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Resources for electrical engineering consultants

Find our tools and resources for electrical consultants such as Voltage Drop Calculator, Conduit Fill Calculator, Division 26 Specifications and White Papers.

SpecWriter Online is Available Now!

The new SpecWriter tool by Siemens provides Consulting Engineers the freedom to build and customize a specification. No more days of copying and pasting a word document then editing afterwards. SpecWriter allows you to build the exact specification that you need and it's free!

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Solar Source Connections to Utility Fed Switchboards

Solar inverters have become common inputs to UL891 utility fed switchboards. This paper references NEC edition 2023 to describe rules regarding where inverter inputs can be connected, their needed overcurrent protection, and switchboard through bus rules. Included are through bus Amperage calculation examples. Its intent is to aid in configuring switchboards that are buildable and meet the NEC.

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When you need to pair MCCBs with your WL – use 3VA!

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  • Extensive selection of universal accessories
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  • Advanced ETU features such as DAS, communication and metering.
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3VA-WL

Division 26 Specifications

26 25 00 Enclosed Bus Assemblies - Division 26 Specifications

This section defines the low voltage meter for use in kWh revenue class multi-customer metering for use in the AC electrical equipment as outlined in the one-line and/or riser drawings.

26 09 13 03 50 Electrical Power Monitoring – Tenant Sub-Billing

26 25 00 Enclosed Bus Assemblies - Division 26 Specifications

This section defines low voltage indoor and outdoor busway, fittings and plug-in units for use in AC systems, rated 600 V or less.

26 25 00 Enclosed Bus Assemblies

Specification Resources for Electric Vehicle Chargers

The requirements of the Contract, Division 26 applies to Electric Vehicle Supply Equipment (EVSE) called Commercial VersiCharge™ AC/ VersiCharge Blue™ AC as Specified and as shown on the contract drawings shall be furnished and installed by the Contract.

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Here you will find important information, documents, and addresses relating to low voltage power distribution and electrical installation technology.

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