BEST 9KW Series Electromechani...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,482.00
$870.85
BEST BEST 9KW Series Electrically Unlocked Function (Fail-Safe) Grade 1 Electromechanical Cylindrical Lever Locks BES-9KW-DEL

BEST 9KW Series Electromechanical Cylindrical Lever Lock with Fail-Safe Operation

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Model: 9KW37DEL14CSTK626
$1,482.00
$870.85
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,482.00
$870.85
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BEST 9KW Series Electromechanical Cylindrical Lever Lock with Fail-Safe Operation

Professional Remote Access Control Solution

The BEST 9KW Series electromechanical cylindrical lever lock provides reliable remote locking and unlocking capabilities for commercial applications requiring fail-safe (electrically locked) operation. This Grade 1 heavy-duty lock operates on 12V AC/DC at 0.50 amps or 24V AC/DC at 0.18 amps when used with the supplied Temperature Control Module (TCM). Designed for doors 1-3/4" to 2-1/4" thick, this UL listed lock meets ANSI/BHMA A156.2 Series 4000 Grade 1 standards and is approved for 3-hour fire-rated applications.

Professional Features & Benefits

  • Door Thickness Compatibility: Standard configuration for doors 1-3/4" to 2-1/4" thick accommodating most commercial door applications.
  • Dual Voltage Operation: 12V AC/DC at 0.50 amps or 24V AC/DC at 0.18 amps with supplied TCM for flexible power system integration.
  • Fail-Safe Operation: Electrically locked configuration provides secure access control with automatic unlock during power failure for life safety compliance.
  • Grade 1 Heavy-Duty Construction: Lock chassis meets ANSI/BHMA A156.2 Series 4000 Grade 1 standards for demanding commercial applications.
  • Non-Handed Installation: Universal lever design allows for easy installation on both left-hand and right-hand doors without field modifications.
  • Integrated Smart Features: Built-in request-to-exit sensor and door contact sensors with Intelligent System Controller (ISC) embedded behind escutcheon.
  • Fire Rating Compliance: UL listed for 3-hour A label single doors up to 4' x 10' for both U.S. and Canadian applications.
  • Manufacturer Warranty: 10 Year Limited warranty for added confidence and long-term protection.

Technical Specifications

Types

  • 12 volts AC/DC when used with supplied TCM — 0.50 amps
  • 24 volts AC/DC when used with supplied TCM — 0.18 amps
  • All EU functions: Electrically Unlocked (Fail Secure)
  • All EL functions: Electrically Locked (Fail Safe)

Approval Listings

  • UL listed for GYQS Electrically- controlled singlepoint locks or latches.
  • This product has been approved by the California State Fire Marshal (CSFM) pursuant to section 13144.1 of the California Health and Safety Code.
  • Approved by the city of New York Board of Standards and Appeals under calendar number 730-89-SA. See CSFM listing No. 4136-1175:103. It is subject to re-examination, revision and possible cancellation

Door thickness

  • Standard lock configuration designed for doors 1 3/4" – 2 1/4" thick. NOTE: All W-series locks require the use of a (TCM) Temperature Control Module. A TCM and TCM connector are supplied standard with every order.

Installation & Operation

  1. Verify electrical requirements match available power supply. Confirm 12V AC/DC or 24V AC/DC capacity and ensure Temperature Control Module (TCM) compatibility before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in the specified location ensuring adequate clearance for wiring access, ventilation, and future service requirements.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including fail-safe operation per application requirements.
  6. Restore power and test all functions including normal operation, request-to-exit sensor, door contact sensors, and integration with connected access control systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Security Systems
  • Educational Institution Access Control
  • Healthcare Facility Security
  • Government and Municipal Buildings
  • Industrial Facility Access Points
  • Multi-Tenant Residential Properties
  • Emergency Exit Compliance Applications

Why Choose BEST Quality?

BEST 9KW Series electromechanical locks deliver professional-grade reliability with corrosion-treated steel construction and Grade 1 heavy-duty performance rated to ANSI/BHMA A156.2 Series 4000 standards. Backed by a 10 Year Limited warranty and UL listing for fire-rated applications, these locks provide the same robust features and specifications as BEST mechanical locksets with added remote access control capabilities. Engineered for demanding commercial applications where dependable electronic access control and life safety compliance are essential.

