Vaillant Überbrückungsstecker 252764 VK 60-156/3-2 E VK 6-47/4-1 XE VK 6-47/4-2 XE VKG 2-176..2-482/2 VKG 88-241/2 VKO 22-70 VKO unit 17-42 VKS 11-26/2 E VKS 12-20/3 E VKS 31-42/2 E VKS 47/2 E VKS 58-93/1 E VKS 60-156/2 E VKS 6-26/4-1 XE VKS 6-26/4-2 XE VKS D 11-23 E VKS D 29-41 E VKS D 48 E VKU 11-21/2 E VKU 11-21/3-1 XE VKU 11-23/1 E VKU D 11-23 E