a hook 73 the second part of the hinge connection 67 is formed by arms 66 extending laterally from the free end 65 of the armature extension 63 that seat in the hooks 73 on the bracket 37 the mount 43 mounting the armature 41 on the bracket 37 further includes an adjustment member 75 which in the exemplary embodiment is a threaded rod this threaded rod 75 engages a tapped hole 77 adjacent a second end 79 of the bracket 37 a neck 81 adjacent one end of the threaded rod 75 is received in a slot 83 in a keyhole opening 85 in the extension 63 on the armature 41 alternatively the tapped hole can be provided in the armature extension 63 with the keyhole slot in the bracket other adjustment members for setting the angle between the armature and the bracket can also be used as shown in fig1 the spring 39 biases the armature assembly counterclockwise so that the bracket 37 seats against the stop 59 formed by the casing 51 setting a gap 87 between the armature paddle 61 and the u shaped magnetic yoke 33 high overcurrents flowing through the separable contacts 5 and therefore the load conductor 15.