Built To Last

High quality materials combined with a strong and resistant design ensure a long service life.

The LiftMaster SUB300K is a 230v double underground gate opener kit, part of the LiftMaster SUB series. Motors in this kit support gates that are up to 4.0m in length, with a smaller gate length (2.5m) it allows for support of a gate up to 600kg in weight.

Ideal for residential areas thanks to ultra-quiet, maintenance-free operation.

Downloadable Materials:

SUB300M 230v Motor Manual (.pdf)

CB11 Control Board Manual (.pdf)

CB11 Control Board Simplified Setup (.pdf)

Smart Solutions:

• Powerful performance thanks to underground drive system
• Installed under the gate, set in secrecy, great for installations that don't affect the aesthetic of a stylish gate
• Smooth operation thanks to soft-start / soft-stop technology, resulting in no harsh banging / clattering of gates
• Can be partially opened with the pedestrian mode for times when full opening is not required
• Includes built-in stops - no ground stops needed.
• Stainless steel upgrade available if the galvanised boxes don't take your fancy (contact us for more information by clicking here)

Reliable and Quiet:

• Extremely quiet AC motor eliminates noise and vibrations to provide smooth operation
• Made from high quality materials, providing a long service life
• Clean and maintenance-free electro-mechanical motors ensure less hassle
• Strong and resistant design

Safe and Secure:

• Timer-to-close function to automatically closes the gate after a preset amount of time
• Rolling code radio (security+) transmits a new code with every click of the remote
• 8.2K safety circuit input for connection of safety edges
• Separate force setting per gate wing
• Ideal for gates in residential areas

What's Included:

• 2 x SUB300M electro-mechanical underground gate motor (230v)
• 2 x SUB300B zinc coated, rust-resistant foundation box
• 2 x SUB-110 110° opening gate arm with stops and release keys
• 1 x CB11 control panel
  • Radio Board: 801221
• 2 x TX4UNIS 433 MHz, 2 channel remote controls
• 1 x 772E pair of adjustable failsafe photocells