Importance

Loading Importance Indicators...

Abstract

In one aspect, a contact block for use with an electrical relay includes a grippable portion and a plurality of blocking portions extending from the grippable portion. The plurality of blocking portions are oriented in a parallel relationship relative to each other. The grippable portion and the plurality of blocking portions are substantially coplanar. In another aspect, a control system includes an electrical relay having a base, a contact arrangement supported on the base and a cover moveable between at least a first position, wherein the cover is releasably secured to the base over the contact arrangement, and a second position wherein the cover is disengaged from the base with the contact arrangement exposed to the user. The system further includes a contact block having a primary blocking portion and a secondary blocking portion. The primary blocking portion is releasably inserted into the contact arrangement and the secondary blocking portion is disposed between the cover and the base when said cover is in the second position. The secondary block portion prevents the cover from being moved to the first position. In yet another aspect, a method of blocking an electrical contact arrangement is provided.

Loading the Abstract Image...

First Claim