Locknetics MG Series 600lb/1200lb Model Electromagnetic Lock, Standard/Monitored, 12/24VDC

No. The MG Series is fail-safe, so the magnet releases and the door unlocks the moment power drops. That is how maglocks are meant to work on an egress door, but it means you need to plan for it: if the opening has to stay secured through an outage, back the lock with a battery-backed power supply, or use a mechanical fail-secure lock instead. It also means the MG cannot be the only thing holding a door you need locked during a fire alarm shutdown.

Both holding forces are offered in the MG Series, so the call is about the door and the traffic. 600 lb suits interior openings with light to moderate use, such as an office suite, a stairwell door in a low-traffic area, or a storeroom. 1200 lb is the choice for a main entry, a heavier or wider leaf, or any door people pull hard on. If you are standardizing across a building, ordering everything at 1200 lb keeps one part number in the stockroom.

Indoor use only. The MG Series is not built for weather exposure, so an exterior opening, an unheated vestibule, or a gate is out of scope for it. For an outdoor or weather-exposed door, look at a weather-resistant maglock such as the Alarm Controls 1200WP Series or the Dortronics 1000 Series, which is built with sealed electronics for weather-resistant duty.

Two things a card access or alarm system can actually use. The monitored model carries a door status sensor with an S.P.D.T. switch, so the panel knows whether the leaf is open or closed rather than just whether the magnet is energized. It also adds a relock timer adjustable from 0 to 90 seconds, which holds the door unlocked after a valid credential or a request-to-exit so someone pushing a cart is not fighting the magnet. If your head end has a door position input to wire, order Monitored. On a standalone opening with a simple push-to-exit button and no monitoring, the Standard model does the job.

Dual voltage, field usable at either 12 VDC drawing 0.5 A or 24 VDC drawing 0.25 A. Size the supply from that: at 12 VDC a 2 A power supply carries four MG locks, while the same supply at 24 VDC carries eight. Running 24 VDC is the better choice on long cable pulls because the lower current means less voltage drop over the run.

The MG Series is UL10C listed and UL294 listed. UL10C is the positive pressure fire door test standard, and UL294 is the access control system units standard, so the lock is listed for use on a fire rated opening and as an access control device. Release still has to be tied into the fire alarm so the magnet drops on alarm, which the fail-safe design supports.

No. The MG Series relock timer is a 0 to 90 second delay before the lock re-energizes after a release, which is not the same thing as delayed egress, where the door holds for a set period after someone pushes on it. For a true delayed egress opening, the Alarm Controls 1200DE Series is the single door delayed egress maglock, and the DynaLock 2101 Series is an early warning lock. Do not substitute the MG on a spec calling for delayed egress.

The Locknetics MG Series is specified for indoor use only, so a gate, loading dock, or exposed exterior opening calls for a weather-rated magnet instead. Alarm Controls 1200WP Series is a weather resistant magnetic lock family. The Dortronics 1000 Series industrial magnetic lock is weather resistant with sealed electronics and runs 12/24VDC field selectable, so it keeps the same dual voltage supply you would have run for the MG Series while adding the sealed enclosure. Choosing one of these avoids condensation and moisture reaching the coil on an unconditioned opening.

For a tight stop, the Dortronics 1107 is a narrow 2 inch slim line 600 lb single door mag lock in the 1100 Series, which gives the same 600 lb holding class as the Locknetics MG Series 600lb model in a 2 inch wide body. The MG Series is described as a slim profile surface mount magnet as well, so on many aluminum and hollow metal frames it will land, but where the stop measures under the housing width the 1107 is the narrower body. Measure the flat of the stop before ordering either.

No. The MG Series Monitored model provides a door status sensor SPDT switch to report open or closed plus a timer for a 0 to 90 second relocking delay, which is status reporting and relock timing, not a delayed egress function. For a code-recognized delayed egress opening, the Alarm Controls 1200DE Series is a delayed egress magnetic lock for a single door, and the DynaLock 2101 Series is a 1200 lb early warning lock. Those carry the irreversible timed release and local alarm behavior a delayed egress specification is asking for.

