The 10 best mechanical interlock 2022

Finding the best mechanical interlock suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.

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Siemens ECSBPK01 Generator Standby Power Mechanical Interlock Siemens ECSBPK01 Generator Standby Power Mechanical Interlock
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Siemens ECSBPK02 Generator Standby Power Mechanical Interlock Siemens ECSBPK02 Generator Standby Power Mechanical Interlock
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Siemens ECSBPK03 Generator Standby Power Mechanical Interlock Siemens ECSBPK03 Generator Standby Power Mechanical Interlock
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Square D by Schneider Electric QOCGK2C QO Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit Square D by Schneider Electric QOCGK2C QO Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit
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SD-200A Square D Generator Interlock Kit QO & Homeline Indoor or outdoor 150 or 200 amp panels SD-200A Square D Generator Interlock Kit QO & Homeline Indoor or outdoor 150 or 200 amp panels
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ITE-200A Gould, ITE, Murray, Siemens, or Thomas & Betts Generator Interlock Kit 150 amp or 200 amp panels ITE-200A Gould, ITE, Murray, Siemens, or Thomas & Betts Generator Interlock Kit 150 amp or 200 amp panels
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SD-200SA Square D Generator Interlock Kit for Homeline Meter Main 150 or 200 amp breaker SD-200SA Square D Generator Interlock Kit for Homeline Meter Main 150 or 200 amp breaker
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Siemens ECSBPK05 Generator Standby Power Mechanical Interlock Siemens ECSBPK05 Generator Standby Power Mechanical Interlock
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Siemens ECSBPK06 Generator Standby Power Mechanical Interlock Siemens ECSBPK06 Generator Standby Power Mechanical Interlock
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MUR-200A Murray or Siemens Generator Interlock Kit 150 amp or 200 amp panels MUR-200A Murray or Siemens Generator Interlock Kit 150 amp or 200 amp panels
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1. Siemens ECSBPK01 Generator Standby Power Mechanical Interlock

Feature

UL Listed
For use on Siemens or Murray panels
Main breaker is double pole QP breaker 15-125 Amp
Standby power breaker is a QP or MP type
No modification of panel required; Breakers not included

Description

Siemens standby power mechanical interlock kits provide a means to ensure that the main breaker powered by utility power within a panel is forced to the OFF position when standby power is in use. It also ensures that the standby source is forced to the OFF position when the utility power is in use. This model (ECSBPK01) is designed for use on load centers or meter combinations that will accept 2-pole circuit breakers opposite one another. It's compatible with QP, QPH, and HQPH utility main breaker and standby main breaker types.

The most common application for an interlock kits is when a portable generator is used to provide back up power to a building. If the utility main breaker in a panel is left in the -"ON"-position while a generator is powering the panel, dangerous back feeding of the utility power lines can occur.

ECSBPK01
The ECSBPK01 interlock kit (view larger).
ECSBPK01 hand
Use on Siemens or Murray panels (view larger).
siemens logo

ECSBPK01 Generator Standby Power Mechanical Interlock

At a Glance
  • UL listed for use in most Siemens load centers and meter combinations
  • Remains attached to the main breakers when load center cover
  • Corrosion resistant finish
  • For use on Siemens or Murray panels
  • Easy assembly requiring no modifications to the load center or meter combination
  • Suitable for use with optional standby systems in accordance with article 702 of the National Electric Code

2. Siemens ECSBPK02 Generator Standby Power Mechanical Interlock

Feature

UL Listed
For use on Siemens or Murray panels
Main breaker is double pole QP breaker 15-125 Amp
Standby power breaker is a QP or MP type
No modification of panel required; Breakers not included

Description

Siemens ECSBPK02 Manual Transfer Interlock Kit For Use With Load Centers Or Meter Combinations

3. Siemens ECSBPK03 Generator Standby Power Mechanical Interlock

Feature

Ensures the main breaker within a panel is forced to the off position when standby power is on
For use on Siemens or Murray panels that are 150, 200, or 225 amp, ultimate or rock solid type
Standby power breaker must be a QP or MP double pole breaker
Adds an extra level of safety
No modification of panel required; Breakers not included

