Door Relays, Isolators, Locks, & Bolts
Showing Results for Door Relays, Isolators, Locks, & Bolts
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Add to Cart The item has been addedHikvision
SKU: DS-K4H250S
Hikvision DS-K4H250S Single-Door Electromagnetic Lock Controller
Single-door electromagnetic lock controller, 272 kg holding force
- 272 kg linear thrust secures wooden, metal, glass, and fireproof doors
- Dual voltage operation (12 VDC/500 mA or 24 VDC/250 mA) field-selectable
- NO/NC dry contact relay outputs (3A max) integrate with access control systems
In stock · Ships same business day$157.00 $112.99 Save $44.01The item has been added -
2N
SKU: 01976-001
2N IP Force High-Security Door Unit Bundle - 01976-001
Wired IP bundle adds tamper detection and electromagnetic lock control to 2N IP Force
- Tamper switch alerts on unauthorized access attempts in real-time
- Security relay manages electromagnetic locking through integrated access protocols
- I/O module integrates with third-party alarm and access control systems
$139.00 $133.99 Save $5.01The item has been added -
Hikvision
SKU: DS-K4H250D
Hikvision DS-K4H250D Double-Door Magnetic Lock
Dual-door magnetic lock with 272 kg holding force per door
- 272 kg (599.8 lbs) holding force per door handles wood, glass, metal, or fireproof doors
- Fail-safe design auto-unlocks on power loss; dry contact output for system integration
- Operates on 12 VDC/500 mA or 24 VDC/250 mA; LED indicators show lock status
$267.00 $230.99 Save $36.01The item has been added -
![Camden 1/2\" Filler Plate for 1 200 lb.](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40127/341690/product-40127-CX-MA1214-12-BK-restore0__42638.1778855265.jpg?c=2 "Camden 1/2\\" Filler Plate for 1 200 lb.")
Camden
SKU: CX-MA1214-12-BK
Camden 1/2\" Filler Plate for 1 200 lb. - CX-MA1214-12-BK
- Bridges door frame gaps to maintain armature alignment on 1,200 lb magnetic locks.
- Black stainless steel finish integrates cleanly with modern hollow-metal and wood frames.
- Compatible with CX-91 series locks; does not affect field-selectable 12/24 VDC operation.
$37.99The item has been added -
![Camden 1/2\" Filler Plate for Double Door 1 200](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40128/340561/product-40128-CX-MA1214-12D-restore0__23550.1778855244.jpg?c=2 "Camden 1/2\\" Filler Plate for Double Door 1 200")
Camden
SKU: CX-MA1214-12D
Camden 1/2\" Filler Plate for Double Door 1 200 - CX-MA1214-12D
- Standardizes door-to-strike spacing in double door magnetic lock installations.
- Supports 1,200 lb magnetic lock systems operating at 24VDC for reliable hold.
- Includes door status switch, enabling immediate monitoring integration on deployment.
$88.99The item has been added -
![Camden 3/8\" Filler Plate for 600 lb. Magnetic](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40115/350218/product-40115-CX-MA0614-38-restore0__14134.1778855264.jpg?c=2 "Camden 3/8\\" Filler Plate for 600 lb. Magnetic")
Camden
SKU: CX-MA0614-38
Camden 3/8\" Filler Plate for 600 lb. Magnetic - CX-MA0614-38
- Bridges frame-depth gaps with a fixed 3/8" offset to restore full 600 lb. holding force.
- Installs using the existing strike fastener pattern — no additional drilling or hardware required.
- Compatible with all surface-mount and mortise-mount variants in the Camden 600 lb. 24VDC series.
$34.99The item has been added -
![Camden 3/8\" Filler Plate for Double Door 1 200](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40132/347836/product-40132-CX-MA1214-38D-restore0__88447.1778855239.jpg?c=2 "Camden 3/8\\" Filler Plate for Double Door 1 200")
Camden
SKU: CX-MA1214-38D
Camden 3/8\" Filler Plate for Double Door 1 200 - CX-MA1214-38D
- Bridges frame-to-armature gaps on double doors, preserving full 1,200 lb holding force.
- Designed for 24VDC magnetic lock installations with Camden CX-91 series hardware.
- Mechanical fastening required; eliminates partial engagement caused by frame geometry offsets.
$73.99The item has been added -
![Camden 5/8\" Filler Plate for 1 200 lb. Magnetic](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40133/346563/product-40133-CX-MA1214-58-restore0__75742.1778855265.jpg?c=2 "Camden 5/8\\" Filler Plate for 1 200 lb. Magnetic")
Camden
SKU: CX-MA1214-58
Camden 5/8\" Filler Plate for 1 200 lb. Magnetic - CX-MA1214-58
- Bridges 5/8" frame gaps to ensure full armature contact on 1200 lb mag locks.
