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MKH7-125N AC Isolating Switch
General
MKH7-125 series isolating switch is suitable in the resistive circuit of AC 50/60HZ,rated voltage 230/400V,rated current up to 125A.
It’s used primarily for circuit’s turning on or off in non-loadedsituation.And it functions on connection and isolation between lines and power,especially suitable to isolate power effectively and prevent circuit breaker from closing acidentally when maintain the circuit in order to ensure the safe operation of maintainer.
Standard:IEC600947-3
Product Details
General
MKH7-125 series isolating switch is suitable in the resistive circuit of AC 50/60HZ,rated voltage 230/400V,rated current up to 125A.
It’s used primarily for circuit’s turning on or off in non-loadedsituation.And it functions on connection and isolation between lines and power,especially suitable to isolate power effectively and prevent circuit breaker from closing acidentally when maintain the circuit in order to ensure the safe operation of maintainer.
Standard:IEC600947-3
Feature
Contact position indication
Anti-skid handle for easy and reliable operation
Flame retardant,high temperature resistance and impact resistance
Technical data
| Model | MKH7-125 | ||
|
Electrical features |
Poles | P | 1,2,3,4 |
| Rated voltage Ue | V | 230/400 | |
| Rated current le | A | 20,32,40,63,80,100,125 | |
| Rated frequency | Hz | 50/60 | |
|
Rated impulse withstand voltage(1.2/50)Uimp |
V | 4000 | |
| Rated short-time withstand current Icw | 12le,1s | ||
| Rated making and breaking capacity | 3le,1.05Ue,cosφ=0.65 | ||
| Rated short circuit making capacity | 20le,t=0.1s | ||
|
Dielectric test voltage at ind.Freq.for 1min |
Kv | 2.5 | |
| Insulation yoltage Ui | V | 500 | |
| Pollution degree | 2 | ||
| Use Category | t | AC-22A | |
| Mechanical features | Electrical life | t | 1500 |
| Mechanical life | 8500 | ||
| Protection degree | IP20 | ||
| Installation | “Terminal size top/bottom | mm² | 50 |
| for cable and pin-type busbar” | AWG | 18-1/0 | |
|
Operating Conditions |
Ambient temperature(with daily average≤35℃) |
-25~+60 | |
| Altitude | Not higher than 2000m | ||
| Installation Method | Embedded vertical standard rail mounting | ||
| Wiring Method |
Clamp connection wire with screw,tightening torque 2.5N.m |
||
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