has been manufacturing custom magnetic components including transformers inductors and power supplies since 1967. Our products range in size from 500VA to 2 MVA in voltages from 0 through 13.6 KV. Power supply designs can be AC or DC, convection or water cooled. We can provide our customer the base transformer for their in house power supply assembly, through complete turnkey systems. Systems can be designed by MARELCO or built to the customers’ specification.

is a turn-key control systems integrator providing custom electrical sytem design and manufacturing solutions, within "off-the-shelf" timelines and budgets.

MCS is a full-service UL508A / UL698A Listed Facility and presently services markets ranging from Packaging to Alternative Energy and Environmental Remediation / Wastewater Management.