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Door Hardware & I/O

Door hardware and I/O components connect physical doors to your access control system. From electric strikes and magnetic locks to exit devices and relay modules, proper hardware selection ensures safe, compliant, and reliable operation.

Plan Your Deployment

Fail-safe vs fail-secure lock configuration
Door type (wood, metal, glass, storefront)
Request-to-exit (REX) device requirements
Power supply and voltage compatibility
Local life-safety and fire code compliance

Get Recommendations Control Systems

Sub categories

Electric Strikes

31 items

Magnetic Locks

27 items

Channel Output Devices

2 items

Door Relays, Isolators, Locks, & Bolts

338 items

Exit Buttons

105 items

Showing Results for Door Hardware & I/O

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STI

SKU: NT-SS200-EN

STI NoTouch® Stainless Steel Switch, US Double-Gang, Door Symbol

Contactless stainless steel switch for access control and automatic doors
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STI

SKU: NT-SS100-EN

STI NoTouch® Stainless Steel Switch, US Single-Gang, Door Symbol

Hands-free stainless steel switch with door symbol for access control
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STI

SKU: NT-SS101-EN

STI NT-SS101-EN NoTouch Stainless Steel Switch Single-Gang EXIT

Contactless stainless steel exit switch, 12VDC, IP65 rated
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STI

SKU: NT-SS101-FR

STI NT-SS101-FR NoTouch Stainless Steel Switch Single-Gang EXIT

Stainless steel contactless EXIT switch for touchless access control
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STI

SKU: NT-SS102-EN

STI NT-SS102-EN NoTouch® Stainless Steel Switch US Single-Gang

Hands-free stainless steel switch for access control, no touch required
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STI

SKU: NT-SS201-EN

STI NT-SS201-EN NoTouch Stainless Steel Switch Double-Gang EXIT

Touchless stainless steel exit switch for hands-free access control
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STI

SKU: KIT-BB0SS

STI Slim/Mullion Surface Mount Back Box for NoTouch® Stainless Stee...

Slim surface mount back box for HID readers on stainless steel doors
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$21.99

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STI

SKU: KIT-BB1SS

STI US Single Gang Surface Mount Back Box for NoTouch® Stainless St...

Stainless steel surface mount back box for NoTouch® HID readers
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$17.99

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Ubiquiti

SKU: UA-LOCK-MAGNETIC-270KG

Ubiquiti UA-LOCK-MAGNETIC-270KG Fail-Safe Magnetic Lock

270kg fail-safe magnetic lock for UniFi Access control systems
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$171.99

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Ubiquiti

SKU: UA-LOCK-MAGNETIC-540KG

Ubiquiti UA-LOCK-MAGNETIC-540KG Fail-Safe Magnetic Lock

540 kg fail-safe magnetic lock for UniFi Access control
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$228.99

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2N

SKU: 01388-001

2N Magnetic Door Contact - 01388-001

Wired magnetic door contact for 2N intercom and access control
- Real-time door open/close detection with instant security alerts
- Wired connectivity eliminates battery concerns for permanent installations
- Compact design mounts quickly on door frames with minimal tools
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Browse by Product Family

Click through to shop the families that fit your door hardware & i/o deployment.

Electric Strikes & Locking Devices

Electromagnetic and electromechanical strikes that integrate with access control panels to unlock doors on demand. Critical for fail-safe and fail-secure operation.

Magnetic Locks (Maglocks)

High-holding-force electromagnetic locks mounted on door frames for high-traffic or high-security applications. Require UPS/battery backup for code compliance.

Exit Devices & Panic Hardware

ADA and Life Safety Code-compliant push bars and exit devices that integrate with access control and door holders. Manage emergency egress while logging exits.

Relay Modules & Interface Cards

Input/output interface modules that bridge doors, sensors, and access control systems. Handle voltage conversion, surge protection, and signal conditioning.

Door Position Sensors & Switches

Magnetic and mechanical switches that report door open/close state to controllers. Essential for audit trails, alarm monitoring, and tamper detection.

Power Supplies & Backup Battery Systems

Dedicated PSUs and UPS modules for powering strikes, maglocks, and door controllers during power loss. Sized for fail-safe/fail-secure requirements.

What to Look For When Buying

The decisions that matter most before you spec.

Fail-Safe vs. Fail-Secure Wiring & Power Requirements

Choose fail-safe (locks release on power loss for emergency egress) or fail-secure (locks remain engaged) based on Life Safety Code and facility risk. Door controllers and power supplies must support both modes; backup battery sizing depends on maglock hold-force and outage duration expectations.

Integration with Access Control Panels & Door Controllers

Door hardware requires compatible control systems and relay modules that supply the correct voltage, current, and signal logic. Verify relay card output ratings (12VDC, 24VDC, 12VAC/24VAC mixed) match your strike or maglock specification before ordering.

Code Compliance: ADA, Fire & Emergency Egress

Exit devices, maglocks, and door holders must meet NFPA 101 Life Safety Code and local fire marshal requirements. Unlocking delays, electric strikes, and credential readers in egress paths all have mandated configuration limits—audit your design before deployment to avoid costly rework.

Credential Reader & Card System Compatibility

Door hardware interfaces with card readers and credentials via access control logic. Ensure reader output wiring, reader polling frequency, and door controller inputs are synchronized to avoid unlock delays or failed authentications during peak traffic.

Environmental & Durability Factors

Outdoor and humid-environment door hardware requires stainless-steel, powder-coated, or sealed enclosures to prevent corrosion. High-traffic exterior doors and loading docks need reinforced hardware rated for frequent cycling and weatherproofing—check IP ratings and material certifications.

