Home > Kjz-1260/1140(660)-2y Mine-used Flameproof and Intrinsically Safe Low-voltage Permanent Magnet Mechanism Combined Vacuum Feeder Switch

Kjz-1260/1140(660)-2y Mine-used Flameproof and Intrinsically Safe Low-voltage Permanent Magnet Mechanism Combined Vacuum Feeder Switch

Kjz-1260/1140(660)-2y Mine-used Flameproof and Intrinsically Safe Low-voltage Permanent Magnet Mechanism Combined Vacuum Feeder Switch thumbnail-1
Kjz-1260/1140(660)-2y Mine-used Flameproof and Intrinsically Safe Low-voltage Permanent Magnet Mechanism Combined Vacuum Feeder Switch photo-1
Key Specifications
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Business Type:
Manufacturer
Year Established:
2002
Factory Size:
Above 100,000 square meters
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Hunan Chuangan Explosion-proof Electric Appliances Co., Ltd.
Verified Business License
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Payment Methods:
Port of Shipment:
China
Delivery Detail:
Delivery time depends on order quantity.

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Scope of Application

Suitable for the methane- and coal dust-explosive environment underground coal mines, 50Hz AC, 1140V/660V three-phase power grid. The total current is 1260A, and the single-circuit current is 630A. It can be used as the main distribution switch or branch switch, with the functions of automatic power-off for overload, short circuit and leakage.

 

Functional Features

· Permanent magnet vacuum circuit breaker, with simple structure and long service life

· Multiple protections: overload, short circuit, leakage, wind-electric interlock, gas interlock, etc.

· Dual-circuit design, with mutual thermal backup, supporting automatic/manual/independent modes

· Equipped with RS485/Ethernet communication, supporting remote monitoring

· Square flameproof enclosure, with quick-opening door design, and reliable mechanical interlock

 

Technical Parameters

Rated voltage: 660V / 1140V

Rated current: 1260A (2×630A for branches)

Rated working system: Long-term working system

Operation mode: Electric closing/opening, manual opening

Protection functions: Overload protection, short-circuit protection, leakage protection, leakage interlock, gas interlock, wind-electric interlock

Intrinsic safety parameters:

Intrinsic safety components: Um: AC40V; Uo: 15.7VAC (effective value) 16.9VDC, I0: 16mAAC (effective value)/6mADC (pilot);

RS485 communication port: U0: 6.1V, Io: 0.5A, Co: 20μF, Lo: 0.1mH;

Ethernet electrical port: Uo: 5.8V, Io: 1.05A, Co: 10μF, Lo: 0.2mH.

Explosion-proof mark: Ex db [ib Mb] I Mb

Protection level: IP54 (flameproof enclosure)

Overall dimensions: 1320×700×1100mm

Total weight: 680kg


Product Tags: KJZ-1260/1140660-2 , Low-voltage explosion-proof switch , Coal mine feeder switch , 630 feeder switch , Combined vacuum feeder switch

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Hunan Chuangan Explosion-proof Electric Appliances Co., Ltd.
Verified Business License
Business Type
Manufacturer
Year Established
2002
Factory Size
Above 100,000 square meters
Annual Export Value
US$1 Million - US$1.5 Million
Contact Supplier Request Quote Chat Now

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