Lenze 8250 series Brake unit - Manual (Page 19)

Technical Data
3-4 8250BA0903
3.3.3 Overcurrent relay and cable cross-sections
With a cable cross section of the feeding inverter of > 2.5 mm 2,
the cable can be protected via overcurrent relay.
The cable cross-sections used must meet the valid regulations.
We recommend:
Type Input +UG, -UG
Overcurrent relay Cable cross-section
[A] [mm 2 ]
8251 not required 1.5
8252 not required 1.5
8253 max 12 * 2.5
* depending on the brake resistor
3.4 Dimensions
The dimensions of the brake units depend on the mechanical
installation (see chapter 4.1)
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