Audit Trail & Tamper Detection Integration

Door position sensors, request-to-exit buttons, and door holders log every access event and detect forced doors or prop-open conditions. Wire these into your access hub to enable real-time alerting and forensic investigation of security incidents.

Technology Stack

The specs and acronyms that actually affect door hardware & i/o performance.

Fail-Safe / Fail-Secure Operation

Fail-safe releases locks on power loss (emergency egress); fail-secure keeps doors locked. Requires UPS backup and correct power-supply wiring. Life Safety Code mandates fail-safe on egress paths; fail-secure suitable for secure areas (server rooms, vaults) with manual override.

Maglock Holding Force (lbs)

Electromagnetic holding strength—typically 600, 1200, 1500, or 2500 lbs. Higher force resists forced entry but increases power draw and heat. Match force to door weight, traffic, and security risk; oversizing wastes power and battery budget.

Strike Voltage & Current Draw (12VDC, 24VDC, 12VAC/24VAC)

Electrical supply specs for strikes and maglocks. 12VDC pulls high current (2–5A) for magnetic locks; 24VDC or 12VAC/24VAC reduces I²R losses over long wire runs. Verify relay output and power-supply capacity before wiring.

Request-to-Exit (RtX) Button & Door Position Sensor Wiring

RtX buttons and mag switches provide hardwired signals to access control panels for unlock commands and door-open reporting. Critical for audit logging, tamper detection, and fail-safe compliance. Voltage isolation and debouncing in controller prevent false triggers.

Relay Module Output Ratings & Dry Contact / Wet Contact

Dry contacts (isolated, no power) handle low-voltage signals to readers and sensors; wet contacts (powered) drive strikes and maglocks. Mix of both types in a relay card allows flexible door-control topologies. Always verify relay contact rating matches the load.

Battery Backup Duration & UPS Sizing

Door hardware on battery backup must remain operational for 15–60 minutes (code-dependent) during power loss. Calculate total maglock + controller + reader draw, multiply by desired backup time, then select UPS capacity with 20% headroom to avoid premature battery depletion.

Typical Deployment Scenarios

Small Office (Single-Door Entry)

1 electric strike or maglock, 1 card reader, 1 door position sensor, 1 relay module, local 24VDC power supply with small UPS. Wired to a single access hub for credential validation and unlock command. Total BOM: ~5 components.

Multi-Story Building (12 Access Points)

12 magnetic locks (1200 lbs each), 12 readers, 12 door sensors, 3–4 relay modules, centralized 24VDC distribution with large UPS (2–4 kVA). Control system manages unlock sequences, stairwell egress rules, and tamper alerts. Backup runtime ~45 min.

Loading Dock / High-Traffic Area (Dual Doors)

2 heavy-duty electric strikes or delayed-egress maglocks, 2 high-speed readers, motion sensors for prop-open detection, 2 exit devices with hardware, dedicated 24VDC supply with industrial-grade UPS. Request-to-exit integration prevents door tailgating.

Server Room / Secure Enclosure (Single Hardened Door)

1 fail-secure maglock (2500 lbs) with manual override, 1 biometric or proximity reader, 1 alarm-grade door sensor wired to control system, dedicated 24VDC supply. Supports restricted credential list and triggers audit alert on every access.

Top Brands for Door Hardware & I/O

Click through to each brand for engineering profile and NDAA compliance status.

HES

Authorized dealer · browse the full HES catalog for this category

Frequently Asked Questions

What power supply do I need for a magnetic lock?

Size your 24VDC supply based on maglock draw (typically 2–5A per lock) plus reader and controller loads. For fail-safe compliance on egress doors, add UPS capacity to keep locks powered for 15–60 minutes during outage. Oversizing by 20–30% prevents thermal stress and extends supply lifespan.

Can I use a 12VDC power supply instead of 24VDC?

12VDC works but requires thicker wire to handle higher current (I²R losses increase dramatically over distance). 24VDC is preferred for runs beyond 50 feet. Verify your relay module and maglock are rated for 12VDC before switching; many access-control products default to 24VDC.

How do I wire a door position sensor for tamper detection?

Connect the magnetic switch (normally-closed) in series with a relay input on your access hub. When the door opens, the switch breaks the circuit and triggers an input alarm. This logs every open event and alerts you to prop-open or forced-door conditions in real time.

What's the difference between fail-safe and fail-secure, and which should I choose?

Fail-safe unlocks on power loss (Life Safety Code requirement for egress paths—stairwells, exits). Fail-secure stays locked during outage (use for secure areas like server rooms or vaults). Your door location and local fire code determine the requirement; consult your AHJ before specifying hardware.

Do I need separate power supplies for strikes and maglocks, or can they share one?

One centralized 24VDC supply can power multiple locks if sized for total current draw. However, separate supplies per zone improve reliability and allow zone-level UPS backup. For critical doors (emergency exits, server rooms), dedicated UPS per lock ensures compliance and uptime.

How do relay modules improve door-control wiring?

Relay modules isolate low-voltage reader signals from high-current strike/maglock circuits, provide voltage conversion (e.g., 5V reader output to 24VDC strike input), and add surge protection. They centralize wiring logic and reduce cross-talk between access-control circuits. Essential for any system with more than 2–3 doors.

Related Categories

Adjacent equipment that typically ships alongside these products.

Door Locks & Strikes Door Controllers Control Systems Card Readers Access Hubs & Controllers Access Cards & Credentials Credentials

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