- Designed for Camden CX-91 series 24VDC magnetic locks; no electrical changes required.
- Prevents reduced holding force caused by strike misalignment during frame installation.
$40.99The item has been added -
![Camden 5/8\" Filler Plate for 600 lb. Magnetic](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/40117/340690/product-40117-CX-MA0614-58-BK-restore0__13868.1778855231.jpg?c=2 "Camden 5/8\\" Filler Plate for 600 lb. Magnetic")
Camden
SKU: CX-MA0614-58-BK
Camden 5/8\" Filler Plate for 600 lb. Magnetic - CX-MA0614-58-BK
- 5/8 inch filler plate shims uneven frames for 600 lb mag lock fit
- Eliminates door alignment problems from out-of-plumb frames
- Black anodized finish matches Camden 600 lb mag lock hardware
$38.99The item has been added -
![Camden Aluminum endcaps 18\" length (Formerly - CM-PT250AL-18](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/39901/403817/CM-PT250AL-18__82711.1779413637.jpg?c=2 "Camden Aluminum endcaps 18\\" length (Formerly - CM-PT250AL-18")
Add to Cart The item has been addedCamden
SKU: CM-PT250AL-18
Camden Aluminum endcaps 18\" length (Formerly - CM-PT250AL-18
- Aluminum construction resists corrosion for reliable indoor access control deployments.
- 1/4" ID bore mates precisely with compatible power transfer cable, preventing separation.
- Pre-matched 18" length eliminates field cutting for standard single-door cable runs.
In stock · Ships same business day$40.00 $26.99 Save $13.01The item has been added -
![Camden Aluminum endcaps 18\" length (Formerly](https://cdn11.bigcommerce.com/s-j1idkp65fd/images/stencil/300x300/products/39909/357038/product-39909-CM-PT375AL-18-restore0__93962.1778855201.jpg?c=2 "Camden Aluminum endcaps 18\\" length (Formerly")
Add to Cart The item has been addedCamden
SKU: CM-PT375AL-18
Camden Aluminum endcaps 18\" length (Formerly - CM-PT375AL-18
- Aluminum body resists corrosion indoors and outdoors, no coatings required.
- 3/8" ID fits up to 16x 22-AWG or 8x 18-AWG conductors for multi-zone wiring.
- 18" length eliminates excess cable coil in tight door-frame or pilaster spaces.
In stock · Ships same business day$45.00 $29.99 Save $15.01The item has been added -
Camden
SKU: CM-PT250SS-12
Camden CM-PT250SS-12 Stainless Steel Endcaps 12"
12" stainless steel endcaps for Camden mounting frames, indoor/outdoor
- 304 stainless steel construction resists corrosion in wet or outdoor environments
- 12-inch length fits Camden mounting frame assemblies and compatible systems
- Suitable for both indoor and outdoor security and access control installations
$18.00 $11.99 Save $6.01The item has been added -
Add to Cart The item has been addedCamden
SKU: CM-PT250SS-18
Camden CM-PT250SS-18 Stainless Steel Endcaps 18"
- 300-series stainless endcaps resist corrosion in salt-spray and high-humidity sites.
- 1/4" ID fits up to four 22 AWG or two 18 AWG conductors for standard strike circuits.
- 18" length suits frame-to-panel runs in 36"–48" rough openings without splicing.
In stock · Ships same business day$20.00 $13.99 Save $6.01The item has been added -
Camden
SKU: CM-PT250SS-24
Camden CM-PT250SS-24 Stainless Steel Endcaps 24"
- 304-grade stainless endcaps resist corrosion in salt-air and high-humidity outdoor installs.
- 24" length spans standard door frames without splices, reducing signal-run failure points.
- 1/4" bore accepts 4x22 AWG or 2x18 AWG wire; terminates on-site with no special tools.
$24.00 $15.99 Save $8.01The item has been added -
Camden
SKU: CM-PT250SS-36
Camden CM-PT250SS-36 Stainless Steel Endcaps 36 Inch
- 300-series stainless steel resists corrosion in high-humidity and coastal environments.
- 1/4" bore fits 4-conductor 22 AWG and 2-conductor 18 AWG access control cables cleanly.
- 36-inch length covers panel-to-door runs and extended raceway segments in one piece.
$30.00 $19.99 Save $10.01The item has been added -
Add to Cart The item has been addedCamden
SKU: CM-PT375SS-12
Camden CM-PT375SS-12 Stainless Steel Endcaps 12 Inch
- 300-series stainless endcaps resist washdown, salt spray, and moisture-driven corrosion.
