max zs for 1492 and 1489 allen bradley breakers

[Simon Oldfield]

Hi we are using allen Bradley 1489 and 1492 range of circuit breakers, and I cant find the max zs values on any of the data sheets, does anyone have a list of them?
Many thanks

 

[westward10]

If they are new the curve should be written on them eg.. C16A indicates Type C, 16A.

 

[LeeH]

Are you trying to squeeze a circuit to comply by not using the 7671 tabulated values?

The only time I looked at that was with a Merlin MCB, the values on the data sheet were the same.

 

[Simon Oldfield]

Thanks for your replies. I cant find any information on what the BS number is, it has the iec 60947-2 but i dont know what that converts to for me to find the max zs values. I've looked through the data sheets and just cant find it anywhere.

 

[Simon Oldfield]

They are new but they dont have a bs number on to check against the max zs tables. Thanks for your reply

 

[davesparks]

A quick Google search shows their 1492 range to be terminal blocks and their 1489 range to be mcbs aimed at the American Market but also approved to 60947-2 with type C or D curves.

So you need to establish whether you have the C or D and then look it up from there.

 

[westward10]

1492 is also a 60947-2 device and they both come in B, C or D curves.