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  Domestic recent development is rapid, high and low voltage power distribution ark after half a century of development and research, has now forme...

  • XGN66A-12 Case fixed metalclad movable s...
  • MNSLow voltage withdrawable switchgear
  • GCKLow voltage withdrawable switchgear
  • GGD Low-voltage Switchgear
  • XL-21AC power panel
  • KYN61-40.5Metalclad movable switchgear
  • KYN28A-12Metalclad movable switchgear
  • HXGN-12 Case-fixed ring main unit
  • XGN2-12Case fixed metal enclosed switchg...

XGN66A-12 Case fixed metalclad movable switchgear

XGN66A-12 Case fixed metalclad movable switchgear (hereinafter called switchgear), is used in the system of rated voltage 3.6 ~ 12KV three-phase, AC50Hz, to receive and distribute electricity, suits for frequently switching, or reconstruction of switchgear with oil type breaker. Busbar system is single busbar system or single busbar with branches.
Comply with GB3906 AC metal-enclosed switchgear and controlgear for rated voltages above 3 kV and up to and including 35 kV, DL/T404 Purchase technical specifications for indoor AC high voltage switchgear, IEC60298 AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV standard.The switchgear has good figure, small size, provides complete prevention of wrong operation. The main switch of the switchgear adopted VS1-12 or ZN28-12 vacuum circuit breaker type GN30-12 or GN19-12 isolator, and JN15-12 earth switch.

MNSLow voltage withdrawable switchgear

MNS series low voltage withdrawable switchgear (hereinafter called “switchgear”) is improved and developed by our company referring to MNS series switchgear of Swiss ABB, is one of advanced low voltage draw-out switchgear. This product consists of standardized modules, furthermore each withdrawable unit has reliable mechanical interlock device, make it more safe and reliable during operating. 
This series of switchgear is suitable for operating in the 3-P, 5-W power distribution system of AC 50(60) Hz, rated working voltage 400V, 660V, rated current 5000A and below, for power generating plant, substation, mineral enterprises, building or hotel, airport, dock, broadcast TV center and etc, used for power generation, transmission and distribution, transfer electric energy and the control of electric consumers, moreover capacitor bank can compensate the reactive power for their system.
Comply with GB7251.1-2005 Low voltage switchgear and controlgear, IEC60439-1 Low voltage switchgear and controlgear standard.  


Normal service conditions
■ When  the ambient air temperature is -15℃-+40℃, the mean value is no greater than+35℃ with in 24 hours. 
■ Altitude: not higher than 2000m for the installation site. 
■ Relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃, while special measures shall be taken for the condensation occasionally produced due to temperature change. 
■ ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.

GCKLow voltage withdrawable switchgear

GCK Low voltage withdrawable switchgear is widely used in power generating plant, metallurgy rolled steel, textile, seaport and dock, high building, hotel and etc, operating in the system of AC 3-phase 4-wire or 5-wire, voltage 380V, 660V, frequency 50Hz, rated current 5000A and below, to distribute electricity and centrally control motors.
GCK switchgears had been tested completely, awarded CCC certificate, a super low voltage switchgear to be assembled. Comply with GB7251.1-2005 Low voltage switchgear and controlgear, IEC60439-1 Low voltage switchgear and controlgear standard.  
Normal service conditions
■ When  the ambient air temperature is -15℃-+40℃, the mean value is no greater than+35℃ with in 24 hours. 
Note: if the upper limit is higher than +40℃ or lower limit lower than -5℃ in work, discussions  shall be made between the user and the manufacturer. 
■ Altitude: not higher than 2000m for the installation site. 
■ Relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃, while special measures shall be taken for the condensation occasionally produced due to temperature change. 
■ Storage ambient temperature: -25℃~+55℃; No greater than+70℃ with in 24 hours. 
■ The ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.
Notes: If the operating conditions exceed the normal conditions, please contact our technical department.

GGD Low-voltage Switchgear

GGD low voltage switchgear is widely used in the distribution system of AC50Hz, rated voltage 380V, rated current up to 5000A, to transfer, distribute and control electricity and electric equipment such as lighting, motor and etc.
The product has such features of high breaking capacity, good dynamic and thermal steady ability, electric schemes are various, free combination, practical, new structure, high protection grade and etc. this switchgear can be use to replace the old equipment with similar use.
Comply with GB7251.1-2005 Low voltage switchgear and controlgear, IEC60439-1 Low voltage switchgear and controlgear standard.  

XL-21AC power panel

XL-21(G)X type low voltage enclosed power panel, is suitable for operating in the system of AC 500V and below, 3-phase 3-wire, 3-phase 4-wire or 3-phase 5-wire in power generating plant or mineral enterprises, for lighting and distribution, with such features: various schemes, free combination, practical, new structure and etc. 
Structural characteristics
■ Main electric performances comply with the standard of IEC60439-1: 1992 and GB7251 .1-1997
■ Auxiliary circuit can perform local, remote, and automatic control, and shift between these controlling modes, contactor can be controlled and protected by DC.
■ Main breaker of incoming line provide instantaneous trip and thermal magnetic trip as optional, in order to perform the selective protection with downstream breaker, this instantaneous trip is cancelled, which can prevent leapfrog tripping, able to be switched automatically, by hand, or auto-shift.
■ Main breaker of incoming line has the protection of instantaneous trip and thermal magnetic trip, leakage protection can be provided if user required.
■ The circuit for motor control has the protection of short circuit instantaneous trip, overloading trip, under-voltage release and phase failure.
■ Incoming circuit assembled with ammeter and voltmeter. 

