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Sargent 28-10XG70 LL Electric Lockset Fail Safe, Cylindrical Lockset, Grade 1 Heavy Duty
Function Information:
The Sargent 28-10XG70 LL with the RX Monitoring option is a sophisticated, high-performance electrified solution designed for mission-critical access control. As a Fail Safe (Power-to-Lock) lockset, it ensures the outside lever is locked only when power is applied, automatically unlocking during a power failure or fire alarm to provide safe, immediate entry. Built on the legendary Sargent 10X Line chassis, this device is engineered to withstand extreme abuse while providing the digital oversight required for modern security infrastructures.
Advanced RX Monitoring with Patent-Pending Technology
The optional RX (Request-to-Exit) Monitoring of the inside lever sets this lockset apart from standard electrified hardware. It features a Patent Pending design utilizing a Non-Contact Switch. Unlike mechanical switches that degrade with friction and use, this non-contact system offers superior longevity and reliability by eliminating physical wear.
- Bidirectional Lever Rotation: Effectively monitors egress regardless of which way the interior lever is turned.
- Non-Handed Design: Simplifies field installation and inventory management as the monitoring works on any door swing.
- Internal Switch Versatility: Provides both Normally Open (N/O) and Normally Closed (N/C) contacts to integrate with any access control panel.
- Multi-Function Availability: This advanced RX technology is available across a wide range of functions, including 04, 05, 15, 37, 70, and 71.
Extreme Durability and Vandal Resistance
The Sargent 10X Line is the industry benchmark for strength. While traditional Grade 1 locks are tested to 1 million cycles, the 10X series is UL-verified to exceed 20 million cycles—20 times the industry standard. It is built to resist 3,100 in-lb of abusive torque and 1,600 lbs of offset lever pull. The freewheeling locked lever design allows the outside handle to rotate freely when power is applied, preventing vandals from using leverage to snap the internal solenoid or motor.
Key Product Features
- Fail Safe Function (70): Power-to-Lock configuration; unlocks automatically for life-safety when power is cut.
- Request-to-Exit (RX): Built-in non-contact monitoring provides an audit trail of every exit through the opening.
- ElectroLynx® Ready: Includes a modular wire harness with an 8-pin connector (QC8) for plug-and-play installation with ASSA ABLOY systems.
- EcoFlex® Technology: Provides up to 92% energy savings in electromechanical applications, reducing the overall power load on your facility.
- ADA & Fire Rated: Ergonomic LL lever meets all accessibility requirements and is UL/cUL Listed for 3-hour fire doors.
- Severe Weather Certified: Windstorm and Hurricane rated, ensuring protection in the most demanding environments.
Technical Specifications
| Feature | Details |
| Function | 70 Electrified Fail Safe with Optional RX Monitoring |
| Monitoring Switch | Patent-Pending Non-Contact Switch |
| Connectivity | ElectroLynx® 8-Pin (QC8) Connector |
| Operating Voltage | 12VDC or 24VDC (Regulated) |
| Cycle Rating | UL Verified 20 Million Cycles |
| Backset | 2-3/4" (Standard) |
| Strike | 808 Curved Lip ANSI 4-7/8" |
| Warranty | 10-Year Mechanical / 2-Year Electrical |
Ideal Applications
- Stairwell Towers: Meeting fire codes with Fail Safe locking and monitoring egress for security logs.
- High-Traffic Main Entrances: Where energy efficiency and long-term mechanical durability are required.
- Government & Corporate Offices: Integrating request-to-exit signals to prevent "door forced" alarms during legal egress.
- Healthcare Facilities: Controlling sensitive areas while maintaining a hands-free audit trail of staff movement.
Ordering & Installation Information
The Sargent 28-10XG70 LL RX is designed for rapid installation, typically taking less than one minute for the mechanical chassis. For doors thicker than 2", please specify the 31- Option. This lockset is fully compatible with Sargent High-Security Key Systems, including Degree®, Signature, and Keso, ensuring a secure physical override.
| Finish with BHMA code | 626 - US26D Satin Chrome or 613 - US10B Oil Rubbed Bronze or 613E - US10BE Oil Rubbed Bronze Equal or 605 - US3 Polish Brass or 606 - US4 Satin Brass or 612 - US10 Satin Bronze or 625 - US26 Polish Chrome |
| Voltage | 12 VDC or 24 VDC |
| Sargent Cylinder Options | KD - LA Kwy Keyed Different or SC - Schlage C Kwy 0 Bitted or 60 prefix - Sargent LFIC Prep Less Core or 70 prefix - Best/Falcon SFIC Prep Less Core or LC - Less Sgt Cylinder |
| RX Monitoring | No Monitoring Required or RX Switch Monitoring of Inside Lever |
| Brand | Sargent |
| ANSI Cyl Lock Function | Fail Safe |
| Trim Design | LL |
| Series | Sargent - 10X Line |
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