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The PAT B3 Anti Two Block Switch was made obsolete by Hirschmann at the beginning of 2016. Because the frequency used by these older switches is no longer available there is unfortunately no single replacement switch that will work with the PRS40 or PRS80 systems.
However, a number of retrofit anti two block kits are available and listed below.
Identifying Your PAT B3 Anti Two Block Switch
PAT B3 Replacement Options
( Complete Replacement Kit )
Hirschmann PRS90 - $2446
INCLUDES:
- Multi Function Display (102050)
- A2B Switch (102030)
- Weight & Chain (102030)
- Mounting Hardware (102030)
Frequency Issues with 031-300-060-593 PAT B3 Anti Two Block Switch
The the advance of wireless radio technology has allowed for stronger and more reliable radio frequencies to be used in current wireless systems including the new PRS90 and Hirschmann B5 Wireless Anti Two Block Switch. While this is a good thing for current systems, it provides a problem with older components like the B3 switch because old components and new ones are not compatible. So a new B5 wireless A2B switch will not work with an older PRS40 or PRS80 system which operate on the older B3 frequency. One can not simply replace an old B3 switch with a new B5 one without also replacing the receiving console/display that works on the same frequency. We at BTS Crane unfortunately have no control over these manufacturer specifications, however we can offer some options for you to replace your old 031-300-060-593 PAT B3 Wireless Anti Two Block Switch.