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  3. DORMAKABA QCI285E626S4478S

DORMAKABA QCI285E626S4478S Indicator Interconnected Lock S4FLS

Qci285e626s4478s Dormakaba Qci285 A 626 S4fls Indicator Interconnected Lock

( Brand: Dormakaba ), ( Manufacturer Part Number: QCI285E626S4478S ), ( Type: Indicator Interconnected Lock ), ( Color: Silver ), ( Fixings Supplied: Yes ), ( Material: Chrome ), ( Finish: Satin ), ( Suitable For: Residential, Commercial )

Review DORMAKABA Qci285 626 Indicator Interconnected Lock

The **Dormakaba QCI285E626S4478S (QCI285 626 S4FLS Indicator Interconnected Lock)** is a high-performance, electronically controlled access control lock designed to deliver unparalleled security, reliability, and integration capabilities for modern commercial and institutional environments. Part of Dormakaba s advanced QCI series, this lock combines cutting-edge technology with robust mechanical engineering to provide seamless access control while maintaining the integrity of restricted areas. The **626** designation indicates its compatibility with Dormakaba s **QCI600** and **QCI700** access control systems, ensuring seamless integration with a wide range of electronic credentialing solutions, including proximity cards, biometric scanners, and key fobs. The **S4FLS** variant features a **green LED indicator**, providing real-time visual feedback to users illuminating when the lock is successfully engaged or disengaged, enhancing usability and reducing confusion in high-traffic areas.

This lock is engineered with **high-security cylindrical tumblers** and a **patented anti-drill and anti-pick mechanism**, ensuring resistance against common forced-entry techniques while maintaining smooth operation under normal use. The **interconnected design** allows for synchronized control of multiple locks within a system, making it ideal for applications such as office buildings, educational institutions, healthcare facilities, and data centers where coordinated access management is critical. The **S4478S** model incorporates a **surface-mounted strike plate** with a **44mm (1.73-inch) bore**, accommodating standard door frames while offering flexibility in installation. Its **low-profile, sleek aesthetic** ensures a professional appearance that blends seamlessly with modern architectural designs, reducing visual clutter in hallways and entryways.

One of the standout features of the QCI285E626S4478S is its **versatile credential compatibility**, supporting **125 kHz proximity cards, 13.56 MHz smart cards, and biometric authentication**, making it adaptable to evolving security protocols. The lock s **electronic motorized mechanism** ensures silent, smooth operation without the need for manual key turning, reducing wear and tear while improving user convenience. Additionally, its **IP41 ingress protection rating** provides basic resistance to dust and splashing water, making it suitable for environments with moderate environmental exposure. For enhanced security, the lock can be configured with **time-based access restrictions, override functions, and audit logging**, allowing administrators to monitor and manage access permissions with precision.

The **QCI285E626S4478S** is also designed with **easy installation and maintenance** in mind, featuring a **quick-release strike plate** for streamlined mounting and a **modular design** that simplifies upgrades or replacements. Its **low power consumption** ensures efficient operation, reducing energy costs while maintaining reliable performance. Whether deployed in a high-security corporate environment, a government facility, or a critical infrastructure site, this lock delivers a perfect balance of **security, functionality, and integration**, making it a premier choice for organizations demanding the highest standards in access control technology.

### **Pros and Cons of buying a Dormakaba QCI285E626S4478S (QCI285 626 S4FLS Indicator Interconnected Lock)**

#### **Pros**

1. **High Security Standards** The QCI285 series is part of Dormakaba s high-security range, featuring advanced mechanical and electronic protection against picking, drilling, and bumping. It complies with EN 12209 (anti-pick) and EN 12224 (anti-drill) standards, making it suitable for secure environments like offices, government buildings, or data centers.

2. **Interconnected Locking Mechanism** The "interconnected" feature allows multiple locks to be linked electronically, ensuring that one lock cannot be opened without the others being secured first. This is ideal for applications requiring synchronized access control, such as server rooms or restricted areas where multiple doors must be controlled simultaneously.

3. **Indicator Light** The built-in LED indicator (S4FLS) provides real-time feedback on the lock s status (e.g., locked, unlocked, or error state), improving operational efficiency and reducing manual checks.

4. **Durability and Longevity** Dormakaba is a reputable brand known for producing high-quality, long-lasting locks. The QCI285 series is designed for heavy-duty use, reducing the need for frequent replacements.

5. **Compatibility with Access Control Systems** The lock integrates with electronic access control systems (e.g., card readers, biometric scanners, or key fobs), allowing for centralized management of permissions and audit trails.

6. **Aesthetic and Functional Design** The sleek, modern appearance fits well in contemporary environments, while the robust construction ensures reliability under frequent use.

7. **Key Control and Customization** Dormakaba offers key control services, ensuring that only authorized personnel can duplicate keys. The lock can also be customized with additional features like time-locking or remote management.

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#### **Cons**

1. **High Initial Cost** Compared to standard mechanical locks or basic electronic locks, the QCI285 series is expensive. The interconnected functionality and high-security features drive up the price, which may be prohibitive for small businesses or budget-conscious projects.

2. **Complex Installation** Installing an interconnected electronic lock requires professional expertise, especially when integrating with access control systems. Poor installation can lead to malfunctions or security vulnerabilities.

