BHZ51-100/3 explosion-proof transfer switch BQXN explosion-proof reverse switch

BHZ51-100/3 explosion-proof conversion switch

BQXN explosion-proof reverse switch

Applicable range of BHZ51 explosion-proof transfer switch:
◆ Applicable to explosive gas environment Zone 1 and Zone 2;
◆ Suitable for IIA, IIB and IIC explosive gas environment;
◆ Applicable to the environment with temperature group T1~T6/T4;
◆ It is applicable to explosive hazardous environments such as petroleum extraction, storage, chemical industry, medicine, textile, printing and dyeing, * * * and military facilities;
◆ It is used to connect or disconnect the circuit and switch Power Supply Or load, can also control small capacity Motor

Note: 1. Please indicate the explosion-proof grade of the product when ordering;
2. The built-in components of the brought in cis functional products are different, please specify when ordering
Features of BHZ51 explosion-proof transfer switch:
◆ This product is strictly in accordance with the standards of Electrical Equipment for Explosive Gas Environment and other According to relevant standards, it can work safely and reliably in inflammable and explosive dangerous places.
◆ The housing adopts aluminium alloy Cast, shot blasted, high voltage electrostatic spraying
◆ This series of products are of composite structure, the main chamber is of flameproof structure, and the wiring chamber is of increased safety structure
◆ It is used for infrequent connection or disconnection of electrical lines with AC 50Hz and rated voltage of 220 or 380V
◆ It can be used for switching power supply or load, measuring circuit, etc., and can also control small capacity motors
◆ It can be optionally brought to cis function according to customer requirements
◆ Steel pipe or cable wiring
BHZ51 Explosion proof transfer switch Technical parameters:

BHZ51 Explosion proof transfer switch Quality assurance: This product is under quality control in strict accordance with all the quality management system standards of ISO9001:2008, to ensure that the product quality is higher than the national standard and fully meets the design requirements. The product is guaranteed for three years. Within three years from the date of purchase, the company is responsible for free maintenance of any fault under normal use of the product.

Model of explosion-proof transfer switch: BHZ51-10/2, BHZ51-25/2,BHZ51-10/3，BHZ51-25/3，

BHZ51-60/3，BHZ51-100/3

Model of explosion-proof transfer switch: BZZ51-10/2, BZZ51-25/2,BZZ51-10/3，BZZ51-25/3，

BZZ51-60/3，BZZ51-100/3

Model of explosion-proof transfer switch: CBZK-10/2, CBZK-25/2,CBZK-10/3，CBZK-25/3，CBZK-60/3，CBZK-100/3

BHZ51-10/3 Explosion proof Transfer Switch

BHZ51-25/3 explosion-proof transfer switch

BHZ51-60/3 explosion-proof transfer switch

BHZ51-100/3 explosion-proof transfer switch

Explosion proof reversing switch 100A

Front: brief introduction

Reverse switch is also called transfer switch. Its function is to connect and disconnect the power supply or load, which can make the motor rotate forward or reverse. It is mainly an electrical component used for positive and negative conversion of three-phase small power motor, but it cannot be used as an automation component.

Second: Scope of application

1. Zone 1 and Zone 2 dangerous places.

2. Class IIA, IIB, IIC * * gas environment.

● Note: indicate when Class IIC is required

Third: technical parameter

Model: BQXN

Brand: Hope

Rated voltage: 220v, 380v

Rated current: 60A, 100A

Explosion proof sign: Exed II BT6, Exed II CT6

Cable outer diameter: 10~22mm

Fourth: Product features

1. Cast aluminum alloy shell with plastic sprayed surface

2. The built-in change-over switch is used in the electrical circuit with the current below 60A as the power introduction switch, and can control the motor starting, speed changing, stopping, reversing, etc

3. Steel pipe or cable wiring is acceptable

4. Comply with GB3836-2000 and IEC60079 standards

Fifth: Operating principle

◆ The three-phase power supply provides a rotating magnetic field to make the three-phase motor rotate. Due to the different connection methods of the three phases of the power supply, the magnetic field can rotate clockwise or counterclockwise. To change the direction of rotation, it is only necessary to change the phase sequence of any two phases of the motor power supply. If the original phase sequence is A, B, C, it only needs to be changed to A, C, B or C, B, A. The general reverse switch has two rows of six terminals, and the phase modulation contacts through the middle contact commutation to achieve the purpose of phase change. Take the reversing switch of three-phase motor as an example: set the incoming line A B. The outgoing line of three phases C is also A-B-C. Because three phases ABC are separated by 120 degrees, they are connected into a circle. Let ABC on this circle be clockwise. When connected to the motor, the motor rotates clockwise.

◆ If B When C is switched, A remains unchanged, making the outgoing line of the switch A-C-B, then the ABC arrangement on the circumference becomes counterclockwise. When connected to the motor, the motor also rotates counterclockwise This change-over switch is the reverse switch.

If its handle is pulled to the left, the outgoing line is A-B-C;

If its handle is pulled to the middle, A-B-C is all disconnected and in the off state;

If its handle is pulled to the right, the outgoing line is A-C-B, and the rotation direction of the motor is opposite to that of pulling to the left

Sixth: Application:

◆ At present, the reverse switch is mainly used in the field where the equipment needs to rotate in both positive and negative directions, such as electric vehicles, cranes, elevators, elevators, etc.

◆ The reverse switch has three positions, the middle one is the separate position, and the reverse direction of the motor moving to one side is opposite to the reverse direction of the other side, in short, it controls the forward and reverse direction of the motor.

BQXN-60A Explosion proof Reverse Switch

BQXN-100A Explosion proof Reverse Switch

BQXN-100A explosion-proof reversing switch (large)