Description

Siemens standby power mechanical interlock kits provide a means to ensure that the main breaker powered by utility power within a panel is forced to the OFF position when standby power is in use. It also ensures that the standby source is forced to the OFF position when the utility power is in use. This model (ECSBPK03) is designed for use on Ultimate and Rock Solid load centers (150 amp and higher) to connect the main breaker to a 2-pole circuit breaker. It's compatible with MBK150A, MBK200A, and MBK225A utility main breaker types and QP, QPH, and HQPH standby main breaker types.

The most common application for an interlock kits is when a portable generator is used to provide back up power to a building. If the utility main breaker in a panel is left in the -"ON"-position while a generator is powering the panel, dangerous back feeding of the utility power lines can occur.

ECSBPK03
The ECSBPK03 interlock kit (view larger).
ECSBPK03 panel
Use on Siemens or Murray panels (view larger).
siemens logo

ECSBPK03 Generator Standby Power Mechanical Interlock

At a Glance
  • UL listed for use in most Siemens load centers and meter combinations
  • Remains attached to the main breakers when load center cover
  • Corrosion resistant finish
  • For use on Siemens or Murray panels
  • Easy assembly requiring no modifications to the load center or meter combination
  • Suitable for use with optional standby systems in accordance with article 702 of the National Electric Code

4. Square D by Schneider Electric QOCGK2C QO Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit

Feature

Use to interlock the QOM1 or QOM2 main breaker with a 2-pole breaker back fed from a generator
For use on indoor QO 150A - 225A Main Breaker Load Centers
Choose where you want to direct generator power to any circuit within the home
Does not require a separate generator panel
Includes an interlock bracket, retaining bracket, 1-hole drilling template, 3 hex nuts, (3) 10 - 32 shoulder screws and (1) interior mounting screw

Description

Avoid the inconveniences that an unexpected power outage can cause with this QO Indoor Generator Interlock Kit. The Square D QO Cover Generator and QOM2 Frame Size Main Breaker Interlock Kit is used to direct generator power to any circuit within your home. For use on "G" and "S" Series NEMA 1 and "G" and "S1" Series NEMA 3R load centers. Interlocks a QOM2 2 Pole main circuit breaker of a load center (150-225 A) with a QO 2 Pole (15-125 A) branch circuit breaker. Includes a retaining kit.

5. SD-200A Square D Generator Interlock Kit QO & Homeline Indoor or outdoor 150 or 200 amp panels

Feature

Generator Breaker Interlock for Square D QO or Homeline Indoor or outdoor with main 150 or 200 amp panels
1 3/8 spacing between main and branch breakers
Met Lab listed E113887
Kit includes Interlock, labeling, drill bit and generator breaker retainer strap
PLEASE Verify panel type by checking second or third pictures

Description

Generator Interlock Kit Fits Square D QO or Homeline 150 or 200 amp panels. Spacing between main and generator breaker 1 3/8 inches Met lab listed E113887 Panel and breakers not included

6. ITE-200A Gould, ITE, Murray, Siemens, or Thomas & Betts Generator Interlock Kit 150 amp or 200 amp panels

Feature

Generator Breaker Interlock for ITE, Gould, Murray and Siemens 150 or 200 amp panels
1 1/4 spacing between main and branch breakers
Met lab listed E113887
Kit includes Interlock, labeling, drill bit and generator breaker retainer strap
PLEASE Verify panel type by checking second picture

Description

Generator Interlock Kit Fits Gould, ITE, Murray, Siemens, and Thomas and Betts, 150 or 200 amp panels. Spacing between main and generator breaker 1 1/4 inches Met lab listed E113887 Panel and breakers not included

7. SD-200SA Square D Generator Interlock Kit for Homeline Meter Main 150 or 200 amp breaker

Feature

Generator Interlock Kit for Square D 150 or 200 amp Meter Main
Met lab listed E113887
Kit includes Interlock, drill bit, labeling and retaining strap for generator breaker
PLEASE Verify panel type by checking second picture

