Allen Bradley W21AB – Heater Element | Overload relay protection
Lanco’s W21LC is the equivalent of the Allen Bradley W21AB heater element. The old style type N heater elements are used with Bulletin 709 motor starters and overload relay blocks. Heater selection should be based on the full load current and service factor which is listed on the motor nameplate. 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.