Falcon T851 Grade 1 Storeroom Electric Cylindrical Lock

The Falcon T851 is a Grade 1 electric storeroom cylindrical lock built for access-controlled openings in multi-family, institutional, retail, government, and military facilities. It runs on 24VDC at a continuous 0.185 amp draw, rated for continuous duty, and ships as a fail-safe lock: remove power and the outside lever unlocks, restoring free access. It sits in the Falcon T Series Grade 1 lineup under Falcon Lever Locks and Electrified Cylindrical Locks within Cylindrical Lever Locks and Commercial Locks.

What does the Falcon T851 electric storeroom cylindrical lock do?

In normal operation the latchbolt retracts from either side by lever. When the access-control system energizes the lock, the outside lever becomes inoperable; the only way to retract the latchbolt from outside is by key in the cylinder. The inside lever always remains free for immediate egress regardless of lock state. The T851 is field reversible and non-handed, so it installs on any door swing without a special order. The combination of key override and electric control makes it the standard spec for server rooms, pharmacies, secured storage, and controlled institutional access points.

What is the difference between the Falcon T581 storeroom and the T851 electric storeroom?

The T581 is a mechanical storeroom lock: the outside lever is permanently locked and the latchbolt is always retracted by key. No wiring, no power supply, no access-control panel required. The T851 adds electric control: your access-control system unlocks the outside lever on credential validation, logs entries, integrates with alarm panels, and allows time-locking without re-keying. If your project does not require credential-based electric control, the T581 is the simpler and lower-cost answer. If it does, the T851 is the correct product. Both carry ANSI/BHMA A156.2 Series 4000 Grade 1 certification and the same UL 3-hour A fire label. Note: the T561 classroom lock and T501 entry lock are separate T-Series functions entirely; if your spec calls out classroom or entry/office functions, those are different products.

Is the Falcon T851 fail safe or fail secure?

The T851 is fail safe. The outside lever is locked while continuous 24VDC power is applied; cut power and the lever unlocks. Choose fail safe on stairwells, healthcare corridors, and exit-adjacent openings where life-safety code requires egress on power loss, or on doors tied to fire alarm relays. If your opening requires the door to stay locked on power loss (pharmacy, server room, secure evidence storage), you need a fail-secure variant instead. Size your power supply to sustain the continuous 0.185 amp draw across all T851 locks in the system; this is a continuous-duty load, not a momentary draw.

What cylinder options are available for the Falcon T851?

Standard: conventional cylinder with Falcon G keyway, drilled 6 pin chambers, pinned in 5. Options include: Schlage C keyway, 6 or 7 pin pinning, and interchangeable core formats. For Small Format IC (SFIC), order the BD option (less core); for standard IC, order the LD option (less cylinder). IC core cylinders use the A keyway. Cylinder housings and plugs are machined from solid brass; springs are phosphor bronze. Two nickel silver keys are furnished standard. Cylinder assemblies are removable for rekeying without pulling the lock chassis from the door.

Lever, finish, backset, and door thickness options for the Falcon T851

Lever styles: Avalon (A), Dane (D), Quantum (Q). Finishes: 605 Bright Brass, 613 Oil Rubbed Bronze, 619 Satin Nickel, 625 Bright Chrome, 626 Satin Chrome. Backset: 2-3/4" standard, 2-3/8" and 5" available. Door thickness: 1-3/4" to 2-1/8" standard; thin door adapter kit A30775-000-00 available for doors thinner than 1-3/4"; thicker door options available (call). Strike: 4-7/8" x 1-1/4" ANSI curved lip standard. Latch: 1/2" bolt projection standard, 3/4" projection also available.

Specifications

SKU: T851. Function: Electric Storeroom, Fail Safe. Voltage: 24VDC, 0.185A continuous duty. Certification: ANSI/BHMA A156.2 Series 4000 Grade 1. Fire rating: UL 3-hour A label. Handing: Non-handed, field reversible. Mechanism: Brass or cold-formed steel, zinc plated and dichromated for rust resistance. Roses: heavy wrought brass or bronze. Levers: pressure cast solid (no inserts). Mounting: threaded nuts, 2x 10-32 through-bolts.