The Dorma EML310 DP 628 single door magnet at 1500 lb and the Dorma EML320 628 double door magnet at 1500 lb both carry a fire rating. The Locknetics MG Series is UL10C listed and UL294 listed, UL10C being the fire door test standard and UL294 the access control system unit standard, so it is the pairing an inspector looks for on an access-controlled egress door. On any fire rated opening, confirm the magnet is released by the fire alarm interface as well as by the request to exit.

Surface mount, which means the magnet body goes on the frame header and the armature on the door face, with no mortising into the frame. Locknetics builds the MG in both single and double magnet versions, so a pair of doors is covered by a double unit spanning the header above both leaves. Surface mounting is what makes it a retrofit-friendly choice on an existing frame, since you are drilling and running wire rather than cutting a pocket.

A surface mount magnet needs header depth and a flat armature landing on the door face, which a narrow aluminum stile or a sliding leaf often will not give you. For a slim narrow stile opening, the Dortronics 1107 is a narrow 2 inch slim line 600 lb single door maglock. For a sliding door, the Schlage Electronics 320M is a compact mortise sliding door electromagnetic lock at 1500 lb holding force. Both solve geometry the MG surface body was not shaped for.

Commercial rated, and it is a hardwired device rather than a battery lock. The MG draws 12 VDC at 0.5 A or 24 VDC at 0.25 A continuously while locked, so every opening needs a wire run back to an access control power supply. If you are pricing a multi-door retrofit, budget the power supply, the fire alarm interface, and the request-to-exit device alongside the locks, because none of that is part of the magnet itself.

They solve a different opening. The ROFU 8031-002 is a shear lock at 2200 lb holding force, 12/24VDC, monitored, and a shear lock mortises into the head of the frame and door so nothing shows when the door is closed. The Schlage Electronics 320M is a compact mortise sliding door electromagnetic lock at 1500 lb holding force, heavy duty, intended for a sliding leaf. Both require concealed prep cut into the door and frame. The Locknetics MG Series is a surface mount magnet, so it attaches to existing frame and door faces with no mortising, which is why it is not a like-for-like swap with either of those.

Bond sensing confirms the magnet is actually holding, which is a different signal from the door being closed. The Dorma EML310 BA DP 628 is a single door electromagnetic lock at 1500 lb with both Bond Alert and a door position sensor, and it is electrically locked fail safe. The Schlage M390RFK carries a magnetic bond sensor along with a door status monitor. The Locknetics MG Series Monitored model provides the door status SPDT switch and relock timer, so on an access control head end that wants a bond signal, one of those bond-equipped magnets is the fit.

Yes. The Schlage M420 in the M400 Series is a single door electromagnetic lock at 500 lbs holding force, a step below the Locknetics MG Series 600lb model, and suits an interior door where the magnet only needs to hold a latch-free leaf against casual push. Where the opening sees public traffic or is on a perimeter or stair, the MG Series 1200lb model doubles the holding class. Both are commercial electric magnets, so either still needs a continuous 12 or 24 VDC supply and a release device on the egress side.

Magnetic locks as a class are fail safe. The Locknetics MG Series is fail safe, and the Dorma EML310 and EML320 magnets are listed as electrically locked, fail safe. That means power loss releases the door on every one of them, and no magnet in this class should be quoted against a fail secure line on a drawing. If a facility genuinely requires the opening to stay secured without power, the answer is a mechanical latching electrified lock, not a substitute magnet.

630, satin stainless steel, also called US32D. That is the standard commercial finish, so the MG body will match satin stainless exit devices, push plates, and pulls already hanging in most commercial buildings. There is no other finish choice to specify on the MG, which simplifies the order to holding force and Standard versus Monitored.

The MG Series itself is not an ADA compliant device. The magnet holds the door and nothing more, so accessibility on that opening comes from what you pair with it, an automatic operator, an accessible actuator, and release hardware placed and operated within reach. If the opening is on an accessible route, plan the operator and actuators as part of the job rather than expecting the lock to carry it.