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Generator Interlock Kit

Use your house wiring with a generator when the electric utility power fails

National Electrical Code requires a system in place that prevents an emergency generator from feeding back into the utility line.

A generator interlock will:


Kits include top and bottom interlock plates, hardware, warning stickers, generator operation instructions, drill bit, and installation instructions.

Generator Breaker Interlocks

for the following electric panels

Panel Brands

B-2
circuit breaker panel with Bryant main
Bryant Main Breaker 2 handle Bryant main breaker with the generator breaker vertically adjacent below or above the main breaker
CH-1
Eaton Cutler Hammer circuit breaker panel br3040b200v5
Cutler Hammer
1 handle horizontal throw right to left main breaker offset to the left over 2 breaker columns with a 1 1/4" space between main breaker and column breakers
CH-3
Eaton Cutler Hammer circuit breaker panel
Cutler Hammer
1 handle horizontal throw right to left main breaker offset to the right over 2 breaker columns with a 1 1/2" space between main breaker and column breakers
CH-5
Eaton Cutler Hammer circuit breaker panel CH40KKM200
Cutler Hammer
1 handle vertical throw main breaker centered over 2 breaker columns with a 2 1/4" space between main breaker and breaker column
CH-7
Eaton Cutler Hammer circuit breaker panel
Cutler Hammer
meter / main combination with 1 handle horizontal throw main breaker centered over 2 breaker columns with a 1 1/4" space between main breaker and breaker columns
CR-1
Challenger circuit breaker panel SMB20
Challenger/Westinghouse/Thomas & Betts meter / main with 2 handle vertical throw main breaker with a 4 1/2" space between main breaker and a single breaker column
CR-2
Challenger circuit breaker panel
Challenger/Westinghouse/Thomas & Betts 200A two handle horizontal throw main breaker offset 7/8" left of center and 1 1/4" above two breaker columns
CR-3
Challenger circuit breaker panel
Challenger/Westinghouse 2 handle vertical throw main breaker centered 3 1/2" above two breaker columns
CR-4
Challenger circuit breaker panel
Challenger/Westinghouse 2 handle horizontal throw main breaker offset 7/8" left of center and 7/8" to 1" above two breaker columns
CRO-1
Challenger circuit breaker panel
Crouse Hinds 2 handle horizontal throw main breaker offset 1/4" right of center and 1/2" above two breaker columns
GE-1
GE-1 Generator Interlock Kit
General Electric
4 handle horizontal throw main breaker - offset right of center 5/8"- over 2 breaker columns with a 1 1/4" to 1 5/8" space between main breaker and column breakers
GE-3
GE-3 Generator Interlock Kit
General Electric
1 handle vertical throw main breaker centered 2 1/2" to 3 1/2" above 2 breaker columns
GE-4
GE-4 Generator Interlock Kit
General Electric
4 handle vertical throw main breaker centered over 2 columns with a 2 1/4" space between main breaker and column breakers
GE-7
GE-7 Generator Interlock Kit
General Electric
2 handle horizontal throw main breaker - offset right of center 5/8"- over 2 breaker columns with a 1 1/4" to 1 5/8" space between main breaker and column breakers
GE-13
GE-13 Generator Interlock Kit
General Electric
4 handle vertical throw main breaker centered beneath 2 breaker columns with a 2 1/4" space between main breaker and column breakers
GE-25
GE-25
General Electric
1 handle vertical throw main breaker centered 2 1/8" above 2 breaker columns
GEN-1
GEN-1 Generator Interlock Kit
Murray, Siemens, GE, etc.
most any 2 handle horizontal throw main breaker opposite a 2 handle generator breaker with a 1 1/2" to 1 3/4" space between toggles when one is off and the other is on
GEN-2
GEN-2 Generator Interlock Kit
Murray, Siemens, GE, etc.
most any 2 handle horizontal throw main breaker adjacent above or below a 2 handle generator breaker
GEN-3
GEN-3 Generator Interlock Kit
Murray, Siemens, Bryant, etc.
2 handle horizontal throw main breaker with the generator breaker located 2 spaces lower or higher in the opposite column
GS-1
GS-1 Generator Interlock Kit
General Switch
100 amp 2 handle horizontal throw main breaker at the top of the left breaker column
ITE-1
ITE-1 Generator Interlock Kit
ITE - Murray
2 handle vertical throw main breaker centered 1 1/4" above two breaker columns
M-1
M-1 Generator Interlock Kit
Murray - ITE - Siemens
4 handle vertical throw main breaker centered over 2 breaker columns
M-2
M-2 Generator Interlock Kit
Murray - Crouse Hinds
hump main breaker with horizontal throw on top of the right side breaker column
M-3
Murray Breaker Panel LC236PC
Murray - Crouse Hinds
hump main breaker with horizontal throw on top of the left side breaker column
M-4
Murray Breaker Panel LC130DC
Murray - Siemens
100 amp 2 handle horizontal throw main breaker at the top of the right column
M-6
Murray Breaker Panel LC4040B1200
Murray - Siemens
200 amp 1 handle horizontal throw main breaker positioned 7/8" left of center and 1 1/4" above 2 columns of breakers
M-7
Murray Circuit Breaker Panel
Murray
200 amp 1 handle horizontal throw main breaker positioned at the top of the right column of breakers
M-8
Arrow Hart Murray Circuit Breaker Panel
Arrow Hart Murray
100 amp vertical throw main breaker centered 1/2" over two breaker columns - main is on in the down position
M-8A
Arrow Hart Murray Circuit Breaker Panel
Arrow Hart Murray
100 amp vertical throw main breaker centered 1/2" over two breaker columns - main is on in the UP position
M-9
Murray Circuit Breaker Panel LC3040B1100
Murray
100 amp 2 handle horizontal throw main breaker centered 1 1/4" over two breaker columns
SD-1
Square D Homeline SC3040M200RS
Square D
4 handle horizontal throw main breaker, slightly right of center, over 2 breaker columns with a 2 1/4" to 2 11/16" space between main breaker and column breakers
SD-2
Square D Homeline HOMC42UC
Square D
1 handle horizontal throw left to right main breaker centered over 2 breaker columns with a 1 3/8" space between main breaker and column breakers
SD-3
Square D Homeline QO20M100RB
Square D
1 handle horizontal throw left to right main breaker centered over 2 breaker columns with a 1" space between main breaker and column breakers
SD-4
Square D Homeline QOC40MG225
Square D
1 handle vertical throw main breaker centered over 2 breaker columns with a 3 to 3 1/2 inch space between main breaker and column breakers
SD-5
Square D Homeline QBOW20M100
Square D
100 amp 2 handle horizontal throw main breaker at the top of the right column
SD-9
Square D
Square D
QO main breaker with a QO generator breaker adjacent above or below
SI-1
Siemens circuit breaker panel Homeline MC0408B1200T
Siemens
4 handle vertical throw main breaker centered over 2 breaker columns with a 2 5/8" space between main breaker and 4 column breakers
TB-1
Thomas & Betts Circuit Breaker Panel
Thomas & Betts
2 handle horizontal throw main breaker offset 7/8" left of center and 1 3/4" above two breaker columns
TB-2 (same as CR-2)
Thomas & Betts Circuit Breaker Panel
Thomas & Betts 200A two handle horizontal throw main breaker offset 7/8" left of center and 1 1/4" above two breaker columns
Accessories
inlet boxes - power cords - breakers

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