Ditek D50-2403D Install Instructions

This Surge Protective Device (SPD) is a high performance device, designed to provide protection
for sensitive electronic loads connected to service panels, fire panels, or where the SPD is
DITEK Corporation
directly connected to the electronic device. Maximum protection will only be achieved if the SPD
ONE DITEK CENTER
1720 Starkey Road
is properly installed.
Largo, FL 33771
Please read and follow the installation instructions carefully.
NOTICE: This SPD should be installed by a licensed contractor in accordance with the National
and Local Electrical Codes and the following instructions.

APPLICATION

Type 1 SPD, Type 2 SPD for hardwired parallel installations on 240 VAC 3 phase Delta circuits.

INSTRUCTIONS:

Caution: Measure all voltages to insure applied voltage does not exceed the voltage rating of
the unit. Improper installation voids the warranty.
NOTE: Suitable for use on a circuit capable of delivering not more than 100,000 rms symmetrical
Amperes.
This SPD Contains no serviceable parts.
1. Turn off the power at the circuit breaker or main disconnect before beginning installation.
2. Remove front cover from the panel.
3. Remove 1/2" knockout on side of panel box for D100 models, 3/4" knockout for D50 model.
4. Make sure the leads are as short as possible with the ground wire being the shortest of all.
5. For D100 models, Unscrew locknut "A" from the Push-On Connector. The flexible conduit between
the connectors can be cut down to size as necessary. See the Illustrations Page on the back side of
this document for more information.
For D50 models, remove 3/4" locknut, leaving the washer in place.
6. Feed all wires and the nipple through knockout hole then through nut, tighten nut securing the unit.
7. Connect the Ground wire (Green) to the Ground bus making sure the ground wire is as short as
possible.
Ground Resistance Rule: Max ground resistance is 25 ohms, 5 ohms or less is optimum.
This cannot be an assumed value and must be measured to assure proper grounding.
8. Connect the Phase wires (Black) to the line side or load side of the Phase A, Phase B and
Phase C, 3 pole breaker.
9. Securely mount the enclosure using the mounting feet located at each corner.
10. After all connections have been made and no hazards exist, replace panel cover and restore power.
11. This device features an internal protection that will disconnect the surge protective component
but will maintain power to the load - now unprotected. If this situation is undesirable for the
application, follow the manufacturer's instructions for replacing the device.
3 POLE BREAKER
Drawn By: B. Aycock 5-19-16
Revised By: R. Mitchell 4/14/2020
INSTALL INSTRUCTIONS
D50-2403D, D100-2403D
BREAKER PANEL
LOCKNUT "A"
NEUTRAL BUS
BLACK WIRES
GREEN WIRE
GROUND BUS
DITEK Technical Support Available 24/7
1-888-472-6100 www.diteksurgeprotection.com
D100-2403D

Expected System Voltages

L - L HiL-G,N
120V Single Ø
240V Single Ø
120/240V Split Ø 240
120/240V Hi Leg Δ
120/208V 3 Ø Wye 208
277/480V 3 Ø Wye 480
347/600V 3 Ø Wye 600
240V 3 Ø Δ
240
480V 3 Ø Δ
480
600V 3 Ø Δ
600
D50-2403D
L - G L - N
NA NA 120 120
NA NA 240 240
NA 120 120
240 240 120 120
NA 120 120
NA 277 277
NA 347 347
NA 240 NA
Max
NA 480 NA
Max
NA 600 NA
Max
Doc # INT-100123-001
Part No. 191549 Rev. 6
N - G
0
0
0
0
0
0
0
0
0
0