Alarm Controls MCK-6 Series - Mortise Cylinder Single Gang Station with Red/Green LEDs
**Mortise Cylinders not included**
Features
Standard Features
- Stainless steel wall plate accepts standard 1-1/8” mortise cylinder
- Tamper-proof and slotted-head screws included
- Mortise Cylinders not included, available separately (CY-1, CY-1A)
Options
- Momentary or alternate switch, see model chart
- SPDT or DPDT, see model chart
- No LED, green LED, green and red LEDs, see model chart.
- Pneumatic time delay: 2 to 45 seconds, see model chart.
- Add WP for weather resistant cover and surface mount box. Available for
single gang models only.
Specifications
Electrical
- Contacts rated 4A at 28 VDC
- LEDs operate on 12 or 24 VDC/VAC
- Switch depth behind plate: 1-1/4”
- Switches terminatedin colored leads
Operating Temperature
- +15 to 120F
Manufacturer Resources
Product Specs
- Series:
- MCK-6
- Subcategory:
- Mortise Cylinder Station
- Commercial/Residential:
- Commercial
- Product Type:
- Mortise Cylinder Stations
- Product Group:
- Electronic Access Controls
- Product Subgroup:
- Sensors, Switches, Relays and Timers
- Product Finish:
- Satin Stainless Steel
- Product Category:
- Electronic Access Controls
- Department:
- Door Hardware
Alarm Controls MCK-6-5 – Frequently Asked Questions
1) Does the Alarm Controls MCK-6 station come with the mortise cylinder?
No. The MCK-6 mortise cylinder station ships as the stainless steel wall plate and switch only. The cylinder is ordered separately, and Alarm Controls lists the CY-1 and CY-1A as the matching cylinders. The plate is cut for a standard 1-1/8 inch mortise cylinder, so if you already keep a keyway standard in the building you can supply your own cylinder in that size and key it into the existing system. Tamper-proof and slotted-head screws are in the box.
2) How deep does the MCK-6 key switch need behind the wall plate?
Switch depth behind the plate is 1-1/4 inches on the MCK-6. That is the clearance you need inside a single gang box or in the wall cavity behind it. Anything shallower than a standard single gang box depth and the switch body will not seat.
3) Momentary or alternate action on a key switch for a door release, which do I want?
Momentary is the one for a door release. On the MCK-6, momentary action transfers the contacts only while the key is turned and drops back the instant you let go, which is what an electric strike or mag lock release wants. Alternate action latches, so the contacts stay transferred until the key is turned again. Use alternate for something you want to hold in a state: shunting an alarm zone, disabling a device, putting a mag lock into free access for a delivery window. If neither fits, the MCK-6 also comes with a pneumatic time delay switch that holds the release from 2 to 45 seconds after the key is turned, adjustable, which is how you get an unlock long enough to walk through without a separate timer module.
4) Can the MCK-6 key switch handle the current of my electric strike?
Contacts on the MCK-6 are rated 4 amps at 28 VDC. That covers most 12 or 24 VDC electric strikes and mag locks switched directly. If your lock draws more than that, or you are switching AC line voltage, run the station into a relay or the access control panel and let that carry the load instead of the switch contacts.
5) Can I mount an MCK-6 key station outside on an exterior wall?
Only with the WP option. Ordered that way the MCK-6 comes with a weather resistant cover and a surface mount box, which is what makes it suitable outside or in a wash-down or parking area. Without WP it is an interior flush device in a single gang box. Watch the temperature range either way: the station is rated +15 to 120F, so an unheated exterior location in a cold climate can drop below what it is rated for.
6) Can I key the MCK-6 station into the building's existing master key system?
Yes, within the limits of the cylinder. The MCK-6 plate takes a standard 1-1/8 inch mortise cylinder, and since no cylinder ships with it, you supply one in your building keyway and have it keyed or master keyed like any other opening. Alarm Controls offers the CY-1 and CY-1A if you do not need to match an existing system. This is the practical reason property managers pick a mortise cylinder station over a proprietary key switch: the key is the same one already on the maintenance ring.
7) What do I need to order besides the MCK-6 to get a working key release?
Three things beyond the station. First, a 1-1/8 inch mortise cylinder, since none is included, keyed to your system or an Alarm Controls CY-1 or CY-1A. Second, a single gang box, unless you take the WP option which brings its own surface mount box. Third, the power and the lock itself: the contacts switch 4A at 28 VDC and the LEDs want 12 or 24 VDC or VAC. Mounting screws come with the station, both tamper-proof and slotted, and the switch is terminated in colored leads so you are splicing rather than landing on terminals.
8) SPDT or DPDT on the MCK-6 key station, what is the difference in practice?
SPDT gives you one set of transfer contacts, which is all you need to release a single strike or drop a single mag lock. DPDT gives you two independent sets on the same key turn. Take the DPDT when the one key action has to do two things at once: release the lock and shunt the door contact so the alarm does not trip, or release the lock and signal the access panel or an aux input. Both switch types on the MCK-6 are offered in momentary and alternate action.
9) What voltage do the red and green LEDs on the Alarm Controls MCK-6 run on?
The LEDs on the MCK-6 operate on 12 or 24 VDC or VAC, so they run off the same power you are already pulling for the strike or the panel without a separate supply. Two LEDs, red and green, which is what lets you show a state rather than just a momentary blip: green for released or armed-off, red for secure. The LEDs are driven separately from the switch contacts, so you wire them from whatever source reflects the condition you want annunciated.
10) Will the MCK-6 fit a standard single gang electrical box?
Yes, the MCK-6 is a single gang station and mounts to a standard single gang box with the stainless steel plate covering it. Allow 1-1/4 inches of depth behind the plate for the switch body. If you order the WP weather resistant version you do not need a box in the wall at all, since that option ships with its own surface mount box.
11) Can I get a timed unlock from the MCK-6 without adding a separate timer relay?
Yes. One of the MCK-6 switch options is a pneumatic time delay adjustable from 2 to 45 seconds, so a key turn holds the release for the set interval and then drops out on its own. That covers the common case of unlocking a door long enough for someone to get through, or holding a gate release, without a timer module or a panel output. If you need a hold longer than 45 seconds, use the alternate action version and turn the key back when you are done.
12) Will an Alarm Controls key station hold up in a high-traffic public corridor?
The MCK-6 plate is stainless steel in a satin stainless finish, and it ships with tamper-proof screws as well as standard slotted heads, so it can be secured against casual removal in a lobby, corridor or garage entry. Since the release requires a key in a mortise cylinder rather than a push button, there is nothing for the public to operate. For an exterior or exposed location add the WP weather resistant cover.
13) Is the MCK-6 key station rated for commercial use?
The MCK-6 is a commercial-duty device, built as a stainless steel single gang plate with a mortise cylinder switch and rated for +15 to 120F operating temperature. It is the type of station used on commercial access control: electric strike release, mag lock control, alarm shunt, elevator and gate control. The weather resistant WP option extends it to exterior and unconditioned locations.
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Does the Alarm Controls MCK-6-5 come with a warranty?
Absolutely. The Alarm Controls MCK-6-5 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
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