Overview Reviews Product Description Valve Actuator, Electronic fail-safe, AC/DCÂ 100...240Â V, On/Off, Normally Closed, Fail-safe position Closed Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Belimo Belimo CQKBUP-RR Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments