Square-D 31091-400-57 – Magnetic | Holding Coil
Lanco’s SD4480V holding coil is equivalent to these Square-D 31091-400-57. This coil is used in 480 volt coil applications and fits size 4 devices. All Lanco parts meet or exceed the OEM specifications and come with our unconditional satisfaction guarantee.
About Lanco Contacts:
Lanco Contacts was founded in 1996. For 20 years we have been manufacturing and supplying electrical contact kits. Five years ago we introduced our own line of magnetic coils. More recently we have been building our stock of overload heaters and other motor control products. We are experts at parts identification. Have an obsolete part? Let us rebuild your existing contacts. Check out our rebuild page to see some examples.