Technical data

7.3.3 Electrical Connection, Adjust Motor Protection
Fig.7-4: Fan connection 1-phase with circuit breaker
Protect from wrong connection!
● 230V: L1 auf Pin 1
● 115V: L1 auf Pin 3
WARNING
Fire danger! Improper temperature-rise of the motor cable due to motor
current.
⇒ dimension the power cable correctly, select the cross-section according to
the motor current
The connection of the fan units is to be done by adjustable motor protective
equipment.
The active principle of the motor circuit breaker is based on the motor current-
carrying bimetall-actuator, which heats-up faster than the motor winding and
disconnects it from the supply system before critical temperature values can be
reached.
The motor circuit breakers are adjusted with reference to the rated current of
the fan unit. Observe, when selecting the motor circuit breaker that the adjust-
ment range corresponds with the rated current of the fan unit.
7.3.4 Ordering
In order to procure a motor with attached surface-cooling, the type name of the
fan unit must be specified as an ordering subitem of the motor with the fan
arrangement desired.
Fusing due to the motor circuit
breaker
Motor with attached fan unit
Project Planning Manual | Rexroth IndraDyn S Electric Drives
and Controls
| Bosch Rexroth AG 127/194
Accessories and Options