Switchboards
Form4 is a modular system manufactured and tested in our Perth and Darwin workshops. Australian Standards, and type tested to AS/NZS 3439.1. A focal point of Form4 design is requirements for short circuit and Arc Fault Containment.
Our material sources ensure absolute compliance to Australian and International standards. Reputable Australian suppliers provide the equipment used in the manufacture of ISAS switchboards. Local businesses provide steelworks, surface treatment, busbar, electrical equipment, and cabling. ISAS provide the highest standards and ongoing service using these methods.
The Form4 switchboard system is modular, cost effective and flexible in design. This allows for complete customisation of design in every switchboard. Form4’s design means easy workshop assembly and quick on site modifications. Standard components make up the modular system. The base Form4 system configures a variety of equipment.
The single piece channel base provides a solid structure for the switchboard. Hot dipped, 75mm thick galvanised steel makes up the base of each Form4 design .
Full height cable zones provide a full 300mm wide door opening. There is over 400mm of usable space inside the cable zone. This allows for generous glanding space for all tier arrangements. Switchboard arrangements can be single or double sided. Form4 supports both top and bottom cable entry.
ISAS stock all sizes of the modular components in their Darwin and Welshpool factory. We build most switchboard arrangements with low turn around.
The system is versatile in use and suitable for use in
- Demountable Motor Control Centers with either Form 3 or Form 4 Motor Starters
- PLC and Marshaling Cubicles
- Soft Starters and Variable Speed Enclosures
- Power Factor Correction Modules
The standard system is off the shelf in steel. Form4 is also available in Aluminium and Stainless Steel.
A separate overhead bus duct contains the main busbar system. Project requirements set the rating of the main busbar system. Removal of the overhead bus duct lid can provide
access to all joints and connections. Form4 is compatible with thermographic surveying. When isolated, technicians can check all busbar connections.
Neutral bars are available in half size or full size, depending project specifications. ISAS technicians install dropper busbars ranging in size from 400A to 1000A, and for both 3 and 4 pole arrangements. Busbar systems can be air insulated or in full separation as specified.
