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ZN85 40.5kV Indoor Vacuum Circuit Breaker Modular Type

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZN85
Minimum Order Quantity: 1 SET
Packaging Details: WOODEN CASE
Delivery Time: 7-15 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Name: ZN85 40.5A Indoor Vacuum Circuit Breaker Rated Voltage: 33kv,36kV, 40.5kV
Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A, Frequency: 50/60Hz
Type: Modular Type Material: Galvanized Sheet
Standard: GB, IEC Function: Control And Protection
High Light:

40.5A Indoor Vacuum Circuit Breaker


Modular Type Vacuum Circuit Breaker


Galvanized Sheet 36kV Circuit Breaker

Product Description

ZN85 40.5A Indoor Vacuum Circuit Breaker Modular Type


1. ZN85 40.5a indoor vacuum circuit breaker introduction


ZN85 40.5A Indoor Vacuum Circuit Breaker is suitable for three-phase AC 50Hz power systems, applicable to
industrial and mining enterprises, power plants and substations for breaking and closing load current, overload current and
short-circuit current. The composite insulation structure is adopted to meet the insulation requirements under normal operating
conditions, effectively reducing the volume of the circuit breaker


2. Environmental conditions:


1. Altitude: the altitude does not exceed 2000m;

2. Ambient temperature: no higher than +40℃, not lower than -25℃;

3. Relative humidity: the daily average does not exceed 95%, and the monthly average does not exceed 90%;

4. Earthquake intensity: no more than 8 degrees;


3. Structural features:


1. The ZN85 40.5A Indoor Vacuum Circuit Breaker adopts the arc extinguishing chamber on the upper part, and the structure of the whole structure under the mechanism is favorable for debugging;

2. It adopts composite insulation structure of air and organic materials, which is compact in design and light in weight;

3. It can be equipped with the vacuum interrupter of Cutler-Hammer Company of the United States and the domestic ZMD vacuum interrupter. The two arc extinguishing chambers adopt the longitudinal magnetic field arc extinguishing, low interception and good asymmetric breaking performance.


4. main technical parameters



Name Unit Value
Rated voltage KV 40.5
1min power frequency withstand voltage (effective value) KV



Lightning impulse withstand voltage (effective value) KV



Rated frequency Hz 50
Rated current A 1250,1600,2000
Rated short-time withstand current KA 25,31.5
Rated peak withstand current KA 63,80
Rated short circuit duration S 4
Rated short-circuit breaking current KA



Rated short circuit closing current KA 63,80
Rated operation sequence   0-0.3s-Co-180s-Co
Break time ms <80
Rated short-circuit breaking current breaking times time



Single capacitor bank breaking current A 630
Back-to-back capacitor bank breaking current A 400
Rated operating voltage V ~110/-110,~220/-220
Mechanical life time




5. Photo and drawing




Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197