What This Article Covers and Who It Helps
A bundled magnetic lock kit that includes a 1,200-pound lock body, weatherproof keypad, power supply, and push button looks like a complete solution on the product page. For contractors, facility managers, and security integrators working on office entries, school vestibules, and light industrial access points, these kits are an attractive shortcut. But the egress compliance questions surrounding electromagnetic locks are rarely answered by the kit itself — and they almost always surface after the hardware is already on order or already mounted. This article walks through the compliance checkpoints that need to happen before the kit ships, not after the inspector arrives.
What a Magnetic Lock Kit Actually Includes
A magnetic lock kit, sometimes called a maglock access control kit, bundles the core components of a single-door electromagnetic locking system into one purchase: the lock body (rated at 600 or 1,200 pounds of holding force), an armature plate that mounts to the door face, a power supply, a keypad for credential-based entry, and a push-button Request to Exit (REX) device for the egress side. Weatherproof keypads are specified when the entry is exposed to rain, humidity, or temperature swings — exterior vestibules, covered walkways, and loading dock entries are common examples.
What the kit does not include is any built-in judgment about whether the door it is going on meets the code conditions for an electromagnetically locked egress door. That determination belongs to the specifier, the installer, or the authority having jurisdiction (AHJ) — and it has to happen before the opening is wired.
The Three Egress Release Conditions That All Have to Work
Under IBC Section 1010.1.9.7 and NFPA 101 Section 7.2.1.6.2, an electromagnetically locked egress door must release under three independent conditions. All three must function correctly for the opening to pass inspection:
- Fire alarm activation: Power to the lock must drop when the building fire alarm system activates. This requires a hard-wired interface between the access control power supply and the fire alarm panel. The kit does not wire itself to the fire alarm; that connection is a field decision that must be scoped into the electrical or low-voltage work before the door goes in.
- Loss of power to the lock: Electromagnetic locks are fail-safe by design — when power is removed, the lock releases and the door opens freely. This is the correct fail-state for egress doors. It is worth confirming with the facility manager that the power supply circuit is not on an emergency backup circuit that would keep the lock energized during a fire alarm event.
- Actuation of a listed sensor or manual release: The push-button REX device included in most kits satisfies the manual release requirement when it is correctly placed. IBC language calls for a sensor that, when approached by an exiting occupant, unlocks the door. The push button approach is common and acceptable, but placement matters: it must be mounted in a location that is obvious, operable with one hand, and labeled. Some AHJs also require a motion-sensing PIR REX in addition to or in place of a push button on high-traffic doors.
All three of these conditions exist in the code independently. Satisfying one does not substitute for the others. The most common inspection failure on maglock kits is a missing or improperly wired fire alarm interface — the lock releases fine from the keypad and the push button, but nobody connected the power supply to the fire alarm panel.
Where the Weatherproof Keypad Creates a Separate Problem
A weatherproof keypad is the right call for any entry that sees direct weather exposure or high humidity. What the weatherproof designation describes is the housing protection rating of the device — it does not change the wiring or egress logic in any way. The issue that comes up in the field is conduit routing.
On exterior entries, the low-voltage wiring run from the keypad to the power supply and from the push button back through the door frame often has to navigate through finished masonry, precast panels, or hollow metal frames that were not originally prepped for electrified hardware. When the frame is a standard hollow metal frame without a factory wire chase, the installer has to plan the conduit path before the frame is set or accept surface-mounted conduit after the fact. On school campuses and healthcare facilities, surface conduit on a main entry is rarely acceptable to the architect or facilities director after the fact.
If the door frame is being ordered new, confirm with the frame supplier that wire chase prep is included. Curries, Ceco, and other hollow metal manufacturers offer factory-prepped frames for electrified openings. If the frame is existing, measure the conduit path and decide on the routing method before the kit is on a truck.
Occupancy Type Changes What You Need From the Kit
Not every occupancy is permitted to use an electromagnetically locked egress door in the same way. The IBC limits electromagnetic lock use on egress doors to specific occupancy groups: A, B, E, I-1, I-2, I-4, M, R-1, and R-2. Assembly spaces with occupant loads above 49 persons require panic hardware regardless of the locking method. If panic hardware is already required on the door, the maglock release must be integrated with it — a separate push button alone is not sufficient in those cases.
- School vestibules (E occupancy): Commonly use 1,200-pound maglocks on the main entry with keypad ingress and push-button egress. The fire alarm interface is mandatory and is frequently the item that gets missed on school renovations.
- Healthcare entries (I-2 occupancy): Staff access doors and secure-unit entries often use maglocks with sensor-based egress release. The sensor placement and sensitivity need to be confirmed against the specific edition of NFPA 101 adopted by the AHJ.
- Retail and office (M and B occupancy): Tenant entry doors and after-hours access control are common applications. If the door is a required egress door and serves more than 49 occupants, panic hardware requirements apply and the maglock spec changes.
- Industrial and warehouse: Loading dock entries and personnel doors in industrial buildings frequently use maglocks with weatherproof keypads because of the environment. The same egress rules apply — industrial occupancy does not create an exemption.
The Power Supply Spec Is Not a Default Decision
Bundled kits ship with a power supply sized for the included lock. The field question is whether that power supply is the right choice for the broader installation. If the opening is one of several access-controlled doors in a new system, a centralized power supply with multiple outputs may be more appropriate than one dedicated transformer per door. If the power supply is in a location subject to ambient temperature extremes (a non-conditioned mechanical room or an exterior enclosure), the operating temperature range of the supply should be confirmed before mounting.
Power supplies in maglock kits are typically rated for the lock they ship with, but they are not always listed under UL 294 as a complete access control unit system. If the AHJ requires a UL 294 listing on the complete system, confirm the listing status of the kit before spec closeout.
Preferred Hardware Lines for Magnetic Lock Applications
When specifying individual components or upgrading a bundled kit, magnetic lock bodies and access control hardware from lines with stable product histories reduce the risk of part-level obsolescence during the system's service life. For the lock body itself, brands such as Securitron offer well-documented maglock families with clear replacement part availability. For the access control and power supply components, working with a distributor who can cross-reference compatible devices from Alarm Controls and comparable manufacturers helps ensure the full system stays serviceable without forced replacement cycles.
DoorwaysPlus carries magnetic lock kits and individual components across holding force ratings and environmental specifications. If the bundled kit does not match the exact egress condition or occupancy requirement on your project, the team can help identify the right configuration before the opening is committed.
What to Confirm Before the Kit Ships
- Is the door on a required egress path, and does the occupancy permit electromagnetic locking on that opening?
- Is panic hardware required? If yes, the maglock release must integrate with the panic device, not rely on a push button alone.
- Is the fire alarm interface scoped into the electrical or low-voltage work, and who is responsible for that connection?
- Is the frame prepped for a wire chase, or does conduit routing need to be planned before install?
- Does the power supply mounting location fall within the rated operating temperature range?
- Has the complete system been confirmed for UL 294 listing if the AHJ requires it?
Answering these questions before the kit ships is faster than answering them during a failed inspection. The hardware itself is straightforward; the compliance context around it is where projects run into delays.