Delta LA302R User manual

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P.O. BOX 750 BIG SPRING, TX 79721 [phone]
INSTALLATION
If there is a surge so strong that something must be damaged, we prefer that our arrestor be
damaged rather than your equipment. Since we expect the arrestor might be damaged,
install it in a regular electrical enclosure to protect personnel from accidental contact with live
parts. Should the arrestor be damaged, it will not damage other components in the box. If the
arrestor cannot be placed in an enclosure, consider using our vent valve model. Its case will
not rupture. A small vent on the bottom of the case will open.
To protect a submersible pump motor, connect the black wires to the line terminals and the
white wire to the casing and/or tubing.
To protect equipment on a radio tower or a drilling rig, mount the arrestor to a junction box at
the bottom of each string of lights going up to the tower. Connect the black leads to the
circuit conductors and the white wire to the rig steel. Arrange for the conductors feeding the
junction box to be parallel with the earth. Connect an arrestor to the generator leads
grounding the white wire to the generator frame. Connect an arrestor to each lighting panel
connecting black wires to the circuit conductors, and the white wire to the box and rig frame.
To protect a house, the arrestor should be mounted on an outside switch or junction box, or
in the breaker box. The black wires should be connected to the circuit. The white wire should
be connected to the neutral, the box, and/or a solid ground. Model numbers G have a
separate ground wire.
To protect electronic equipment such as computers, transmitters, receivers, etc., connect the
black wires to the terminals of the device and the white wire to chassis. Mount the arrestor in
the cabinet. Consider using a surge capacitor connected to the breaker feeding them.
To protect a watt-hour meter, connect the black wires to the line terminals, and the white wire
to the meter box.
To protect an electric motor on machinery, connect the black wires to the motor leads and
the white wire to the motor frame.
Where the switch and motor are within six feet of each other, one arrestor will protect both
provided a solid ground wire is fastened to the switch box, motor frame, and arrestor white
wire. However, optimum protection is afforded only when the arrestor is connected directly to
the device to be protected.
To protect a motor control switch separately, connect the black wires to the line terminals
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and the white wire to the box.
In all cases, it is the electrical insulation that is to be protected. Once in the circuit, the high
voltage ruptures the insulation of the equipment in its effort to discharge to ground. The
arrestor provides a parallel path to ground for the current discharge. Consequently, the black
wires need to be connected to the circuit, and the white wires need to be connected to the
metal frame of the machine or device to be protected. A mere ground connection will not
necessarily provide protection; however, it should be used in addition to the frame
connection.
GUARANTEE
Delta Lightning Arrestors guarantees and warrants to the end user that this arrestor is free
from defects in workmanship and material. The arrestor is designed to conduct 60,000 amps
of lightning or surge to ground without damage. When lightning or surge is in excess of
60,000 amps, the arrestor is expected to experience damage. In the event the arrestor
should damage due to defects, return it to the factory with payment of five dollars to cover
shipping and handling and it will be replaced. This guarantee is limited to replacement.
There is no other warranty, expressed or implied.
INSTALLATION INSTRUCTIONS: LA302R, LA302,CA302R
Caution! Electrical work can be dangerous and
should only be attempted by persons experienced
to do so. Accidental contact with electrically
charged parts can cause injury or electrocution.
Loose connections can cause over heating,
damage to equipment, and fire.
The arrestor remains good and functions properly as long as its enclosure is intact. Should
the arrestor ever be damaged the enclosure will burst. While it is not possible to achieve one
hundred percent protection, the Delta Arrestor will greatly reduce problems due to lightning
and power surge. This device is to be installed in accordance with all applicable
requirements of the National Electrical Code.

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Warning! To reduce the risk of fire, electric shock or personal injury, this secondary surge
arrestor shall be installed in conjunction with a disconnecting means which shall consist of a
manually operable Listed circuit breaker that has an interrupting rating sufficient for the
nominal circuit voltage and the current that is available at the line terminals of the secondary
surge arrestor. Connect black wires to lines load-side of fuse/breaker. Connect white wire to
neutral/ground.lines
Common Installation modes forTVSS, Arrestors, Surge Capacitors and SPD.
Check with your electrical inspector for local preference.
1
Weather head secure with ell bracket or strap.
2
Meter box white to neutral secure with ell
bracket or strap.
3
White to neutral secure with locknut.
4
Main box secure with ell bracket or strap.

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5
Main box secure with locknut.
6
Breaker box secure with ell bracket or strap.

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7
Breaker box secure with locknut.
8
Motor control box secure with ell bracket or
strap.
9
Motor control box secure with locknut.
10
Motor control box secure with ell bracket or
strap.

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11
Motor control box secure with locknut.
12
Motor junction box.

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