TRANSFORMERS & ELECTRICAL COMPONENTS
APPLICATION / 01
Building final circuits
For residential, commercial and service-area lighting or small-power circuits.
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Product illustration. Actual configuration varies by specification.
Open product image ↗Low-voltage Distribution
PZ30 · Distribution board
Modular terminal distribution box for building and small industrial circuits.
- Catalogue designation
- Terminal distribution
- Selection
- Circuit schedule and enclosure arrangement
Price on enquiry · Configuration, quantity & destination
Supply scope, manufacturer information, applicable documents and warranty arrangements are confirmed in the quotation and order.
APPLICATION & DUTY
Where PZ30 fits
PZ30 is a modular terminal-distribution box for building and local service circuits. DIN-rail mounted devices provide the selected protection and switching functions, while the enclosure organises circuit access and wiring. The required circuit count and device widths determine the box size.
APPLICATION / 02
Local auxiliary distribution
For terminal circuits in industrial and infrastructure buildings where modular devices are appropriate.
PRODUCT ENGINEERING
Construction & operating functions
DETAIL / 01
Modular device mounting
The internal rail arrangement accommodates modular protective and switching devices. Rail space must be checked against the actual device widths and required spare ways.
DETAIL / 02
Covered live parts
Operating handles are accessible through the front arrangement while internal wiring and live parts remain behind the cover. The chosen cover and door arrangement must match the enclosure variant.
DETAIL / 03
Surface and recessed options
The series includes different mounting arrangements. Recessed installations require coordination of the wall opening and finished surface depth.
DETAIL / 04
Device-dependent protection
Overload, short-circuit, residual-current or overvoltage protection comes from the installed devices. The enclosure model alone does not define those functions.
DEFINE THE SELECTED ASSEMBLY
Configuration & installation interfaces
Match the installation drawing, cable routes, clearances and electrical duty for the selected equipment.
Illustrative working scene- Circuit schedule
- List outgoing circuits, protective-device poles and any auxiliary modules.
- Box size
- Select enclosure space from actual device widths, wiring space and spare capacity.
- Mounting
- State surface or recessed installation and cable-entry directions.
Installation & connection checklist
- Check the mounting variant before using the dimension table.
- Provide neutral and protective-earth connection requirements.
- Identify door-opening constraints and available wall space.
- Confirm the installed component list with the final circuit diagram.
RATING DATA
PZ30-B surface-mounted enclosure dimensions
13Parameter / configuration entries
Units shownCompare values with their units
Selected variantConfirm the matching configuration
Review the listed configuration and applicable units. On a small screen, scroll the table sideways.
| Specification code | Height (mm) | Width (mm) | Depth (mm) |
|---|---|---|---|
| 6# | 230 | 200 | 90 |
| 8# | 230 | 240 | 90 |
| 10# | 280 | 280 | 90 |
| 12# | 280 | 310 | 90 |
| 15# | 280 | 370 | 90 |
| 18# | 280 | 420 | 90 |
| 20# | 280 | 460 | 90 |
| 24# | 470 | 310 | 90 |
| 30# | 470 | 370 | 90 |
| 36# | 470 | 420 | 90 |
| 40# | 470 | 460 | 90 |
| 45# | 630 | 370 | 90 |
| 54# | 630 | 420 | 90 |
Checked against original distribution catalogue PDF page 38. PZ30-B surface-mounted large enclosure dimensions only. Recessed installation dimensions require a separate drawing. Ratings describe catalogue options, not every possible combination; select the complete configuration in the technical schedule.
Drawings & configuration documents
Send your selected rating and installation requirements to request the matching dimensional drawing, connection details and technical schedule.
DOCUMENTS · DELIVERY · SUPPORT
Technical coordination & after-sales enquiries
Confirm the order documents
Agree the selected specifications, applicable drawings, inspection records and identification requirements in the quotation and order.
Coordinate delivery
Include quantity, destination, packing requirements and preferred trade terms. Confirm transport scope and the requested delivery schedule with the quotation.
Request technical support
For an existing unit, provide its model, nameplate or order reference and a description of the issue. Include relevant photos or records already available. Warranty and service scope follow the agreed order terms.
Contact about this model ↗START WITH WHAT YOU HAVE
Prepare a quotation for this equipment.
Choose your enquiry type. Start with the information you have.
Price on enquiry
Quotations are prepared for the selected configuration, quantity and destination. Currency, validity, delivery terms, freight and any applicable duties or taxes are specified in the quotation.
Project procurement
New installations & project tenders
Discuss a project ↗What to prepare
Send the load list, single-line diagram, fault duty and switchroom layout.
Distributor procurement
Model lists & repeat orders
Discuss supply requirements ↗What to prepare
Identify recurring cabinet arrangements, circuit quantities and preferred installed devices.
Panel & equipment builders
Equipment integration & matching
Discuss an assembly ↗What to prepare
Supply the feeder schedule, wiring diagrams, mounting details and cable-entry requirements.
Repair & replacement
Identify an existing unit or part
Identify a replacement ↗What to prepare
Provide cabinet, drawer or device identification, dimensions and connection details for the part to be replaced.
Illustrative enquiry scenarios.
Selection checklist for PZ30
- Single-line diagram, load list and outgoing circuit schedule
- System voltage, bus current and short-circuit duty
- Fixed or withdrawable units, protection and control functions
- Enclosure dimensions, mounting, cable entry and site conditions
- Check the mounting variant before using the dimension table.
- Provide neutral and protective-earth connection requirements.
- Identify door-opening constraints and available wall space.
- Confirm the installed component list with the final circuit diagram.
From enquiry to an agreed supply
- Share the requirementModel, duty, quantity and destination.
- Review the configurationResolve ratings, interfaces and site conditions.
- Agree the technical scheduleScope, drawings, tests, price and delivery terms.
- Confirm delivery documentsAgree packing, identification and the applicable inspection records.
Testing, warranty terms and after-sales scope are to be agreed in the quotation and order documents for the selected configuration.
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Mingkong High & Low Voltage Switchgear Selection Guide · Updated 24 October 2026 · Chinese / English
For a quotation, include your required model, rating, quantity and operating conditions.