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PDQ 81310-4 Key Switch Narrow
8100 Series Key Switch and Push Button
PDQ 8100 Series key switches and push buttons are electrified accessories for controlling access at an opening. Key switches restrict access to key holders, while push buttons are commonly used on ADA openings with an automatic operator.
The series includes a key switch with lights, a narrow key switch, a push button switch, a narrow push button switch and a mushroom push button, each offered in maintained or momentary action.
Key Features
- Maintained or momentary action on every model
- Key switch with lights, or narrow key switch
- Standard, narrow and mushroom push button styles
- Electrified accessory for PDQ access control openings
Technical Specifications
- Manufacturer Part Number: 81310-4
Available Options
- Switch Action: Maintained, Momentary
Each configuration has its own PDQ part number, for example 813104MT.
Typical Applications
- Openings where access is restricted to key holders (key switches)
- ADA openings with an automatic operator (push buttons)
Manufacturer Resources
Product Specs
- Department:
- Door Hardware
- Product Group:
- Electrified Hardware
- Product Subgroup:
- Switches
- Product Type:
- Switch
- Product Category:
- Electrified Hardware
- Product Model:
- 81310-4
- Commercial/Residential:
- Commercial
- Tags:
- pdq 81310-4, 81310-4 pdq, 81310-4
- Subcategory:
- Electrified Hardware
PDQ 813104MM – Frequently Asked Questions
1) What is the difference between maintained and momentary action on the PDQ 81310-4 key switch?
The 81310-4 narrow key switch is ordered either way. Momentary (part 813104MM) closes the circuit only while the key is turned and springs back, which is what you want to release a door or trigger an auto operator for one pass. Maintained (part 813104MT) holds the position until the key is turned back, so it latches a state, like holding an opening unlocked for business hours. Pick the action before ordering, it is the only option on the switch.
2) Should I use a key switch or a push button for an ADA opening with an automatic door operator?
Use a push button. In the PDQ 8100 Series the push buttons (standard, narrow, and mushroom styles) are the models intended for ADA openings with an automatic operator, since anyone can press them. The 81310-4 narrow key switch is the opposite case: it restricts actuation to key holders, so it belongs on an opening you do not want the public operating.
3) What is the difference between the PDQ narrow key switch and the key switch with lights?
Both are 8100 Series key switches and both come in maintained or momentary action. The 81310-4 is the narrow version, a slimmer plate for tight mounting locations such as a narrow stile or a cramped jamb. The key switch with lights is the other 8100 Series key switch model and adds indicator lighting, useful when an attendant needs to see the state of the opening from across a lobby. If you need visual status, the narrow switch is not the one to order.
4) What PDQ part number do I order for a narrow key switch with momentary action?
Order 813104MM for momentary. The maintained version is 813104MT. Both are configurations of the PDQ 81310-4 narrow key switch, and the MM/MT suffix is what distinguishes them on a purchase order.
5) Can I use a PDQ 81310-4 key switch to let staff unlock a door without giving out keys to the lock?
That is the intended use. The narrow key switch puts control of the opening in a separate keyed switch, so only key holders can actuate the electrified hardware, and the door lock itself is untouched. For a door that needs to stay released for a stretch of time, order the maintained version (813104MT); for a single release, order momentary (813104MM).
6) Is the PDQ 81310-4 rated for commercial use?
Yes, the 81310-4 narrow key switch is a commercial door hardware item, an electrified accessory for controlling access at an opening rather than a residential device.
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Does the PDQ 813104MM come with a warranty?
Absolutely. The PDQ 813104MM is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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