ZW32-40.5 Series 40.5kV Outdoor Vacuum Circuit Breaker

Our ZW32-40.5 outdoor vacuum circuit breakers feature integrated solid-sealed pole units with compact design, offering reliable switching for 40.5kV medium-voltage overhead line networks.

• Rated at 40.5kV with current options of 1250A and 1600A; short-circuit breaking up to 31.5kA with making current up to 80kA.

• Mechanical life of 10,000 operations with 30 rated short-circuit breaking operations.

• Operating duty of O-0.1s-CO-3s-CO-6s-CO with 60s recovery; available with permanent magnetic mechanism and optional disconnector.

• Wide operating temperature from -30°C to +60°C, altitude up to 3000m, and pollution Class IV capability.

• Fast delivery, reliable quality, responsive service, and extensive project experience backed by our company.

Send Inquiry

Product Overview

The ZW32-40.5 outdoor AC high-voltage sectionalizing vacuum circuit breaker is primarily composed of an integrated solid-sealed pole unit, current transformer, operating mechanism, and enclosure. It can be equipped with a disconnector. This model features a compact design with a high-quality steel enclosure. Current transformers can be selected according to user requirements.

This device is mainly used in medium-voltage overhead line networks for breaking and making load currents, overload currents, and short-circuit currents.

Technical Specifications

Item	Unit	Parameter
Rated Voltage	kV	40.5
Rated Current	A	1250/1600
Rated Frequency	Hz	50/60
Power Frequency Withstand Voltage for 1 min (Wet) (Dry) Phase-to-Phase, Phase-to-Earth / Across the Isolating Distance	kV	8095/95
Lightning Impulse Withstand Voltage (Peak) Phase-to-Phase, Phase-to-Earth / Across the Isolating Distance	kV	185
Rated Short-Circuit Breaking Current	kA	25/31.5
Rated Short-Circuit Making Current (Peak)	kA	63/80
Rated Peak Withstand Current	kA	63/80
Short-Time Withstand Current for 4 s	kA	25/31.5
Rated Operating Duty Cycle		O-0.1s-CO-3s-CO-6s-CO-60s recovery
Rated Number of Short-Circuit Breaking Operations	times	30
Mechanical Life	times	10000
Operating Mechanism Control Voltage	V	AC/DC220
Power Frequency Withstand Voltage for 1 min for Secondary Circuits	kV	2

Model and Its Meaning

Z W 32 - 40.5 F M G / □ - □

Z - Vacuum Circuit Breaker

W - Outdoor

32 - Design Serial Number

40.5 - Rated Voltage (kV)

F - Sectionalizing Switch

M - Permanent Magnetic Mechanism

G - Disconnector (Isolator)

□ - Rated Current (A)

□ - Rated Short-Circuit Breaking Current (kA)

Normal Service Conditions

1. Ambient Air Temperature: -30°C to +60°C;

2. Altitude: Not exceeding 3000 meters;

3. Wind Speed: Not exceeding 34 m/s;

4. Pollution Severity: Class IV;

5. Storage Temperature: -40°C to +85°C;

Vibrations or movements from outside the switchgear and controlgear are negligible.

Hot Tags: zw32-40.5 series 40.5kv outdoor vacuum circuit breaker, China zw32-40.5 series 40.5kv outdoor vacuum circuit breaker manufacturers, suppliers, factory, outdoor vacuum circuit breaker, ZW30A 40 5 Series Outdoor High Voltage Vacuum Circuit Breaker, ZW32Y 12 Series Outdoor AC High Voltage Prepaid Vacuum Circuit Breaker, ZW32 12 Series Outdoor AC High Voltage Vacuum Circuit Breaker, ZW39 40 5 Series Outdoor High Voltage Vacuum Circuit Breaker, ZW17 40 5 Series Outdoor High Voltage Vacuum Circuit Breaker

ZW30A-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker

ZW39-40.5 Series Outdoor High Voltage Vacuum Circuit Breaker

Send Inquiry