KYN61-40.5Metalclad movable switchgear

KYN61-40.5 Switchgear installed with excellent ZN85, ZN85B vacuum circuit breaker or Schneider SF1, SF2, or ABB HD4 or ALSTOM FP series SF6 circuit breaker, switchgear body is of compartment structure with beautiful figure, its busbar covered by heat shrinkable material or epoxy resin painting, optimized polar figure, the structure is compact, complete 5-prevent provided.

KYN61-40.5 Switchgear operated in the power system of 40.5KV, three phases AC 50Hz, used to control, protect and monitor the distribution circuit of power generating plant, substation, mineral enterprises and etc to distribute electric energy. Also it can be used to switch frequently on/off the circuit. Comply with GB3906 AC metal-enclosed switchgear and controlgear for rated voltages above 3 kV and up to and including 35 kV, GB/T11022 Common specifications for high-voltage switchgear and controlgear, IEC60298, IEC62271-200 AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV, IEC60694 Common specifications for high-voltage switchgear and controlgear standard. 

Normal service conditions

■ Ambient air temperature:  Maximum air temperature: +40℃, Minimum air temperature: -15℃ (Under a special process, up to -45 ℃);

■ Altitude: ≤ 1000m;

■ Humidity:Daily average value of relative humidity: ≤95%

Monthly average value of relative humidity: ≤90%

■ Earthquake grade less than Degree 8

■ The ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.

■ No serious contamination and severe vibration recurrent, severe degree designed to meet the harsh conditions of Class 1 requirements; 

■ When used in excess of the normal environmental conditions specified in GB3906, negotiated by the user and the manufacturer. 

Note:① relative humidity greater than 70% should be turned on the electric heater. 

??② Where 1000m altitude over the place, according to JB/Z102-71 regulations.


KYN28A-12Metalclad movable switchgear

KYN28A-12(GZS1-12) metalclad movable switchgear is suitable for operating in the power system of three phases, rated voltage 12KV, rated frequency 50Hz, to receive and distribute electricity and control, protect, and monitor the line. Complied standards:  
Comply with GB3906 AC metal-enclosed switchgear and controlgear for rated voltages above 3 kV and up to and including 35 kV, GB/T11022 Common specifications for high-voltage switchgear and controlgear, IEC60298 AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV, DL/T404 Purchase technical specifications for indoor AC high voltage switchgear standard.  
Normal service conditions
■ Ambient air temperature:  Maximum air temperature: +40℃, Minimum air temperature: -15℃ (Under a special process, up to -45 ℃);
■ Altitude: ≤ 1000m;
■ Humidity:Daily average value of relative humidity: ≤95%
Monthly average value of relative humidity: ≤90%
■ Earthquake grade less than Degree 8
■ The ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.
■ No serious contamination and severe vibration recurrent, severe degree designed to meet the harsh conditions of Class 1 requirements; 
■ When used in excess of the normal environmental conditions specified in GB3906, negotiated by the user and the manufacturer. 
Note:① relative humidity greater than 70% should be turned on the electric heater. 
??② Where 1000m altitude over the place, according to JB/Z102-71 regulations.



HXGN-12 Case-fixed ring main unit

HXGN17-12 Case-fixed ring main unit (abbr. as RMU), of rated voltage 12KV, rated frequency 50Hz, high voltage AC equipment, mainly used in three phase AC ring main system, termination distribution system, and industrial power distribution, to receive and distribute electricity and protect the circuit, also it can be installed in kiosk substation. Comply with GB3906 AC metal-enclosed switchgear and controlgear for rated voltages above 3 kV and up to and including 35 kV, GB/T11022 Common specifications for high-voltage switchgear and controlgear, IEC60298 AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV, IEC60694 Common specifications for high-voltage switchgear and controlgear standard.  
Normal service conditions
■ Ambient air temperature:  
   Maximum air temperature: +40℃, 
   Minimum air temperature: -15℃;
■ Altitude: ≤ 1000m;
■ Humidity:
   Daily average value of relative humidity: ≤95%
   Monthly average value of relative humidity: ≤90%
   The ambient air is not significantly polluted by dust, smoke, corrosive and/or flammable gases, vapours or salt.

XGN2-12Case fixed metal enclosed switchgear

XGN2-12 Case fixed metal enclosed switchgear (hereinafter called switchgear), is used in the system of rated voltage 3.6, 7.2, 12KV three-phase, AC50Hz, to receive and distribute electricity, especially suits for frequently switching, single busbar system (single busbar with branches or dual busbar system available).
Comply with GB3906 AC metal-enclosed switchgear and controlgear for rated voltages above 3 kV and up to and including 35 kV, IEC60298 AC metal-enclosed switchgear and controlgear for rated voltage above 1 kV and up to and including 52 kV standard.  Five- prevents interlock functions provided.
The main switch of the switchgear adopted ZN28A-12, ZN12-12 or VS1-12 vacuum circuit breaker operated by CD7 electromagnetic mechanism or CT17/19 series spring mechanism, and type GN30-12 rotation type isolator or GN22-12 large current isolator     

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    ZHEJIANG COTTOH ELECTRIC CO.,LTD. is the production and sales of high-voltage switchgear low-voltage electrical equipment, mechanical and electrical installation engineering support and mine engineering design, construction, installation, commissioning, testing and maintenance of train service enterprises.

    The company has passed the ISO9001, ISO14001, OHSAS18000 system certification; distribution of all products through the National Quality Certification Center CCC mandatory product certification by the Limited by Share Ltd; Tian An insurance product liability insurance. At the same time, the company continued to strengthen cooperation with international well-known enterprises, to launch new products and new technologies, enhance the company's rand effect; and the company has a number of years engaged in research and development...

Add:Yueqing city, zhejiang province, liu town Cao Tian industrial zone liu huang road no. 3666 hotline: 0086-577-61673333  
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