Blokset Switchgear is a modular low-voltage family for distribution and motor-control applications. Define the incoming and outgoing duties, assembly arrangement and model-specific documents for the offered configuration.
Blokset Switchgear Specifications
Series Selection Data
| Parameter | Specification / configuration |
|---|---|
| Rated operating voltage | 400 / 690 V AC |
| Rated insulation voltage | 1000 V AC |
| Rated frequency | 50 / 60 Hz |
| Main busbar current | Configuration-dependent; documented series options up to 6300 A |
| Distribution busbar current | Options up to 3200 A |
| Rated impulse withstand voltage | 12 kV |
| Short-time withstand current options | 30 / 50 / 85 / 100 kA; duration and arrangement confirmed for the selected design |
| Peak withstand current options | 63 / 105 / 187 / 220 kA; matched to the selected design |
| Enclosure protection options | IP30 / IP31 / IP40 / IP41 |
| Internal separation options | Form 2b / Form 3b |
Standard Service Conditions
| Parameter | Specification / configuration |
|---|---|
| Ambient temperature | −5 to +40 °C; 24-hour mean up to +35 °C |
| Relative humidity | Up to 50% at +40 °C or 90% at +20 °C |
| Standard altitude | Up to 1000 m; higher sites require a configuration review |
| Installation | Indoor; no severe vibration or corrosive atmosphere |
| Maximum inclination | 5° from vertical |
Ratings and options apply to the selected configuration. The agreed drawings and equipment schedule define the supplied assembly.
Distribution and motor-control functions
Distribution sections, motor-control sections and compensation sections perform different tasks and should be specified independently. Withdrawable units can support access to an individual functional unit, while fixed arrangements may suit circuits with different maintenance priorities. The configuration review identifies feeder sizes, isolation requirements and the chosen form of internal separation.
Define the assembled system
The published options describe a product family rather than a single cabinet carrying every maximum rating simultaneously. A quotation should identify the busbar arrangement, circuit-breaker and starter selection, cable space, enclosure protection and the supporting documents applicable to the assembled equipment.
Information for Selection
- Single-line diagram and load schedule
- Main busbar and feeder currents, fault level and duration
- Fixed/withdrawable units and form of separation
- Cable entry, access, enclosure protection and document requirements
Explore the application solutions for your industry and include the project specification with your enquiry.