Abstract: Drawout apparatus includes a carriage mounting a circuit breaker and supported on rails to facilitate racking screw induced movement of the breaker into and out of an electrically engaged position with respect to switchboard primary disconnect contacts. A carriage mounted latch lever is controllably positioned in response to the turning of the racking screw so as to latchably engage a switchboard mounted latch as the circuit breaker arrives at its engaged position, thereby assisting in holding the breaker thereat against blowout forces attending a high fault current interruption. Initial rotation of the racking screw to withdraw the breaker from its engaged position incidentally disengages the latch lever and latch.

Abstract: Electrical joint apparatus includes an array of stab connectors each having a pair of spaced contact fingers and an array of receiver connectors each also having a pair of spaced contact fingers arranged in individual lapped relation with respective contact fingers of an associated stab connector. Heat sinks are mounted with suitable insulators between the contact fingers of adjacent stab connectors and also between the contact fingers of each receiver connector. A clamping rod extends freely through aligned apertures in the stab fingers, heat sinks and insulators and through notches in the receiver fingers and the heat sinks mounted therebetween. The compression springs are carried by the rod at each end of the stab connector array.

Abstract: An anti-turn clip is formed having an elongated body with a bolt hole adjacent one end accommodating the bolt clamping a bus bar and a line strap in electrical connection. Arms extending laterally from the clip body adjacent the bolt hole straddle the strap and a tab at the other end of the clip body is lodged in a hole in the bus bar, thereby to prevent angular movement of the strap should the bolted joint loosen.