Overview Reviews Product Description Optional external Bypass Switch for UPS up to 40kVA, U77-L-EMBS-W-063-441-R-00, 3-Phase In/Out, 4-pole wrap-around Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Vertiv Vertiv 40kVA Bypass Switch U77-L-EMBS-W-063-441-R-00 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments