Mueller's new Patent Pending BU-21AEZ, clips are now in stock and will be shipping to distributors soon.
The simple answer is they do not have sufficient, if any, insulation for human protection. Most alligator or crocodile clips are rated for current (amperage) and not voltage. Even clips equipped with slip-on insulators do not meet agency requirements for a voltage ratings because the insulator can be moved (without tools) which would expose potentially hazardous bare metal.
Topics: Test & Measurement