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Help CenterKBZ-400/1140 Mining Explosion-proof Vaccum Feeder Switch
Related Products
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Explosion-proof Vacuum Feeder Switch Products Protection for Mining KBZ-400(200)/1140(660)US$ 1 - 2,000MOQ: 1 Set -
KBZ-400(200)/1140(660) Mining Explosion Proof Electronic Vacuum SwitchUS$ 1 - 2,000MOQ: 1 Set
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KBZ-400(200)/1140(660) Explosion Isolation Type Vacuum Feeding SwitchUS$ 1 - 2,000MOQ: 1 Set
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KBZ-400(200)/1140(660) Explosion Proof Vaccum Feeder Switch for SaleUS$ 1 - 2,000MOQ: 1 Set
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KBZ-400(200)/1140(660) Mining Explosion-proof Vaccum Feeder SwitchUS$ 1 - 2,000MOQ: 1 Set
KBZ-400(200)/1140(660) mine explosion-proof is mainly used as low-voltage feeder switch for mobile substation (After the cover board is opened , it is oppositely connected with dry transformer) or main switch or branch switch in AC 50Hz power distribution system of indirect neutral-point earthing with voltage of 1140V or 660V and current of 630 A or 500A I underground coal mines with explosive and dangerous gas (methane) and coal dust and it is also used for non-frequent start of big capacity motor.
1. Cute square shell, convenient and flexible for movement.
2. Multiple protective functions for overload, short circuit, loss of phase, electric leakage, leakage lockout,selective leakage (branch switch), over voltage, under voltage etc.
3. The operating mechanism adopts manual switching on or off ,and it adopts electromagetic tripping in fault state.
4. Function of fan and power supply lockout, gas lockout, high-voltage electric interlock.
| Model | KBZ -400/1140 | KBZ -400/660 | KBZ -200/1140 | KBZ -200/660 |
| Rated Voltage | 1140 | 660 | 1140 | 660 |
| Rated Current | 400 | 400 | 200 | 200 |
| Limited on&off capacity | 7.5 | 9 | 4.5 | 7.5 |
| Leakage lockout value | 40+20% | 22+20% | 40+20% | 22+20% |
| Leakage action value | 20 | 11 | 20 | 11 |
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