is compliant with the following standards:

IEC/EN 60947-2 for circuit breakers
IEC/EN 60947-3 for switch-disconnectors
IEC/EN 60947-2 and IEC/EN 60947-4-1 for motor protection circuit breakers
UL 60947-4-1 for motor protection circuit breakers
CSA-C22.2 No.60947-4-1 for motor protection circuit breakers

Convention

In this guide, the term circuit breaker covers circuit breakers and switch-disconnectors.

Fixed Circuit Breaker

A Sealable terminal shields

B Interphase barriers

C PowerTag Energy M250 or M630

D BSCM module

E Indication contact

F Wireless indication auxiliary

G Voltage release

H SDTAM module

I SDx module

J NSX cord

K Motor mechanism

L Extended rotary handle

M Direct rotary handle

N Terminal extensions

O Rear connectors

P Cable connectors

Q One-piece spreader

R Toggle handle

Withdrawable or Plug-in Circuit Breaker

A Sealable long terminal shields for plug-in base

B Interphase barriers

C Automatic withdrawable auxiliary connector

D Manual auxiliary connector

E Chassis side plate for withdrawable circuit breaker

F Adapter

G VigiPacT Add-on Alarm

H PowerTag Energy M250 or M630

I Circuit-breaker side plate

J Power connections for circuit breaker with VigiPacT Add-on

K Power connections

L Circuit-breaker plug-in base

M Lugs

N Rear connectors

O Terminal extensions

P Cable connectors

Q Rear connectors

R Adapter

Trip Units and Trip Unit Accessories

A TM-D, TM-G, or MA trip unit

B MicroLogic 1 or 2 trip unit

C MicroLogic 5 or 6 trip unit

D VigiPacT Add-on for additional earth-leakage protection or VigiPacT Add-on Alarm

E MicroLogic 4 trip unit with earth-leakage protection

F MicroLogic 7 trip unit with earth-leakage protection

Identification

The faceplate on the front of the circuit breaker identifies the circuit breaker and its characteristics.

The faceplate depends on the breaking performances:

A Device size and rated current

B Ui: rated insulation voltage

C Uimp: rated impulse withstand voltage

D Ics: rated service short-circuit breaking capacity

E Icu: rated ultimate short-circuit breaking capacity

F Ue: rated operational voltage

G Type of device: circuit breaker or switch-disconnector, suitable for isolation

H Standards

I Color code indicating breaking performance

NOTE: R, HB1, HB2, and K breaking performances are not compatible with MicroLogic 4 and 7 trip units.

NOTE: For extended rotary handles, open the door to view the faceplate label.

ComPact NSX400K 1000 Vac Circuit Breaker

The ComPact NSX400K circuit breaker is dedicated to applications up to 1000 Vac, photovoltaic systems at 800 Vac, wind turbines, and mining applications.

A ComPact NSX400K circuit breaker has the following characteristics:

K breaking performance at 1000 Vac
Ultimate breaking capacity Icu = 36 kA at 800 Vac; 10 kA at 1000 Vac
Service breaking capacity Ics = 10 kA at 800/1000 Vac
Supplied with a non-interchangeable MicroLogic 2.3 trip unit without test port
Two adjustable ratings: 250 A and 400 A
3–pole and 4–pole

The following restrictions apply to ComPact NSX400K circuit breakers:

Not compatible with plug-in base or chassis
No communication available
No reverse feeding. Top-fed only.

Dial Settings

The dial positions on the front of the trip unit set the circuit breaker pickup settings.

Example 1: TM-D thermal-magnetic trip unit

A Setting range for TM-D thermal-magnetic trip unit

B Adjustment dial for the thermal protection pickup Ir

C Adjustment dial for the magnetic protection pickup Ii (for TM-D 200/250 only)

Example 2: MicroLogic 2 and MicroLogic 4 electronic trip units

A Trip unit adjustment range

B Adjustment dials for the long-time protection pickup Io and Ir

C Adjustment dial for the short-time protection pickup Isd

D Adjustment dial for the earth-leakage current pickup IΔn

E Adjustment dial for the earth-leakage time delay Δt

Trip Unit Settings

For MicroLogic 5, 6, and 7 electronic trip units, read all settings on the display unit. For more information, refer to DOCA0141EN, ComPact NSX MicroLogic 5/6/7 Electronic Trip Units - User Guide.