HONGFA UEM6H Distribution Appliance Instruction Manual

HONGFA UEM6H Distribution Appliance

Product Information

Specifications

• Product Type : UEM6 UEM6 series DC MCCB
• Standard : IEC/EN 60947-2, IEC/EN 60947-3, GB/T 14048.2, GB/T 14048.3

Product Usage Instructions

Pre-installation Checks
Before installing the product, perform the following checks:

1. Check the appearance for any possible damage that may occur during transportation, such as damage to the shell.
2. In addition to the product, ensure that the packaging box includes: instruction manual, product qualification certificate, installation screws, and other related accessories.

Installation Precautions
Take note of the following precautions during installation:

• The product is strictly prohibited from being installed in environments containing flammable and explosive gases or damp condensation.
• It is strictly prohibited to operate the product with wet hands.
• During product operation, it is strictly prohibited to touch conductive parts of the product.
• When installing and maintaining, it is necessary to ensure that the circuit is powered off.
• Do not install in areas where gas media can corrode metals and damage insulation.
• To avoid dangerous accidents, the installation and fixation of the product must strictly follow the requirements of the manual.

Product Installation
Follow the outline and dimensional diagrams provided in the user manual for proper product installation.

Outline and Installation Dimensional Diagram

• Product Type: UEM6 UEM6 series DC MCCB
• Outline Dimension: 29mm x 135mm x 34mm
• Installation Dimension: 2×5.5mm x 165mm x 16mm x 14mm
• Wiring Dimension: 10.5mm x 32.4mm M10x30
• Product with Zero Arc Terminal Cover (Integrated assembly with manual operation mechanism)
• Outline Dimension: 52mm x 29mm x 83mm x 18mm
• Installation Dimension: 135mm x 335mm x 205mm x 173mm
• Wiring Dimension: 46.8mm x 96mm, 75.8mm, 4xM10
• Interphase Barrier: 166mm

Minimum Installation Distance
The minimum installation distance for the conventional product (UEM6H-400) is as follows:

| A| B| C| D| E
---|---|---|---|---|---
Distance (mm)| 30| 65| 30| 65| 30

Accessory Installation
Follow the provided installation dimensions for the manual operating mechanism:

Z3/Z3 type Manual Operating Mechanism

• Installation Dimension: 83mm x 18mm
• Wiring Dimension: 2×5.5mm
• Z4/Z4 type Manual Operating Mechanism
• Installation Dimension: 83mm x 18mm
• Wiring Dimension: 2×5.5mm
• Tightening Torque: M52~3N.m for square shaft M5 screws

Instruction manual

Note

1. Check the appearance for any possible damage that may occur during transportation, such as damage to the shell.
2. In addition to the product, the packaging box should also include instruction manual, product qualification certificate, installation screws, and other related accessories.
3. The product is strictly prohibited from being installed in environments containing flammable and explosive gases or damp condensation, and it is strictly prohibited to operate the product with wet hands.
4. During product operation, it is strictly prohibited to touch conductive parts of the product.
5. When installing and maintaining, it is necessary to ensure that the circuit is powered off
6. Do not install in areas where gas media can corrode metals and damage insulation.
7. To avoid dangerous accidents, the installation and fixation of the product must strictly follow the requirements of the manual.

Outline and Installation Dimensional Diagram

Minimum installation distance

(Take conventional product as an example)

30

|

65

|

30

|

65

|

30

UEM6H-400 zero arc terminal cover）|

30

|

60

|

30

|

60

|

30

Requirements for connecting wires

(20 ~ 22)N.m

Note : The tightening torque of the M10X30 wiring screw is specified as (20-22) N.m

Schematic diagram of operation testing

• Press down the handle to buckle
• Push the handle up to close
• Press down the handle to open
• Push the handle up to close
• Press the button to release

Accessory installation

Installation dimension of manual operating mechanism

Note : The tightening torque for square shaft M5 screws is specified as (2-3) N.m

Internal accessory type and installation

Accessory code| Accessory name| Installed position|

---|---|---|---
00| No accessory| — —
20| Aux contact|
10| Shunt trip|
40| Aux contact Shunt trip|

Aux Contact

When the applied voltage of the shunt trip is 70%- 110% of the rated control voltage of the shunt trip, the shunt trip should ensure reliable trip of the product.

Parameter table of shunt trip

（V） Voltage| （ms） Power-on time| （W） Power| （ms） The time from the energization of the shunt trip to the complete separation of the contacts
---|---|---|---
DC 24| ＜50| ＜20| ＜20
DC 220| ＜50| ＜20| ＜20
AC 220| ＜50| ＜20| ＜40
AC 380| ＜50| ＜30| ＜40

Wiring diagram of shunt trip

Wiring method
UEM6 series products have the characteristic of non-polarity wiring, which can meet different wiring requirements of customers

Derating factor

The derating factor of altitude
When the altitude exceeds 2000m, as the altitude increases, the atmospheric composition, cooling performance, insulation performance, and air pressure all change. The product parameters can be corrected according to the following table.

1

|

0.988

|

0.973

|

0.954

|

0.933

Operating voltage correction factor|

1

|

1

|

1

|

1

|

1

 Power frequency withstands voltage correction factor|

1

|

0.941

|

0.88

|

0.84

|

0.8

Derating factor of temperature

MCCB:

Ambient air temperature|

+40

|

+45

|

+50

|

+55

|

+60

|

+65

|

+70

|

+75

|

+80

---|---|---|---|---|---|---|---|---|---
Operating current correction factor|

1

|

1

|

1

|

1

|

0.963

|

0.915

|

0.89

|

0.872

|

0.86

Switch disconnector:

Ambient air temperature|

+40

|

+45

|

+50

|

+60

|

+70

|

+85

---|---|---|---|---|---|---
Operating current correction factor|

1

|

1

|

1

|

1

|

0.9

|

0.8

Regarding the warranty period and after-sales service

This product is manufactured under a comprehensive quality management system. In the event of a malfunction, the warranty period and after-sales service are explained as follows:

Warranty period

If the product is damaged or cannot be used normally due to manufacturing quality issues within 18 months from the date of shipment by our company, provided that the user complies with the storage and use conditions, our company is responsible for free repair or replacement. However, if the malfunction is caused by the following reasons, it will be repaired or replaced for a fee even during the warranty period：

1. Due to usage errors, self-modification, and improper maintenance.
2. Use beyond standard specifications.
3. Due to reasons such as falling or damage during transportation after purchase.
4. Earthquakes, fires, lightning, abnormal voltage, other natural disasters, and secondary disasters.

After-sale service

• When a malfunction occurs, please contact the supplier or our company’s after-sales service department.
• Repair or replacement during the warranty period: Any malfunction caused by manufacturing issues within our company shall be repaired or replaced for free.
• Repair or replacement beyond the warranty period: pay for repair provided that the function can be maintained after repair; If the repair does not work properly, replace it for a fee.

The product is qualified. Can be released

Service hotline: 400 600 1502

Frequently Asked Questions

What is the minimum installation distance for the conventional product?
The minimum installation distance for the conventional product (UEM6H-400) is as follows:

What are the specifications for the connecting wires?
The rated current and wire cross-sectional requirements for connecting wires are as follows:

How should I operate the product?
To operate the product, follow these steps:

1. Press down the handle to buckle.
2. Push the handle up to close.
3. Press down the handle to open.
4. Push the handle up to close.
5. Press the button to release.

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