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Norton 5740-689 LEO Universal Unit Push Or Pull Side Mounting Low Energy Door Operator

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Norton’s 5740 is the latest generation of power door operators. Low energy door operators were once considered a necessity only for those with physical challenges. Today, due to the population’s busy lifestyles, the convenience of “hands-free” door opening is more popular than ever. The patented design of LEO is based on ease and simplicity. LEO installs in minutes rather than hours and consists of three basic components: inverter, motor and Norton’s 1601 closer body.

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Product Description


• Ease of installation and setup, Simple instructions
• Application versatility and ease of adjustment, Push or pull side mounting units available
• Operates as mechanical surface closer during close cycles, when door is opened manually or if power is turned off
• Quiet operation, Spring force provides the feel of a normal manual door closer, Door can be opened manually if desired
• Norton® 1601/1601BF series door closer, Adjustable Spring Power, Backcheck Valve, Sweep Valve & Latch Valve
• Non-Handed
• Unit Activation Options: Wall switches, Motion sensor
• End-User On/Off Switch
• Hold Open options, 0-30 seconds (5 seconds minimum required for ADA and ANSI/BHMA A156.19)
• Obstruction Detection, Motor stops if door is obstructed during an opening Door closes under manual spring force (not to exceed 15 lbf)
• "Push and Close" Allows the operator to skip the hold open time when it is not necessary or required, Adjustable door sensitivity
• Overload Safety Shut-Off, After two minutes of receiving a door activation signal, the inverter will time out and close the door, Prevents motor/inverter damage
• Motor Start Delay for Locking Hardware, 0-5 second delay to allow locking hardware to release first
• Finish: Aluminum 689

Electrical Data

• Power Input; 120 VAC, 60Hz or 220VAC, 60Hz
• Current Draw: .6A or .3A
• Relay Output: SPDT Normally Open/Normally Closed (jumper) For electric strike function

Mounting Applications

• 5740 UNIVERSAL UNIT - PUSH OR PULL SIDE MOUNTING - (Includes push and pull arms. Units shipped as a Rigid Arm/Slide Track; can be converted to a Double lever arm in field)

Additional Information

Additional Information

Manufacturer Norton Door Controls
Model 5740-689
Dimensions 29" W x 5-1/4" H x 4-5/8" D
Size 4 for 30"-36" Door Width
Mounting Top Jamb Pull Side, Top Jamb Push Side
Hand Non-Handed
Certifications Meets requirements for Americans with Disabilities Act (ADA)
U.L. Listed C-UL US listed for use on fire and smoke barrier doors
ANSI/BHMA ANSI/BHMA A156.19 certified, Meets ANSI/BHMA A156.4 requirements
Warranty 2 Year Warranty
Weight 30.0000


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