Brookfield Industries, Inc.

Thomaston, CT 06787
In-Ground Door Operator supports stack pressure monitoring.
Designed for heavy-duty applications,- NB-500-LE-OPCON in-floor, springless, power open/power close door operator is rated for doors weighing up to 2,500 lb or operating torque of 1,000 lb-in. UL50 TYPE 4, In-Floor Underground Conversion is also UL 325 Listed. Product provides flexibility for heavier doors to resist stack pressure or wind loads, yet remain compliant with ANSI 156.19 when...
Read More »Low Energy Swinging Door Operator complies with ANSI 156.19.
Designed for opening and closing heavy commercial and industrial type doors, NB-500-LE delivers drive train ratio and forward/reverse current limit resolution that enable operator to meet/exceed manual force requirements of 30 lb/15 lb. Product can be fine-tuned to stall with less than 15 lb of max force while supporting adjustment for moving doors with as much torque as 1,000 lb-in. when...
Read More »In-Ground Door Operator supports stack pressure monitoring.
Designed for heavy-duty applications,- NB-500-LE-OPCON in-floor, springless, power open/power close door operator is rated for doors weighing up to 2,500 lb or operating torque of 1,000 lb-in. UL50 TYPE 4, In-Floor Underground Conversion is also UL 325 Listed. Product provides flexibility for heavier doors to resist stack pressure or wind loads, yet remain compliant with ANSI 156.19 when...
Read More »Low Energy Swinging Door Operator complies with ANSI 156.19.
Designed for opening and closing heavy commercial and industrial type doors, NB-500-LE delivers drive train ratio and forward/reverse current limit resolution that enable operator to meet/exceed manual force requirements of 30 lb/15 lb. Product can be fine-tuned to stall with less than 15 lb of max force while supporting adjustment for moving doors with as much torque as 1,000 lb-in. when...
Read More »