Motor Specifications; Power Connections; Grounding Instructions - Delta RT-40 Manual De Instrucciones

MOTOR SPECIFICATIONS

Model 36-790 is equipped with a 7.5 HP three phase motor prewired for 230 V, 60 Hz power. The unit can be reconfigured
for 208 V or 460 V, 60 Hz operation.

POWER CONNECTIONS

To reduce the risk of injury, turn unit off and disconnect it from power source before installing and removing
accessories, before adjusting or when making repairs. An accidental start-up can cause severe injury.
Model 36-790 is not equipped with a power supply cord and is intended to be permanently connected to the power source. All
electrical connections should be made by a qualified electrician in accordance with the National Electric Code and all local
codes and ordinances. ALWAYS DISCONNECT THE POWER BEFORE SERVICING.
NOTES FOR THE ELECTRICIAN
Use a three-conductor hard-service or junior hard-service
minimum #10 AWG flexible cord with ground to connect the
machine to a protected branch circuit suitable for a 7.5HP,
208-230/460 V three-phase induction motor. The motor
is pre-wired for operation with 208-230 V, 60Hz power.
Connect L1, L2 and L3 to the terminal blocks marked R, S
and T (Fig. A1) and the earthing conductor to the terminal.
Torque the terminal block screws to 4.5-7.0 lb.in. Jog the
power switch and check for proper blade rotation (curvature
of blade should spin towards front of tool). Interchange any
two line leads to reverse.

gROUNdINg INSTRUCTIONS

This machine must be grounded while in
use to protect the operator from electric shock.
This tool should be connected to a grounded metal
permanent wiring system; or to a system having an
equipment-grounding conductor. Terminate the connecting
cord earthing conductor in the
of the terminal block. Make certain the other end is securely
bonded to the branch circuit ground.
460 VOLT OPERATION
This unit may be configured to operate from a 460V, 60Hz
source.
(A) Reconnect the motor for 460 V according to motor
nameplate wiring diagram.
B) Change the transformer primary voltage tap from
Terminal 3 (230 V) to Terminal 4 (460 V) (Fig. A2).
(C) Replace the 15-23 A overload with 8-12 A overload set
to 9A trip (Fig. A3).
Torque the overload and contactor terminal screws to 14.2 -
26.6 lb.in. Set the overload to 'auto' reset.
208 VOLT OPERATION
The unit is usable from 208 V, 60Hz supply provided
the overload trip current (Fig. A5) is set to 20 A and the
transformer primary voltage tap is changed from terminal '3'
to terminal '2' (208 V) (Fig. A4).
(earth or ground) terminal
Fig. A2
Fig. A4
5
Fig. A1
Fig. A3
Fig. A5