Seco-Larm SD-991A-D1Q Mini No-Cut Electric Door Strike

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New $66.57

Management number	205065279	Release Date	2025/10/16	List Price	$33.29	Model Number	205065279
Category	Intercom Systems Door Hardware

Converts cylindrical lock sets into an electronic access-controlled locking system
Fail-secure operation – Door remains locked if power to the strike is lost
2-wire installation, non-polarized connection
Stainless steel keeper for strength and long life
Includes Stainless Steel No-Cut and Silver-Colored Aluminum Low-Cut* Strike Plates
Can be used with virtually any cylindrical door locking system
Can be used with an optional digital keypad, pushbutton switch, and other entry devices.
Suitable for office-type applications
Reversible non-handed design fits either right-hand or left-hand doors
Shallow design for use with most metal doors
Powered by a solenoid, not a buzzer coil
For indoor use
Optional Bronze-Colored Aluminum Low-Cut* Strike Plate (SD-991RA-61Q/B) available:

*Fits most metal or wood doors with minimum cutting of door frame beyond the hole for the strike

Specifications

Operating Voltage	12VDC
Current Draw	280mA@12VDC
Latch Throw	1/2″ (13mm)
Static Strength	1,000-lb (454kg)
Endurance	250,000 Cycles (Factory tested)
Operating Temperature	14°~120° F (-10°~49° C)
Operating Humidity	0~85% (Non-condensing)
Dimensions	Stainless Steel No-Cut Plate: 2-3/4″x1-1/8″x15/16″ (70x28x24 mm)

Troubleshooting

Electric strike does not activate

Unmount the strike and check that the two wires are connected properly
Ensure the wires are connected to a 12VDC source
Use a multimeter to test that the strike is receiving the proper voltage and amperage. If it is not, it may be necessary to use heavier gauge wires, or increase the output of the power supply
Make sure the activation device (keypad, pushbutton switch, etc.) is working properly

Door does not open when the electric strike
is activated

Check that the door latch is operating properly and replace if necessary
The position of the electric strike may need to be adjusted by moving it or adding washers or shims