- 3/8" ID tube routes up to 16×22 AWG or 8×18 AWG conductors in a single pass.
- 12-inch length fits standard commercial door frames without on-site trimming.
In stock · Ships same business day$20.00 $13.99 Save $6.01The item has been added
Door Relays, Isolators, Locks, & Bolts
Door relays, isolators, electric locks, and bolt hardware connect access control systems to physical door security. Proper selection ensures reliable operation, electrical protection, and compliance with life-safety requirements in commercial deployments.
Plan Your Deployment
- Fail-safe vs fail-secure lock configuration
- Door type and mounting surface compatibility
- Voltage requirements and power supply capacity
- Relay isolation to protect controller boards
- Local fire and building code compliance
Door Relays, Isolators, Locks, & Bolts — Engineering-Grade Door Hardware for Commercial Deployments
This category covers 338 working models of door relays, isolators, locks, & bolts sourced manufacturer-direct or through channel-direct US distribution. Build the rest of your system around the architectural choices below — compatibility, environmental rating, and lifecycle decisions made here propagate through every downstream component you specify.
What to Look For
Fail-safe versus fail-secure determines what happens during power loss. Fail-safe locks unlock on power loss (used on egress doors where life safety dominates); fail-secure locks remain locked (used on storage, server rooms, and exterior doors where security dominates). Code typically mandates fail-safe on stairwell and egress doors. Confirm with the AHJ before specifying — misapplied lock mode is a common code violation.
Strike, mortise, magnetic lock, and electrified panic hardware each have distinct installation, current draw, and code implications. Electric strikes work with most mechanical locksets and are easiest to retrofit. Magnetic locks (maglocks) provide high holding force on glass and wood doors but require dedicated REX and panic-bar interfaces for egress compliance. Verify the door's existing prep before choosing.
Power draw and inrush current dictate power supply sizing. A 5-door system with 1A peak per lock can exceed an undersized 12VDC supply at simultaneous lock-down events. Account for accessories — REX motion sensors, door-position switches, electrified levers — when sizing the supply and the battery backup required for code compliance.
Tamper switches, door-position monitoring, and request-to-exit sensors generate the audit trail your security team needs. Mechanical contact switches are cheaper; magnetic reed switches resist tampering better. Pair each door with a position switch and a REX sensor at minimum — without door-position monitoring, you can't distinguish 'authorized entry' from 'door held open after authorized entry,' which is a common compliance gap.
Key Specs in This Category
| Spec | Available Options |
|---|---|
| IP Rating | IP66, IP67 |
| Connectivity | Wired |
| Power | AC/DC, PoE |
| Type | Accessory, Controller, Monitor, Lock/Strike, Stainless Steel Endcaps, Intercom, door strike, Maglock Brackets |
| Night Vision | Yes |
Top Brands in This Category
Frequently Asked Questions
Fail-safe or fail-secure for stairwell doors?
Fail-safe is mandatory on most stairwell doors and other code-designated egress paths — the lock must release on fire alarm or power loss to allow evacuation. Fail-secure on those doors is a code violation. Confirm the local fire code and AHJ requirements; commercial buildings in the U.S. follow NFPA 101 and the International Building Code, both of which detail egress lock behavior in detail.
What current draw should I plan for electrified locks?
Typical 12VDC electric strikes draw 200-500 mA continuous, with inrush spikes of 1-2A at engagement. Magnetic locks rated for 1,200 lbs holding force draw around 500 mA continuous at 24VDC. Power supplies need to handle simultaneous lock-down current — emergency lockdown events activate all locks at once. Size the supply with at least 25% headroom and confirm battery backup runtime requirements.
Do I need a request-to-exit (REX) sensor?
Most code-compliant electrified door installations require a REX sensor to shunt the alarm during authorized egress. Without REX, every egress event registers as a forced-door alarm. PIR motion sensors are the common choice and integrate with the door controller's REX input. Mechanical push-bar REX is also acceptable for hardware that includes that switch natively.
Can I use one lock for both card and mechanical key entry?
Yes — most electrified strikes and locks allow mechanical key override on the same door. Maintaining a master key for emergency mechanical access is required by code in many jurisdictions and recommended in all. Document the master key holders carefully; an uncontrolled master key program undermines the electronic audit trail.
What's the lifespan of a magnetic lock?
Quality maglocks (Securitron M62, HES, von Duprin) typically last 15-20 years with no mechanical wear. Failure points are the connector, the armature plate-to-lock alignment, and contamination of the magnetic face. Plan for armature replacement at year 10 as a hedge against alignment drift. Strike-type locks with mechanical parts last 5-10 years before strike-plate wear becomes a reliability issue.
Need help choosing? Talk to a Senior Specialist — direct line 877-277-7147 or request a quote.