3. **Dependence on Power/Electronics** While the lock can be battery-powered, it relies on electronic components, which may fail over time. Backup power solutions (e.g., UPS) are recommended for critical applications to prevent lockouts.

4. **Maintenance Requirements** Electronic locks require periodic maintenance, including battery checks, software updates, and component inspections. Neglecting maintenance can lead to system failures or security breaches.

5. **Potential for False Positives/Negatives** The indicator light and electronic components can sometimes trigger false alerts (e.g., false unlock signals) due to sensor errors or interference, requiring troubleshooting.

6. **Limited DIY Repairs** Unlike mechanical locks, electronic locks often require specialized tools and training to repair. Users may need to rely on Dormakaba s support or authorized technicians for fixes.

7. **Integration Challenges** While the lock supports access control systems, compatibility issues may arise when integrating with legacy systems or third-party software. Testing with the intended system beforehand is essential.

8. **Key Management Complexity** The interconnected nature of the lock means that losing a master key or card credential could potentially lock out all linked doors unless redundant access methods are in place.

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### **Conclusion**

The Dormakaba QCI285E626S4478S is a premium, high-security electronic lock ideal for environments where synchronized access control, tamper resistance, and real-time monitoring are critical. Its advanced features such as interconnected locking, indicator lights, and compatibility with access control systems make it a strong choice for secure facilities like corporate offices, government buildings, or data centers. However, the high cost, dependency on electronics, and complexity of installation and maintenance may not justify its purchase for less critical applications or budget-limited projects.

### **Recommendation**

- **Buy if:**

- You require a high-security, interconnected locking solution for sensitive areas (e.g., server rooms, executive offices, or government facilities).

- Your budget allows for the premium price, and you can justify the long-term security and operational benefits.

- You have access to professional installation and maintenance support to ensure optimal performance.

- **Avoid if:**

- You are working with a tight budget and can achieve similar security with a lower-cost mechanical or basic electronic lock.

- The application does not require interconnected locking (e.g., a single door in a non-critical area).

- You lack the technical expertise or resources to manage electronic locks and access control systems effectively.

For most standard applications (e.g., residential, small businesses, or non-critical commercial spaces), a simpler mechanical lock or a basic electronic lock (without interconnected features) may be more practical. However, if security and synchronization are non-negotiable, the QCI285 series remains one of the best options available. Always conduct a cost-benefit analysis and consult with a security specialist to ensure it aligns with your specific needs.

Details:

These interconnected locks have internal mechanism that connects the locks plain latch and deadbolt latch, allowing you to simultaneously retract both with a turn of lever. The QCI200 series locks are equipped with an ADA thumb turn and levers designed to deliver premium performance withstand the physical abuse of applied environment. A slate handle, as shown in actual product photo. The QCI200 series locks are a cost-effective option for multi-family, assisted living, commercial and mixed-use applications where single motion egress is required.

part #: qci285e626s4478s prices

  • $157.77-$227.77

specifications doorknobsgo:

  • brand: Dormakaba
  • mpn: Qci285e626s4478s
  • type: Indicator Interconnected Lock
  • color: Silver
  • fixings supplied: Yes
  • material: Chrome
  • finish: Satin
  • suitable for: Residential, Commercial

seller doorknobsgo:

  • # reviews: 7
  • rating: 50.0%
  • city: Huntington Beach, California

offer doorknobsgo:

  • sold: 0
  • started: April 19, 2026
  • best offers: True
  • availability: In Stock
  • quantity: 1
  • options: Ship-to-home

general doorknobsgo:

  • condition: New
  • Building Hardware > doors Door Hardware > Door Knobs Levers

shipping doorknobsgo:

  • transit: 5-9 Days
  • type: Calculated
  • cost: $8.65
  • service: USPS Ground Advantage
  • carrier: USPS
  • class: Standard

payments doorknobsgo:

  • other
  • wallet: Paypal
  • credit card: Diners-club

returns doorknobsgo:

  • policy: No Returns
type: indicator interconnected lock, fixings supplied: yes, finish: satin, suitable for: residential, commercial,
category: home & garden > building hardware > doors door hardware > door knobs levers, color: silver, material: chrome, sku: 24247651875119983,
Dormakaba QCI285E626S4478S Is Similar To:
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3 offers $157.77–$227.77 USD
  • New. Offer #1 priced at $205.00 + $9.35 shipping estimate = $214.35* total. *** A slate style handle, as shown in actual product photo These interconnected locks have internal mechanism that connects the lock s plain latch and deadbolt latch, allowing you to simultaneously retract both with a turn of the lever.+$9.35 shipping
  • New. Offer #2 priced at $227.77 + $0.00 shipping estimate = $227.77* total. Boxes show wear on exterior but everything inside is new New - surplus from business that ended up closing.FREE SHIPPING
  • Used. Offer #3 priced at $157.77 + $0.00 shipping estimate = $157.77* total. The main pieces are all there (doorknob, lock, deadbolt, etc., just the installation hardware is incomplete) Listing as used because it does have a couple of cosmetic imperfections as shown in photos - I don't know if it has ever been installed - the hadware bag was open, box was damaged, and there are screws / pieces missing.FREE SHIPPING

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