Question 1

Are your vacuum circuit breakers and switchgear components compliant with international standards?

Accepted Answer

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

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Question 2

Can you provide custom or modified products to fit our specific switchgear models?

Accepted Answer

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

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Question 3

What is your typical delivery lead time for orders?

Accepted Answer

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

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Question 4

What are the key advantages of your vacuum circuit breakers?

Accepted Answer

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

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Question 5

What is your warranty policy?

Accepted Answer

Our products are designed and manufactured in strict compliance with major international standards, including IEC 62271-100, IEC 62271-200 and IEEE C37.04 standards. All products are inspected by our Quality Control department.

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Question 6

What is the voltage and current rating range of your products?

Accepted Answer

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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Question 7

How do you ensure the quality and reliability of your products?

Accepted Answer

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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Question 8

Do you offer technical support and after-sales service?

Accepted Answer

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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Question 9

How do your products perform in harsh environments?

Accepted Answer

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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Question 10

How can I request a quotation and what information do you need?

Accepted Answer

We specialize in the medium-voltage range. Our vacuum circuit breakers and switchgear components are suitable for rated voltages from 7.2kV to 40.5kV. The normal current rating covers up to 4000A, and the short-circuit breaking capacity can be designed up to 40kA or higher to meet the demands of various applications, from simple distribution to heavy industrial use.

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Parameter	Details
Model	DD-3B
Product Type	Electric Chassis Control Module / Motorized Drawout Chassis Operator Module
Rated Operating Voltage	AC 220V / 110V (optional, 50/60Hz)
Control Power Consumption	≤ 10W
Motor Control Output	AC 220V / 5A (resistive load)
Input Signal Type	Dry contact / passive switch signal (chassis position detection)
Status Indicators	Power, Ready, Run, Work Position, Test Position, Fault (LED indicators)
Control Buttons	Insert, Withdraw, Emergency Stop / Reset
Terminal Block	Plug-in terminal block, 20-pin (screw-type for secure connection)
Operating Temperature	-25°C ~ +70°C
Storage Temperature	-40°C ~ +85°C
Relative Humidity	≤ 95% RH (non-condensing)
Insulation Resistance	≥ 100MΩ (at 500V DC)
Dielectric Strength	2kV AC (1min, no breakdown or flashover)
Mounting Method	Panel mounting / DIN rail mounting (optional)
Dimensions (L×W×H)	Approx. 120mm × 80mm × 160mm (customizable per actual product)
Protection Grade	IP20 (front panel)
Standards Compliance	IEC 60947-5-1, IEC 61010-1

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