Description

Generator Interlock Kit for Square D Meter Main 150 or 200 amp break. Met lab listed E113887. Panel and breakers not included

8. Siemens ECSBPK05 Generator Standby Power Mechanical Interlock

Feature

UL Listed
For use on Siemens or Murray panels
Main breaker is QNR or MD-TR type
Standby power breaker must be a QP or MP-T double pole breaker
No modification of panel required; Breakers not included

Description

Siemens standby power mechanical interlock kits provide a means to ensure that the main breaker powered by utility power within a panel is forced to the OFF position when standby power is in use. It also ensures that the standby source is forced to the OFF position when the utility power is in use. This model (ECSBPK05) is designed for use on load centers or meter combinations that will accept a QNR (MD-TR) frame circuit breaker next to a 2-pole circuit breaker. It's compatible with QNR, QNRH, and HQNR utility main breaker types and QP, QPH, and HQPH standby main breaker types.

The most common application for an interlock kits is when a portable generator is used to provide back up power to a building. If the utility main breaker in a panel is left in the -"ON"-position while a generator is powering the panel, dangerous back feeding of the utility power lines can occur.

ECSBPK05
The ECSBPK05 interlock kit (view larger).
ECSBPK05 hand
Use on Siemens or Murray panels (view larger).
siemens logo

ECSBPK05 Generator Standby Power Mechanical Interlock

At a Glance
  • UL listed for use in most Siemens load centers and meter combinations
  • Remains attached to the main breakers when load center cover
  • Corrosion resistant finish
  • For use on Siemens or Murray panels
  • Easy assembly requiring no modifications to the load center or meter combination
  • Suitable for use with optional standby systems in accordance with article 702 of the National Electric Code

9. Siemens ECSBPK06 Generator Standby Power Mechanical Interlock

Feature

UL Listed
For use on Siemens or Murray panels
Main breaker is QN or MD-T type
Standby power breaker must be a QP or MP-T double pole breaker
No modification of panel required; Breakers not included

Description

Siemens standby power mechanical interlock kits provide a means to ensure that the main breaker powered by utility power within a panel is forced to the OFF position when standby power is in use. It also ensures that the standby source is forced to the OFF position when the utility power is in use. This model (ECSBPK06) is designed for use on load centers or meter combinations that will accept a QN (MD-T) frame circuit breaker next to a 2-pole circuit breaker. It's compatible with QP, QNH, and HQN utility main breaker and QP, QPH, and HQPH standby main breaker types.

The most common application for an interlock kits is when a portable generator is used to provide back up power to a building. If the utility main breaker in a panel is left in the -"ON"-position while a generator is powering the panel, dangerous back feeding of the utility power lines can occur.

ECSBPK06
The ECSBPK06 interlock kit (view larger).
ECSBPK06 panel
Use on Siemens or Murray panels (view larger).
siemens logo

ECSBPK06 Generator Standby Power Mechanical Interlock

At a Glance
  • UL listed for use in most Siemens load centers and meter combinations
  • Remains attached to the main breakers when load center cover
  • Corrosion resistant finish
  • For use on Siemens or Murray panels
  • Easy assembly requiring no modifications to the load center or meter combination
  • Suitable for use with optional standby systems in accordance with article 702 of the National Electric Code

10. MUR-200A Murray or Siemens Generator Interlock Kit 150 amp or 200 amp panels

Feature

Generator Breaker Interlock for Murray and Siemens 150 or 200 amp panels
1 1/4 spacing between main and branch breakers
Met lab listed E113887
Kit includes Interlock, labeling, drill bit and generator breaker retainer strap
PLEASE Verify panel type by checking second picture

Description

Generator Interlock Kit Fits Murray and Siemens, 150 or 200 amp panels. Spacing between main and generator breaker 1 1/4 inches Met lab listed E113887 Panel and breakers not included

Conclusion

All above are our suggestions for mechanical interlock. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using mechanical interlock with us by comment in this post. Thank you!

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