Description
LOX EM3500M Monitored Single Electromagnetic Lock – 280kg Holding Force, Dual Voltage, Fire Rated
Overview
The LOX EM3500M is a professional-grade slimline single-door electromagnetic lock built for high-security commercial access control across Australia. Delivering a proven 280kg holding force and featuring integrated Hall Effect Lock Status Sensor (LSS) and Reed Switch Door Status Sensor (DSS), the EM3500M gives your access control system complete real-time visibility over both lock engagement and door position. With a 4-hour fire rating, anti-tamper plate, zero residual magnetism, and dual 12V/24VDC compatibility, it is the go-to monitored single maglock for Australian security installers and integrators.
Description
The “M” in EM3500M stands for monitored — and that distinction matters. Where the standard EM3500 simply locks and unlocks, the EM3500M continuously reports back to your access control panel: the Hall Effect LSS confirms the lock is properly engaged, while the reed switch DSS detects whether the door is physically closed. Together, they eliminate blind spots in your security system — triggering alerts if a door is forced, left ajar, or the lock fails to engage.
The slimline 238mm body mounts cleanly on single door frames without dominating the aesthetic, while the satin anodised aluminium and zinc-plated body resist corrosion in Australian commercial environments. The included anti-tamper fixing plate conceals the armature bolt fixings once installed, deterring physical attacks on the lock. Built-in MOV surge protection guards the internal circuitry, and zero residual magnetism ensures instant door release the moment power is cut — critical for safe egress in fire or emergency situations. Tested to over 1,000,000 cycles for long-term, maintenance-free reliability.
Key Features
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280kg Holding Force: Industry-standard single door holding force, tested to over 1,000,000 cycles for maintenance-free commercial reliability.
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Dual Monitoring – Hall Effect LSS & Reed Switch DSS: Real-time lock status and door position feedback to your access control panel — essential for alarm integration and audit trail compliance.
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4-Hour Fire Rating: Certified to Australian Standards (AS) for use on fire-rated single door assemblies.
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Fail-Safe Operation: Releases instantly when power is removed — the correct and required configuration for most commercial and fire-rated door applications in Australia.
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Zero Residual Magnetism: Innovative coil design ensures immediate door release on power loss, critical for safe emergency egress.
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Anti-Tamper Fixing Plate: Included as standard — conceals armature bolt fixings once installed, deterring unauthorised removal and physical attacks.
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Red/Green LED Indicator: High-visibility panel provides instant visual confirmation of locked or unlocked status for security staff and installers.
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Dual Voltage – 12VDC / 24VDC: Compatible with the vast majority of access control power supplies and panels used in Australian installations.
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Built-In MOV Surge Protection: Guards internal circuitry against voltage spikes — extends product life in variable power environments.
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Slimline Profile: 238mm (L) × 48mm (H) × 25mm (D) body mounts cleanly on standard single door frames without bulk.
Use Cases
- Commercial office building single door entry and exit points
- Government buildings and council facilities
- Retail stores and shopping centre back-of-house doors
- Schools, universities, and TAFE campuses
- Hospitals and healthcare facility controlled entry points
- Data centres and server room single door access
- Strata and apartment building common area doors
- Industrial facilities requiring monitored single door access control
Technical Specifications
| Specification |
Detail |
| Model |
LOX EM3500M (Monitored) |
| Holding Force |
Up to 280kg (600 lb) |
| Operating Voltage |
12VDC / 24VDC (Dual Voltage) |
| Current Draw |
530mA @ 12VDC | 260mA @ 24VDC |
| Monitoring |
Hall Effect LSS (Lock Status) & Reed Switch DSS (Door Status) |
| Lock Type |
Single Electromagnetic (Fail-Safe) |
| Dimensions (Lock Body) |
238mm (L) × 48mm (H) × 25mm (D) |
| Fire Rating |
Up to 4 Hours (AS Certified) |
| LED Indicator |
Red/Green High-Visibility Panel |
| Surge Protection |
MOV Varistor (Built-In) |
| Residual Magnetism |
None (Instant Release) |
| Finish |
Satin Anodised Aluminium / Zinc-Plated Body |
| Cycle Rating |
1,000,000+ cycles |
| Anti-Tamper Plate |
Included as Standard |
| Certifications |
CE, RCM (C-Tick), 4-Hour Fire Rated (AS) |
Recommended Accessories & Compatible Products
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LOX AMZB4-LP L & Z Bracket – Required for inward-opening single door installations; ensures correct armature plate alignment for full holding force.
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LOX AMLB4 Adjustable L-Bracket – For outward-opening single door configurations or narrow door frames where a direct surface mount is not possible.
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Access Control Power Supply (12VDC / 24VDC) – Regulated power supply with battery backup to maintain lock operation during power outages.
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Exit Button / Request-to-Exit (RTE) – Surface-mount or flush egress button for compliant door release on single door installations.
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Door Controller / Access Panel – Single or multi-door panels compatible with the EM3500M’s LSS and DSS monitoring outputs for full system integration.
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Door Closer – Overhead door closer to ensure the door returns to the locked position after each use; required for fire door compliance in Australia.
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LOX EM3500 – Non-monitored version of this lock; suitable where LSS/DSS monitoring is not required and cost is a primary consideration.
Frequently Asked Questions
What is the difference between the EM3500 and the EM3500M?
The EM3500 is the non-monitored version — it locks and unlocks but provides no status feedback to your access control panel. The EM3500M adds dual monitoring via Hall Effect LSS (lock status) and reed switch DSS (door status), plus an anti-tamper fixing plate as standard. It is the correct choice for systems requiring real-time feedback, alarm integration, or audit trail compliance.
Is the EM3500M fail-safe or fail-secure?
The EM3500M is a fail-safe electromagnetic lock — it releases (unlocks) when power is removed. This is the standard and required configuration for most commercial and fire-rated single door applications in Australia.
What brackets do I need for the EM3500M?
The correct bracket depends on your door swing direction. For inward-opening doors, use the LOX AMZB4-LP L & Z bracket. For outward-opening doors or narrow frames, the LOX AMLB4 adjustable L-bracket is the correct choice. Using the wrong bracket will result in misalignment and reduced holding force.
Is the EM3500M suitable for fire-rated doors?
Yes. The EM3500M is certified to Australian Standards (AS) for use on fire-rated door assemblies for up to 4 hours, meeting Australian building code requirements for fire-rated access control hardware.
What voltage does the EM3500M operate on?
The EM3500M supports both 12VDC and 24VDC operation, making it compatible with the vast majority of access control power supplies used in Australian installations.
Is the anti-tamper plate included?
Yes. The anti-tamper fixing plate is included as standard with the EM3500M. It conceals the armature bolt fixings once installed, deterring physical attacks and unauthorised removal of the armature plate.
Do you ship Australia-wide?
Yes. We ship to all states and territories including NSW, VIC, QLD, WA, SA, TAS, ACT, and NT. Contact us for bulk order pricing and project quotes.
