Home Products MV Circuit Breaker

Miniature Outdoor Vacuum Circuit Breakers 50Hz / 60Hz 12kv Vacuum Circuit Breaker

All Products

MV Switchgear (10)

Switchgear Accessories (14)

MV Circuit Breaker (18)

LV Circuit Breaker (10)

Circuit Breaker Accessories (20)

Load Break Switch (3)

MV Disconnect Switch (3)

Earthing Switch (8)

GIS Components (2)

RMU Components (17)

Vacuum Contactor (6)

CT PT Transformer (20)

High Voltage Insulator (22)

china Ningbo Macwey Industrial Technology Co.,Ltd certification

I'm Online Chat Now

Chat Now

Miniature Outdoor Vacuum Circuit Breakers 50Hz / 60Hz 12kv Vacuum Circuit Breaker

Large Image : Miniature Outdoor Vacuum Circuit Breakers 50Hz / 60Hz 12kv Vacuum Circuit Breaker

Product Details:

Place of Origin:	China
Brand Name:	MacweyTEK
Certification:	IEC
Model Number:	ZW20-12

Payment & Shipping Terms:

Minimum Order Quantity:	1 pc
Price:	$1000-$2000
Packaging Details:	wooden case
Delivery Time:	10 days
Payment Terms:	T/T
Supply Ability:	1000 pcs

Contact Now Chat Now

Detailed Product Description

Name:	Name	Contact Opening:	9±0.5mm
Contact Overtravel:	3±0.5mm	Rated Frequency:	50HZ/60HZ
Rated Voltage:	12kv
Highlight:	Miniature Outdoor Vacuum Circuit Breakers , Outdoor Vacuum Circuit Breakers 50Hz , 60Hz 12kv Vacuum Circuit Breaker

ZW20-12 Outdoor Vacuum Circuit Breaker with Permanent Magnet for 12kV Rated Voltage and AC 50/60Hz

The ZW20-12F (M) outdoor high-voltage intelligent (permanent magnet) vacuum circuit breaker is a three-phase AC 50/60Hz switchgear with rated voltage of 12kV. Designed for breaking and closing load current, overload current, and short circuit current in power systems, it provides reliable protection and control for substations, industrial facilities, and urban/rural distribution networks.

This maintenance-free product features a sealed box structure that protects against environmental factors. When paired with a controller, it meets distribution automation system requirements and performs traditional recloser functions effectively. Available with either spring operating mechanism or permanent magnet operating mechanism for high reliability.

Structural Features

Miniaturized design for compact installation
Fully sealed inverted button structure with high anti-pollution level
Novel, simple and reliable transmission mechanism
Main components sealed in box for true maintenance-free operation
Compatible with external voltage transformer and isolating switch installation

Operating Environmental Conditions

Temperature range: -25℃ to +40℃ (daily average ≤35℃)
Relative humidity: ≤95% daily average, ≤90% monthly average
Maximum altitude: 2000m
Clean environment free from excessive dust, corrosive gases, or salt spray
Minimal vibration or ground motion
Secondary system electromagnetic interference ≤1.6kV

Technical Specifications

Parameter	Unit	Value
Power frequency withstand voltage (1min): interphase, ground / fracture	kV	42/48
Lightning impulse withstand voltage (peak) interphase, ground/fracture	kV	75/85
Secondary circuit 1min power frequency withstand voltage	kV	2
Net weight	kg	140 (with isolation ≤170)
Contact opening	mm	9±0.5
Contact overtravel	mm	3±0.5
Opening speed	m/s	1.2±0.2
Closing speed	m/s	0.6±0.2
Bounce time of contact closing	ms	≤2
Conductive loop resistance of each phase	μΩ	≤150 (with isolation ≤200)
Closing time	ms	≤45
Opening time	ms	≤45
Rated power of energy storage motor	W	>40
Energy storage motor rated voltage	V	AC220