Sigma Capacitors were designed to minimize the need to stock hundreds of capacitors. Sigma Capacitors are a permanent replacement for standard capacitors so there is no reason to return to a job site once installed. The starter kit (SCKIT) includes 7 different sizes, that when paired with alternate sizes, will replace hundreds of both single and dual 370/440V capacitors.
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.