A closure module and a method for closing and/or separating filled sausage casings connected via a sausage neck, comprising, in at least one example, a first electrode and a second electrode located opposite the first one, the electrodes being arranged such that a sausage neck can be placed therebetween and being adapted to be moved relative to each other and towards the sausage neck to such an extent that a current can flow from the first electrode into the sausage neck and via the sausage neck into the second electrode.