Circuit Breaker 1000V for Power Distribution Application Spare Parts with IEC IEEE Standard

US$999.00 1 Piece (MOQ)
Port:
Shanghai, China
Production Capacity:
50000PCS/Year
Payment Terms:
L/C, T/T, D/P

Last Login Date:

Jul 02, 2025

Main Products:

Auto Transformer, Distribution Transformer, Spare Parts, Gas Insulated Switchgear, Air Insulated Switchgear, Vacuum Circuit Breaker, Iron Core, Operation& Maintenance, Cable, Generator

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Product Description

Company Info

Basic Info.

Model NO.
TUNGWELL
Certification
VDE, CCC, ISO9001
Shell Material
Steel Plate
Voltage Level
Medium Voltage
Installation
Fixed
Structure
Cabinet
Current
AC
Trademark
Tungwell
Transport Package
Export Package
Origin
China

Product Description

Important Features

  • Spring operation mechanism and circuit breaker are a whole structure with layout arrangement. The compact mechanism connecting indicates reliability. The spring operation mechanism life is over 30 000 times to guarantee CB life can be up to 20 000 times.
  • The new compressed spring energy storage mechanism adopts module design. The arrangement of main components is reliable with structure simple and steady performance. The whole mechanism is made of energy storage, opening, and closing modules. The performance of closing and opening precedes the national standard and comply with GB1984, IEC56 and DL/403 etc. standard.
  • ZN48A adopts three-dimensional computer design and dynamic simulation optimization design, which make the arrangement of electromagnetic field more reliable and decrease the partial discharge and partial heat.
  • New ideal: visual over travel, the contactor wear and over travel status can be inspected by eyes.
  • Each living parts are packed individually in the sealed insulator, and the insulating performance is reliable.
  • ZN48A has the reliable earthing to ensure the earthing continuously of the circuit breaker from working position to testing position.
  • ZN48A has passed the test of temperature rising of 1.1 times rated current.

Parameters

HVA Series Indoor Vacuum Circuit Breaker

No.

Name

UnitData
1Rated voltagekV122440.5
2Rated frequencyHz505050
3Rated currentA630/1250/1600/2000/2500/3150/40001250/1600/2000/2500630/1250/1600/2000/2500
4Rated short-circuit breaking currentkA20/25/31.5/40/5020/25/31.520/25/31.5
5Rated short-circuit making current (peak)kA50/63/80/100/12550/63/8050/63/80
6Rated peak withstand currentkA50/63/80/100/12550/63/8050/63/80
7Rated short-time withstand current (r.m.s.)kA20/25/31.5/40/5020/25/31.520/25/31.5
8Rated duration of short-circuitS444
9Rated short-circuit current breaking times 503020
10Rated single capacitor bank breaking currentA630(800)630(800)630
11Rated back-to-back capacitor bank breaking currentA400(630)400(630)(400)
12Rated operating sequence O-0.3s-CO-180s-COO-0.3s-CO-180s-COO-0.3s-CO-180s-CO
13Rated 1 min power frequency withstand  voltagekV426595
14Rated lightning impulse withstand voltagekV75125185
15Mechanical life 100001000010000
16D.C. component of rated short-circuit Breaking current >35%>35%≤35%

Key Manufacturer Profile

Products Range

Low Voltage Cabinet

Medium Voltage Cabinet

Applications

About TUNGWELL

Originated from a China Representative Office of a global power renting company since 2012, we do source, procure, QA&QC, logistic coordination for its global project sites. With the strong backgrounds and knowledge of supplying and manufacturing experience in the prime Chinese power equipment manufacturing field, TUNGWELL and our cooperated manufacturers are dedicated to research, design, manufacturing, marketing and service in the power business.

TUNGWELL Power Solutions Ltd.

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