24 kV series · Indoor switchgear
Spring-operated breaker for 24 kV, 50 Hz indoor switchgear. Specify the current and breaking-duty combination, mounting arrangement, cabinet interfaces and operating supply.
The 3150 A rating uses the 31.5 kA combination. Match each current, breaking duty and mounting arrangement to the approved assembly.
Match the rated current and breaking duty first, then check the mounting arrangement, operating characteristics and site conditions.
The 63 / 80 kA peak values correspond to the 25 / 31.5 kA breaking duties. The 3,150 A option uses the 31.5 kA combination. Confirm duties outside these combinations for the exact ordered assembly.
The 3,150 A / 31.5 kA contact gap and spring travel differ from the standard-duty values. Match the phase spacing and mounting dimensions to the approved cabinet drawing.
Specify any site condition outside this envelope before ordering, so the equipment and installation requirements can be agreed.
Choose the mounting arrangement and complete current / breaking-duty pair, then specify the cabinet dimensions, interlocks and control circuit.
| Arrangement | Mechanical and primary fit | Control and interlocks |
|---|---|---|
| Withdrawable handcart | Common combinations: VS1-24/630-25, /630-31.5, /1250-25 and /1250-31.5. Match cabinet width, carriage guides and primary contacts to the ordered duty. | Confirm the racking and grounding interfaces, operating supplies and auxiliary-contact reserves. |
| Fixed assembly | Confirm the exact 24 kV assembly, rating pair, fixing points and primary connections on an assembly-specific outline. | Specify operating access, secondary wiring and the required cabinet interlocks. |
| Side-mounted | 630 / 1250 / 1600 A arrangements use 230 / 275 mm phase spacing, 310 mm pole spacing and a 380 mm front width. Match the exact current / breaking-duty pair. | Specify cable-exit direction, top and main-shaft interlocks, supplies and auxiliary-contact reserves. |
State the full model, quantity and arrangement with the cabinet outline and terminal schedule. Confirm duties beyond 25 / 31.5 kA, non-standard supplies or other operating frequencies for the exact assembly and applicable technical documents.
VS1-24 · CABINET INTERFACE
Use these contact diameters to plan the cabinet interface. Confirm rated current, breaking current and mounting arrangement together on the approved order drawing before panel layout.
| Rated current | Breaking current | Contact diameter D |
|---|---|---|
| 630 A | 25 / 31.5 kA | 35 mm |
| 1,250 A | 25 / 31.5 kA | 49 mm |
| 1,600 A | 25 / 31.5 kA | 55 mm |
| Rated current | Breaking current | Contact diameter D |
|---|---|---|
| 1,600 A | 25 / 31.5 kA | 79 mm |
| 2,000 A | 25 / 31.5 kA | 79 mm |
| 2,500 A | 25 / 31.5 kA | 109 mm |
| 3,150 A | 31.5 kA | 109 mm |
Verify final contact engagement against the approved order drawing.
Review the manual for ratings, service conditions and structure references. The sample report below addresses insulation tests for its named configuration.
Available · PDF
Product ratings, service conditions, mechanism and installation references for the VS1-24 series.
Open manual PDFOn request · sample report
Report DG22050197, dated 30 June 2022, records power-frequency, lightning-impulse and auxiliary-circuit insulation tests for the VS1-24/1250-31.5 sample. It does not include short-circuit interruption, endurance or temperature-rise test results.
Request the sample reportSee Liqiang manufacturing and inspection activities. Model reports and factory inspection records serve different purposes; match the required documents to the proposed equipment.
Configuration · ZN63-24/630-31.5
Price reference for the specified ZN63-24/630-31.5 configuration. VS1/ZN63 side-mounted arrangement; phase spacing and operating supply must be confirmed.
Price range
USD 1215–1220 / set
USD per complete three-phase set. Minimum order: 1 set. USD 1220 per set for 1–9 sets; USD 1215 per set for 10+ sets. Shipping and taxes are excluded. Other configurations and accessories require a separate quotation. Confirm the specification and final quotation before ordering.
The range reflects order-quantity tiers for this configuration; it does not cover every option in the series.
| Quantity (sets) | Price per set |
|---|---|
| 1–9 | USD 1220 |
| 10+ | USD 1215 |
VS1-24 · Product selection
Check ratings, installation fit and order details before finalizing your panel design.
The ratings table lists 25 kA at 630, 1,250, 1,600, 2,000 and 2,500 A; 31.5 kA is listed at those currents and at 3,150 A. Check the chosen mounting form for the exact orderable combination in the ratings table.
Use the prospective short-circuit current at the installation point to select the breaking-current rating. Select the continuous-current rating for the load separately, and check the corresponding withstand and making duties. The VS1-24 ratings table lists the available current and breaking-duty combinations.
Specify withdrawable or side-mounted construction to suit the cabinet. For a fixed 24 kV assembly, confirm the complete model code, mounting dimensions and control interfaces on the approved order drawing. Review the configuration details.
Include altitude, ambient-temperature range, humidity, condensation and dust or corrosive exposure in the enquiry. These conditions affect the insulation and operating environment inside the switchgear. Compare them with the service conditions and identify any special requirements before choosing the breaker and cabinet arrangement.
The withdrawable selection lists 220 V AC/DC as standard; AC/DC 110 V and 220 V are also listed for ordering. Specify closing, tripping and spring-charging supplies separately in the configuration details.
Provide the model and rated-current / breaking-current pair, mounting form, cabinet outline, phase and pole spacing, primary contact dimensions, control supply and auxiliary-contact requirements. For replacement work, include the existing nameplate and interface photos. Compare the cabinet interface dimensions with the approved order drawing.
