4-28 BE1-32R, BE1-32O/U Installation 9171100990 Rev R
MAINTENANCE
BE1-32R and BE1-32O/U relays require no preventative maintenance other than testing performed
according to scheduled practices.
Repair
Repair of the draw-out assembly by replacement of individual circuit boards is not recommended. The
printed circuit boards are not intended to be field serviceable.
If a relay failure occurs in a critical application without sufficient redundancy, protection can be restored
by inserting a spare relay in the mounted and wired case of the relay requiring service. The draw-out
assembly requiring service can then be returned for service in the case from the spare relay. If a spare
case is not available, care should be used when packing the draw-out assembly for shipment. Use anti-
static packing material that prevents mechanical damage during transit.
Before returning a relay for repair, contact the Basler Electric Technical Services Department at 618-654-
2341 for a return authorization number.
Maintenance Accessories
Test Plug
Test plugs (Basler P/N 10095) enable relay testing without removing the relay from the case. Test plugs
are simply substituted for the connection plugs. This provides access to the external stud connections as
well as the internal circuitry.
Test plugs consist of black and red phenolic moldings with 20 electrically separated contact fingers
connected to 10 coaxial binding posts. Fingers on the black side are connected to the inner binding posts
(black thumbnuts) and tap into the relay internal circuitry. Fingers on the red side of the test plug are
connected to the outer binding posts (red thumbnuts) and connect to the relay case terminals.
When testing circuits connected to the bottom set of case terminals, the test plug is inserted with the
numbers 1 through 10 facing up. Similarly, when using the test plug in the upper part of the relay, the test
plug is inserted with the numbers 11 through 20 facing up. Due to the construction of the test plug, it is
impossible to insert it with the wrong orientation.
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