A method for latching at least one pole (PR-E) of a relay for maintaining an engaged at least one first contact with said at least one pole by a latching device extended between said at least one pole and one of a base and a body of said relay, wherein said relay is operated by a magnetic coil fed with an electric power pulse having sufficient time duration for pulling an armature (PM-E) attached via its lower surface with said at least one pole and compressing said latching device for reversing said relay state; and wherein said relay state is selected from a group comprising switch on, switch over, switch off and one of cross and straight reversal of a dual pole dual throw by engaging said at least one pole with said at least one first contact and at least one second contact including no contact respectively, the method comprising the steps of: 1. feeding said electric power pulse to said coil; 1a. said armature and said at least one pole attached to the armature lower surface are pulled and said latching device is compressed through said time duration; 1b. said pull, said compress and said engaging at least one of first contact and at least one second contact including no contact respectively are maintained through; 1c. said armature and said pole are released at the end of said time duration into a partial release movement by guiding a lock link movement into one of a lock point and a release point of an indentation path of a bar being one of the latching and release position of said latching device when said power feed is cut; 1d. the engaging of at least one said first contact, the at least one second contact, the no contact and the reversal through the partial release movement and through a move into said lock point is maintained through; 2. feeding a fresh said power pulse for guiding the lock link into one of said release point and said lock point to reverse said relay state selected from a group comprising from on to off, off to on, switch over and between one of straight and cross; 1. feeding a fresh said power pulse to said coil for starting fresh said 1a. to 1d. steps. 1. feeding said electric power pulse to said coil; 1a. said armature and said at least one pole attached to the armature lower surface are pulled and said latching device is compressed through said time duration; 1b. said pull, said compress and said engaging at least one of first contact and at least one second contact including no contact respectively are maintained through; 1c. said armature and said pole are released at the end of said time duration into a partial release movement by guiding a lock link movement into one of a lock point and a release point of an indentation path of a bar being one of the latching and release position of said latching device when said power feed is cut; 1d. the engaging of at least one said first contact, the at least one second contact, the no contact and the reversal through the partial release movement and through a move into said lock point is maintained through; 1a. said armature and said at least one pole attached to the armature lower surface are pulled and said latching device is compressed through said time duration; 1b. said pull, said compress and said engaging at least one of first contact and at least one second contact including no contact respectively are maintained through; 1c. said armature and said pole are released at the end of said time duration into a partial release movement by guiding a lock link movement into one of a lock point and a release point of an indentation path of a bar being one of the latching and release position of said latching device when said power feed is cut; 1d. the engaging of at least one said first contact, the at least one second contact, the no contact and the reversal through the partial release movement and through a move into said lock point is maintained through; 2. feeding a fresh said power pulse for guiding the lock link into one of said release point and said lock point to reverse said relay state selected from a group comprising from on to off, off to on, switch over and between one of straight and cross; 1. feeding a fresh said power pulse to said coil for starting fresh said 1a. to 1d. steps.