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Universal circuit breaker

Universal circuit breaker
Universal circuit breaker
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Product Code : SM
Price And Quantity
  • Minimum Order Quantity
  • 100 Piece
  • Price
  • 0.5-9999 USD ($)
Product Specifications
  • Product Type
  • circuit breaker
Product Description

Universal circuit breaker Normal Operation and Installation Conditions

Ambient temperature: -5°C – +40°C, and the average temperature is not exceeding +35°C within 24 h;

Attitude: Not higher than 2CX)0 m. The capacity should be decreased if the altitude is above 2000m

  • Humidity: When the ambient air temperature is +40 °C, the relative humidity of the air shall not be higher than 60%, a higher relative
    • humidity is allowed at a lower temperature. For example, the relative humidity should be 90% when temperature is 20°C. Special measures should be adopted for the condensation occasionally produced due to temperature change.

Pollution degree: 3

The circuit breaker can be used In electromagnetic environment A Installing category: IV for main circuit; III for other auxiliary and control circuits;

The vertical gradient: no more than 5°


The breaker shall be grounded substantially Power loss

Power loss is the total loss measured wt>en the breaker is charged with the rated current

Breaker type

Rated current W

Withdrawable (w)

Fixed type (w)

630

24

15

800

39

25

1000

61

40

SMW8-2000

1250

87

54

1600

128

64

2000

160

150

80

2000

80

2500

180

100

2900

230

250

120

SMW8-3200

3200

130

4000/3P

270

-

4000/4P

290

-

SMW8-6300

5000

6300

330

360

•

The data and parameters in the above technical docunentation result from tests and theoretical calcuiation, and can only bu used as a general type selection guide. Tbey cannot replace industhai pratcai experience or proof test.

 

Mounting Ambient: There must be no explosive medium, no gas which would corrode metal or any conducting dust which wouid destroy the insulation;

  • The circuit breakers should be installed in the compartment of switchgear cabinet with doorframes fixed additionally. Protection grade is up to IP40.

Installation

Follovviog items to be checked before installation

Check the label plate on the breaker panel to see if it conforms to the specifications of the ordered goods Rated current;

Voltage and time delay of under voltage release;

Voltage of shunt retease;

Vottage of closing coil;

Voltage of motorized operating mechanism.

Before installation, operation, maintenance and inspection, you shall read this manua), and consult the manufacturer for questions if any. Preparations before installation

Before the breaker i$ installed, check the Insulation resistance of the breaker by using a 1CXX3V megohmmeter according to regulations; when the surrounding media temperature is                      and the relative humidity is 5%-70%. the insulation resistance shall not be less than 20 megohm.

The place with the insulation re^stance to be tested includes: the place between various phases and between varioiis phases and the frame when the breaker is closed; the place between in-ar>d out-iines of various phases when the breaker is switched off.

Installation of the fixed type breaker

Place the breaker into tf>e distribution cabinet, and fasten it by using 4 pieces of M6 {lnm=1600 ^ or M10 (Inm=3200 A or above) bolts and washers; the breaker shall be installed stably with no d=additional mechanical stress to avcrid damage of the breaker or bad contact of the main bus bar and the secondary circuit. After the work is completed, mount the body into the draw-out socket.

The specification of the wiring copper bars for the primal circuit of Ihe breaker shall meet the copper bar specification used under the conditions of conventional heating in IEC60947-2.

Trade Information
  • Payment Terms
  • Telegraphic Transfer (T/T), Letter of Credit (L/C), Delivery Point (DP), Days after Acceptance (DA)
  • Supply Ability
  • 10000 Piece Per Month
  • Delivery Time
  • 20-30 Days
  • Sample Available
  • Yes
  • Sample Policy
  • Contact us for information regarding our sample policy
  • Main Export Market(s)
  • Africa, Middle East, Western Europe, Eastern Europe, South America, North America, Central America, Australia, Asia

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