ZW32-40.5F (M) outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker

ZW32-40.5F (M) Permanent Magnet Vacuum Circuit Breaker for outdoor distribution switching. Confirm system voltage, current and fault duty and request model-specific information from GRL.

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Overview

The ZW32-40.5F(M) outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker mainly consists of integrated solid-sealed poles, a current transformer, an operating mechanism, and a housing. A disconnecting switch can be added. This model of circuit breaker features a miniaturized design with a high-quality steel housing. The current transformer can be selected according to user needs.

This device is mainly used in medium-voltage overhead power grids for switching on and off load currents, overload currents, and short-circuit currents.

Model Meaning

ZW32-40.5F (M) outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker

Usage conditions

◆Ambient air temperature: -30℃~+60℃;

◆Altitude: Not exceeding 3000 meters;

◆Wind speed not exceeding 34m/s;

◆Vibrations or ground movements from outside the switching and control equipment are negligible;

◆Soiliness level: IV;

◆Storage temperature: -40℃ ~ +85℃.

Main technical parameters

Main technical parameters of circuit breaker

Project	Unit	Parameter
Rated voltage	kV	40.5
Rated current	A	1250/1600
Rated frequency	HZ	50 or 60
Power frequency withstand voltage 1min (wet) (dry) phase-to-phase, to ground/break	kV	81
Lightning impulse withstand current (peak value) phase-to-phase, to ground/break	kV	185
Rated short-circuit breaking current	kA	25/31.5
Rated short-circuit making current (peak value)	kA	63/80
Rated peak withstand current	kA	63/80
4S Short-Time Withstand Current	kA	25/31.5
Rated operating cycle		Split – 0.1s – Combine – 3s – Platform – 6s – Combine – 60s – Restore
Rated short-circuit current breaking times	次	30
Mechanical life	次	10000
Mechanism control voltage	V	AC/DC220
Secondary circuit 1min power frequency withstand voltage	kV	2

Main technical parameters

Main technical parameters of circuit breakers

Project	Unit	Parameter
Contact gap	mm	16±1
Contact overtravel	mm	4±0.5
Opening speed	m/s	1.4-1.8
Closing speed	m/s	0.4-0.8
Contact closing bounce time	ms	≤5
Inter-phase center distance	mm	460±2
Asynchronous opening and closing of three-phase circuit breakers	ms	≤2
Resistance of each phase conductive circuit	μΩ	<80
Closing time	ms	≤ 100
Opening time	ms	≤ 50
Weight	Kg	270

External dimensions and installation dimensions (mm)

ZW32-40.5F (M) outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker

Selecting ZW32-40.5F (M) Permanent Magnet Vacuum Circuit Breaker

Before requesting a quotation, confirm system voltage, current and fault duty, operating mechanism and control interface and mounting dimensions and service environment. Send the exact model, quantity and installation details so the configuration and document set can be checked against your project.

Compare the vacuum circuit breakers range, including AB-3S-40.5 Outdoor Pole-mounted Permanent Magnetic Vacuum Circuit Breaker; ZW20-12F (M) outdoor high voltage intelligent (permanent magnet) vacuum circuit breaker. For drawings and order-specific questions, send your product requirements to GRL.