Cat Switchgear - Altorfer    

Cat Switchgear

Cat Switchgear

Caterpillar has developed a modular low voltage switchgear enclosure range which integrates controls and PLC solutions. Built around 150mm modules in 3 axis, internally the framework utilises a 25 mm grid allowing a fully configurable system. Enclosure options include form 4 separation, IP54 protection and 50 °C capabilities. The Cat switchgear has been independently tested and conforms to the low voltage IEC61439-2:2011 international standard. It supports a high short circuit fault rating of 100kA / 1sec Icw and Icc, suitable for demanding primary distribution applications. Assemblies have been temperature rise tested, which also included forced air solutions. Medium voltage switchgear and alternator solutions are also available. Typically, medium voltage supplies at 11/12kV – 200/630A applications can be packaged complete with installed medium voltage cabling. The complete integrated package can be factory witness tested, thus benefiting the customer with a turnkey optimised solution when delivered to site.

Enclosure Rating


Operating Temperature

Operating Temperature
35 °C / 40 °C @ 1 hr, option for 0…50 °C (32…122 °F)


Standard Widths
600 mm for ABB Emax2 E2 1600 - 2500A. 750 mm for ABB Emax2 E4 3200 - 4000A. 1200 mm for ABB Emax2 E6 4000 - 6300A.
Standard Depths
300, 450 & 750mm for controls and PLC cabinets. 900mm for fixed breakers. 1050mm for withdrawable breakers
Standard Heights
Heights include 100mm plinth with fork lift pockets, 1900 mm up to 3200A, 2200 mm for 400,2200 mm for PLC and control cabinets. Option for single point lifting on 4 corners with M10 swivel eyes. Standard sizes for shipping


LV 380…480 VAC, 50 Hz, 3-Phase.

Modes of Operation

Modes of Operation
Switchgear integration options for multi generator and utility synchronising, load sharing, Peak Lopping/Shaving, AMF, Changeover, Load bank connection, Protection relay etc.

Technical Summary

Technical Summary
Modular system enables any configuration Distribution Boards, Motor Control Centers & PLC Control cabinets. Accommodates fixed or withdrawable breakers.

Standard Equipment

  • ABB Emax2 ACB's

Optional Equipment

  • Motor control and monitoring
  • Protection relays
  • Surge protection
  • Generator controllers
  • Cooling Fans