Electrical Connections; Before Applying Power: Checklist - Joslyn TransEnd 50 Installation, Operation And Maintenance Manual

W A R N I N G !

Electrical Connections

Before Applying Power:
Checklist
™
JOSLYN TRANSEND INSTALLATION, OPERATION AND MAINTENANCE MANUAL ISSUED 6.01
®
WARNING! Be sure power is off before terminating the TransEnd leads.
Raceway: To route TransEnd conductors to the panel being protected,
choose from any of these materials: (1) non-metallic flexible conduit,
(2) metallic flexible conduit, (3) rigid conduit or (4) a nipple. The
TransEnd enclosure is provided standard with a 3/4-inch hub which will
accept rigid or IMC conduit. A plastic flexible conduit with fitting and
a 3-inch nipple are available as options.
Wire length: Use the supplied 24-inch, #10 AWG leads. Trim leads to
suit the application but do NOT splice to add length to the leads. Refer
to Figures 1 through 4 for the color code of the TransEnd leads.
Terminate the leads as shown. (Note: For optimum performance, keep
leads as short as possible and avoid sharp bends.)
Overcurrent protection: TransEnd leads must be protected with an over-
current protection device (circuit breaker or fuse) rated at 20 amps. Use
a 3-pole breaker for 3-phase units or a 2-pole breaker for single-phase
units.
Dry Contacts: For TransEnd units with optional Form "C" dry
contacts, use butt splices within the panelboard to connect the Form "C"
leads to the user's monitoring circuits. Alternatively, install a junction
box between the TransEnd and the panelboard to connect Form "C"
leads to user's monitoring circuits. (See Fig. 6 under "Options," page
8). Consult applicable local codes to ensure proper installation.
➤ Measure the line to line voltage at the panel to be protected and be
sure it is within ±10% of rated line to line voltage of the TransEnd. Use
the following table to determine the range of acceptable voltage for
each model of TransEnd.
Acceptable Voltage Ranges for All TransEnd Models
TRANSEND
MODEL NO
XNxxx-120/240-2G
XNxxx-120/208-3GY
XNxxx-220/380-3GY
XNxxx-277/480-3GY
XNxxx-120/240-3GHD
XNxxx-240-3DG
XNxxx-380-3DG
XNxxx-480-3DG
WARNING! Do not apply power if the measured voltage is not within
the range specified for the TransEnd model being installed. Do not hi-
pot the electrical system that the TransEnd is connected to without
disconnecting all TransEnd conductors including phases, neutral and
ground.
NOMINAL L-L -10% to +10%
VOLTAGE L-L VOLTAGE
240 216 to 264
208 188 to 228
380 342 to 418
480 432 to 528
240 216 to 264
240 216 to 264
380 342 to 418
480 432 to 528
7