Intermatic EH User Manual
Installation Instructions
Enhanced Commercial / Industria l
Hardwired Surge Protection Devices
CAUTION: Turn off power to the electric service or panel and to equipment to be protected
before installing any Surge Protection Device. All wiring should be done by a qualified
electrician and comply with the National Electric Code and local electric codes.
INSTALLA TION
1. Test and verify system voltage to assure proper model selection of Surge Protection Device
(SPD). Refer to the wiring configurations and voltages on page 2 and 3 for additional
information. The Enhanced Commercial Series of SPD must be installed downstream from a
400 amp or less current interruption device or circuit breaker.
2. Turn Power OFF.
3. Remove the knock out from the load center or equipment panel that will position the SPD for
the shortest wire lead distance. Note that the shorter the lead length between the SPD and
the load center, the better the protection.
4. Mount the SPD to the panel or an adjacent wall. If the mounting position prevents the direct
connection of the offset nipple to the load center or equipment panel, a short piece of conduit
must be used to comply with the National Electrical Code.
5. For Flush Mount Panels, use the Intermatic Flush Mount Plate Model number IG1FMP-H.
a) Use the template enclosed with the Flush Mount Plate to mark the wall.
b) Cut and remove the marked wall section.
c) Remove the four corner bolts from the cover of the SPD, do not remove the cover.
d) Position the Flush Mount Plate over the cover of the SPD and replace the four bolts.
e) Mount the SPD to the wall after completing step 6 below.
6. Twist or ty-wrap lead wires to eliminate any space or gaps between them. Pass the wires
through the selected knockout and secure the SPD.
7. Cut each wire lead to the proper length. DO NOT coil extra wire length.
8. Connect the GREEN wire lead to the system ground.
9. Connect the WHITE wire lead to the system neutral bus. When a panel is the main panel,
the neutral bus may be the same as the ground bus.
10. Connect each phase wire (a circuit breaker is optional). Make sure that the phase wires have
the correct voltage level between them. Note that for the 240 volt High Leg Delta, the wire for
the High Leg is colored RED, and must be connected to the leg that measures approximately
208 volts to neutral and to ground. Failure to comply with this instruction will result in failure
of the SPD and void the warranty.
11. Check all connections for proper tightness or torque. Suggested torque values are published
by the circuit breaker manufacturer.
12. Turn Power on.
13. Make sure that each indicator on the SPD is ON. If not, turn power off and recheck each
installation step listed above.
14. For troubleshooting assistance, call Intermatic at 815-675-7000 and ask for Technical
Support.
INSTALLATION NOTE:
The cover of the SPD may be rotated 180
Carefully remove the four corner bolt s , r otate the cover and reinstall the bolts. Care must be exercised t o
prevent damage to the wire leads to the LED indicators.
degrees if the device must be installed in an inverted posit ion.
WIRING CONFIGURATIONS
Transformer
Secondary
Use 30 amp Breakers (optional)
Load
Center
Black/Negro
Noir
White/
Blanc
Blanc
Green/Verd
Vert
Transformer
Use 30 amp Breakers (optional)
NOTE: All ‘EH’ units must be installed downstream from breaker or fuse of 400 amps or less capacity.
A 30-amp breaker is recommended as a convenient connection point when installing on a breaker panel.
120 volt Single Phase
L1
N
G
Model IG1201EH
120/240 volt Single (Split) Phase
Load
Transformer
Secondary
Center
L1
L2
N
G
Use 30 amp Breakers (optional)
Black/Negro
Noir
Black/Negro
Noir
White/Blanco
Blanc
Green/Verde
Vert
Model IG2401EH
120/208 volt Three Phase WYE
Secondary
Load
Center
L1
L2
L3
N
G
Black/Negro
Noir
Black/Negro
Noir
Black/Negro
Noir
White/Blanco
Blanc
Green/Verde
Vert
Model IG2083YEH
CONFIGURATION VOLTAGE
Line to Neutral 120
Line to Ground 120
CONFIGURATION VOLTAGE
Line to Line 240
Line to Neutral 120
Line to Ground 120
CONFIGURATION VOLTAGE
Line to Line 208
Line to Neutral 120
Line to Ground 120
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