Overview Reviews Product Description Belimo Damper Actuator, 54Â in-lb [6Â Nm], Electronic fail-safe, AC/DCÂ 24Â V, On/Off Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Belimo Belimo NKQB24-1 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments