Explosion proof control switch

1、 Product NameExplosion proof control switch

2、 Sign purchase and sales contracts through authentic methods

3、 Both parties shall fulfill their responsibilities and obligations as stipulated in the contract

Four,

5、 Location:Fangdouyan Industrial Zone, Liushi Town, Yueqing City, Wenzhou City, Zhejiang Province

6、 The delivery deadline is within three days from the date of payment by the buyer

Explosion proof control switchperformance

Note 1: Grounding of neutral wire;

Note 2: The numerator of rated power for AC-23A, AC-3, and AC-4 represents 3 phases and 3 levels, the denominator represents 1 phase and 2 levels, and AC-2 represents 3 phases and 3 levels.

Mechanical and electrical lifespan

Mechanical lifespan: 0.1 × 106 cycles The operating frequency is 120 times per hour.

Electric lifespan: 0.03 × 106 cycles The operating frequency is 120 times/hour

Scope of Application

Universal transfer switch is mainly suitable for electrical circuits with AC 50Hz, rated working voltage of 380V and below, DC voltage of 220V and below, and rated current up to 160A Universal conversion is mainly used for the conversion of various control circuits, commutation measurement and control of voltmeters and ammeters, conversion and remote control of distribution equipment circuits, etc. The universal transfer switch can also be used to directly control the starting, speed regulation, and commutation of small capacity motors.

Technical Features

The universal transfer switch has a wide range of applicability, including various switches such as LW2, LW5, LW6, LW8, LW12, LW15, HZ5, HZ10, HZ12, as well as transfer switches on imported equipment in China. The derivative products of universal transfer switches include padlock type switches and concealed lock type switches (63A and below), which can be used as power cut-off switches for important equipment to prevent misoperation and control the operation of unauthorized personnel.

Universal transfer switch has the advantages of small size, multiple functions, compact structure, exquisite material selection, good insulation, flexible transfer operation, and safety and reliability.

The universal transfer switch has a complete range of specifications, including 10A, 20A, 25A, 32A, 63A, 125A, and 160A current levels.

structural composition

Universal transfer switch is a multi circuit control electrical device composed of multiple sets of contact components with the same structure stacked together. It consists of an operating mechanism, positioning device, contacts, contact system, shaft, handle and other components.

The contact is located inside the insulating base and has a double break point contact bridge structure. The moving contact is designed to be automatically adjustable to ensure synchronization during on/off, while the stationary contact is installed inside the contact seat. When in use, it relies on the cam and bracket to operate and control the closing and opening of the contacts.

The operation process is to use the handle to drive the shaft and cam to push the head to connect or disconnect. Due to the different shapes of the cam, the powder and condition of the contact are different when the handle is in different positions, thus achieving the purpose of converting the circuit.

The commonly used products are LW5 and LW6 series. The LW5 series can control small capacity motors of 5.5kW and below; The LW6 series can only control small capacity motors of 2.2kW and below. When used for reversible operation control, reverse starting is only allowed after the motor has stopped. The LW5 series universal transfer switch can be operated in two ways according to the handle: self resetting and self positioning. The so-called self resetting refers to the automatic return of the handle to its original position when the handle is manually moved to a certain gear and released; Positioning type refers to when the handle is placed in a certain gear, it cannot automatically return to its original position and stops at that gear.

1. The ambient air temperature shall not exceed+40 ° C, and the average temperature within 24 hours shall not exceed 35 ° C.

2. The lower limit of ambient air temperature shall not exceed -5 ° C.

3. At a high temperature of+40 ° C, the relative humidity of the air does not exceed 50%. At lower temperatures, higher relative humidity is allowed, such as reaching 90% at 20 ° C. Special measures should be taken for occasional condensation caused by temperature changes.

4. The surrounding environment should have clean air, no flammable or combustible materials, no gases that can damage insulation and metals, and no conductive dust.