Schneider universal circuit breaker NS series (fixed) installation

◆Installation overview

The fixed shape Schneider Compact NS series 630b-1600A specification universal circuit breaker can be installed vertically, horizontally or flat-mounted on the back. Its characteristics are not affected. The connection type is front-board connection.

◆Bus installation

The Schneider universal circuit breaker Compact NS series 630b-1600A, which is connected to the front of the fixed board, is equipped with a terminal block composed of an external screw for direct connection to the bus. Other busbar connections include vertical connection adapters along the side busbars and extenders that increase the pole spacing to 95mm. If the vertical connection adapter is in the front direction, an arc extinguishing grid must be installed to meet the safety clearance requirements.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Bare cable installation

The universal circuit breaker can connect up to 4 240 square millimeter copper or aluminum cables with a special set of joints and terminal shields for each phase.

◆Cable installation with crimping terminal

The cable crimp terminal adapter and vertical connection adapter can be used together to connect 1 to 4 cables with crimp crimp terminals (≤300 mm2). To ensure stability, spacers must be placed between the terminal extensions. If the cable crimping terminal adapter is installed on the top of the arc extinguishing chamber, an arc extinguishing grid must be installed to meet the safety clearance requirements.

Schneider universal circuit breaker NS series (drawer type) installation

Three positions of the circuit breaker on the frame:

●"Connect" position: The main circuit and control circuit are all connected.

●"Test" position: The main circuit is disconnected, the control circuit is still connected, and the circuit breaker can realize electrical operation.

●"Exit" position: the main circuit and the control circuit are all disconnected, but the universal circuit breaker can be operated manually (ON, OFF, "Push to trip" in the chassis)-electric operation is not "Push to trip" Button).

The matching characteristics of Schneider universal circuit breaker Compact NS series 630b-1600A specification multi-function chassis and the main body include:

●The connection and withdrawal of the circuit breaker use a forward and backward handle that can be stored in the chassis to swing in or out;

●Three positions (connect, test and exit) indication:

○Indicated by position indication contact;

○Remote instructions through the chassis contacts (3 connection positions, 2 exit positions, 1 test position);

●The circuit breaker on/off can be operated through the front panel of the circuit breaker.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.


The universal circuit breaker can be locked in various ways:

1. The chassis can be locked in the connection, exit and test positions, and three padlocks and two key locks on the front panel of the chassis can be used

. 2. When the Schneider circuit breaker is connected or withdrawn, it can be locked in the connection, withdrawal and test position. To move from one position to another requires pressing the release button to release the forward and backward handles.

Schneider universal circuit breaker NS series control circuit diagram

The Schneider Compact NS series 630b-1600A (fixed) circuit diagram shows the state of the circuit disconnected, the universal circuit breaker is opened, connected, stored energy and the relay is in the normal position. The specific conditions are as follows.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆A control unit:

●Z1-Z5 zone selective interlock; Z1=ZSI output power; Z2=ZSI output; Z3=ZSI input power; Z4=ZSI input (short delay); Z5=ZSI input (ground fault); M1=Vigi module enter.

●T1, T2, T3, T4 connect with neutral wire; M2, M3=Vigi module input.

●F2+, F1- external 24VDC power supply.

◆Remote operation:

●MN undervoltage trip coil or MX shunt trip coil;

●Motor mechanism module A4 electrical opening command; A2 electrical closing command; B4, A1 control equipment and gear motor power input.

●Spring energy storage motor 440/480V AC (380V electric operation + additional resistance).

Schneider universal circuit breaker Compact NS series 630b-1600A (fixed) control circuit diagram is shown below.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Status indication contact:

OF3/OF2/OF1: opening/closing indication contact;

SDE: fault trip indicating contact (short circuit, overload, ground fault);

SD: Trip indicator contact (manual operation);

CAF2/CAF1: Pre-closing indication contact (for rotating handle);

CAO2/CAO1: Pre-opening indication contact (for rotating handle).

The Schneider Compact NS series 630b-1600A (drawer type) circuit diagram shows the state of the circuit disconnected, the universal circuit breaker is opened, connected, stored energy and the relay is in the normal position. The details are as follows.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆A control unit:

●UC1: Z1-Z5 zone selective interlock; Z1=ZSI input power; Z2=ZSI output; Z3=ZSI input power; Z4=ZSI input (short delay); Z5=ZSI input (ground fault); M1= Vigi module input.

●UC1: T1, T2, T3, T4 are connected to the neutral line; M2, M3=Vigi module input.

●UC1: F2+, F1- external 24VDC power supply.

◆Remote operation:

●MN undervoltage trip coil or MX shunt trip coil;

●Motor mechanism module A4 electrical opening command; A2 electrical closing command; B4, A1 control equipment and gear motor power input.

●Spring energy storage motor 440/480V AC (380V electric operation + additional resistance).

Schneider universal circuit breaker Compact NS series 630b-1600A (drawer type) control circuit diagram is shown below.

Transmitter|Encoder|Soft starter|Power supply|VFD|Light curtain|Servo products|Human-machine interface|Solenoid valve|Cylinder|Actuator|Flow meter|Transformer|Thyristor|Sensor|Deceleration drive gearbox reducer|Linear guide|Circuit breaker|Refrigeration compressorAll industrial products of okplazas are purchased from the original factory or formal channels of agents to ensure the original authenticity, which perfectly solves the problem of industrial product sample procurement and small-batch procurement for the majority of engineers and purchasing personnel.

◆Status indication contact:

OF3/OF2/OF1: opening/closing indication contact;

SDE: fault trip indicating contact (short circuit, overload, ground fault);

SD: Trip indicator contact (manual operation);

CAF2/CAF1: Pre-closing indication contact (for rotating handle);

CAO2/CAO1: Pre-opening indication contact (for rotating handle).

◆Position indicating contact:

CD2 exits the CD1 position;

CE3 is connected to CE2 at CE1;

CT1 experiment location.

The above is the installation and control circuit diagram of Schneider universal circuit breaker NS series, I hope it can help everyone. You can log in to the okplazas.com motor mall to view Schneider Electric related product information, welcome to email: [email protected] for consultation, and you can also contact WeChat +86-13689242098customer service online for product consultation!