if i remember right our inspector allows us to put them on single pole breakers as long as the breakers are on the same phase, so there's no possibility of 240v through a short to a device
I hope you are not
Each leg of a multiwire branch circuit must
be connected to different buses in the panel.
Any other way can result in overloading the neutral.
Branch Circuit, Multiwire. A branch circuit that consists of two or more ungrounded conductors that have a voltage between them, and a grounded conductor that has equal voltage between it and each ungrounded conductor of the circuit and that is connected to the neutral or grounded conductor of the system.
In order for the ungrounded conductors to have a 'voltage between them' they must be on opposite panel busses.
[This message has been edited by iwire (edited 02-14-2005).]