Product Specs

Series:
9KW Series
Subcategory:
Bored Locksets
Grade:
Grade 1
Duty Level:
Heavy Duty
Handle Type:
Lever
Keyed Function:
Single Cylinder
Warranty:
10 Year Limited
Product Group:
Mechanical Locks
Product Subgroup:
Bored Locksets
Product Type:
Electromechanical Leversets
Keyed:
Yes
Electronic:
Yes
Commercial/Residential:
Commercial
Lock Type:
Cylindrical
Product Attribute:
Cylindrical Locks
Product Function:
Fail-Safe
Door Hand Direction:
Non-Handed
Product Category:
Mechanical Locks
Product Substrate:
Corrosion-Treated Steel
Department:
Door Hardware

BEST 9KW37DEL14CSTK626 – Frequently Asked Questions

1) Does the BEST 9KW lock unlock or lock when the power drops?
It unlocks. The 9KW EL functions are electrically locked, which means the lock holds secure while energized and releases on power loss. That is the fail-safe configuration you want on stair doors and egress paths where life safety code requires free passage during an outage. If you need the door to stay locked when power fails, you want an EU (electrically unlocked, fail secure) function instead, not this one.
2) What door thickness does the BEST 9KW electromechanical lever lock fit?
Standard 9KW configuration covers doors 1-3/4 inches to 2-1/4 inches thick, so it drops onto normal 1-3/4 inch commercial doors and still handles the thicker leaves you find on fire and acoustic openings without a special order.
3) What power supply do I need to run a BEST 9KW lock?
Either 12 volts AC/DC at 0.50 amps or 24 volts AC/DC at 0.18 amps, in both cases with the supplied Temperature Control Module in line. Every W-series lock requires the TCM, and a TCM plus connector ships standard with the order, so you are not sourcing that separately. Size the supply off the amp draw at whichever voltage you pick, and note the voltage is a choice you make when ordering (12VDC or 24VDC).
4) Can I use a BEST 9KW lever lock on a fire-rated door?
Yes. The 9KW is UL listed for 3-hour A label single doors up to 4 feet by 10 feet, for both U.S. and Canadian openings. It is also UL listed under GYQS for electrically controlled single point locks, carries California State Fire Marshal approval under CSFM listing 4136-1175:103, and is accepted by the New York City Board of Standards and Appeals under calendar number 730-89-SA.
5) What backset options are available on the BEST 9KW cylindrical lock?
Three: 2-3/4 inches, 3-3/4 inches, and 5 inches. The 2-3/4 inch is the standard commercial cylindrical backset and is what most existing bored preps use. The 3-3/4 and 5 inch backsets exist for wide-stile or glass-front aluminum doors and for openings where the lever needs to sit further off the edge. Measure from the door edge to the center of the existing cross bore before you pick.
6) Which strike ships with the BEST 9KW lock and will it match my existing frame prep?
You choose between the S3 4-7/8 inch ANSI strike and the STK 2-3/4 inch ANSI strike. If the frame is already prepped for a full ANSI 4-7/8 inch strike, order S3 and it drops into the existing cutout. Hollow metal frames with the smaller T-strike prep take the STK. Getting this wrong means welding and repainting a frame, so check the frame before you order rather than the door.
7) Do I need a separate request-to-exit device and door position switch with this BEST lock?
Not as separate hardware on the door. The 9KW has a request-to-exit sensor and door contact sensing built in, with the Intelligent System Controller embedded behind the escutcheon. That keeps the opening free of a surface REX or an inset door contact and cuts the wiring back to the lock itself. Note that RQE is an order option (yes or no), so specify it if your access control panel needs the signal.
8) Do I have to specify handing for the BEST 9KW lever lock?
No. The 9KW lever is non-handed, so one lock covers left-hand and right-hand openings with no field modification. That is useful if you are stocking spares for a building with mixed swings, since a single part number covers every door.
9) Is the BEST 9KW rated for high-traffic commercial use?
It is a Grade 1 heavy duty lockset built to ANSI/BHMA A156.2 Series 4000, with a corrosion-treated steel chassis. Grade 1 is the top commercial tier under A156.2, which is what school, hospital, and government specs normally call for on main-traffic openings.
10) Can I get the BEST 9KW to match the levers and finishes already on my other doors?
Most likely. Lever styles run Contour with Angle Return, Curved with Return, and Curved without Return. Roses come as C (3 inch convex), D (3-1/2 inch convex), K (3 inch convex no ring), and L (3-1/2 inch convex no ring). Finishes cover 605 bright brass, 606 satin brass, 611 bright bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 625 bright chrome, 626 satin chrome, and 690 statuary dark bronze. Picking the larger D or L rose is also the way to cover an oversized or damaged prep from the lock you are pulling off.
11) Is the BEST 9KW keyed, or is it electronic access only?
Both. It is a keyed single cylinder lockset as well as an electrified one, so you keep a mechanical key override on the outside while the access control system handles day-to-day credentials. That matters for master key systems, where the lock needs to fall into the facility's existing keying hierarchy rather than sitting outside it.
12) Should I use an electrified cylindrical lock like the 9KW or go with an electric strike?
A cylindrical lock like the 9KW puts the control in the door leaf, which means no frame cutting and no separate REX or door contact, since both sensors are onboard. Power has to cross the opening through a door loop or electric hinge. An electric strike keeps the existing mechanical lock and puts the wiring entirely in the frame, which is simpler on a retrofit where the frame is already accessible but gives you no door position or exit sensing. Since this is the fail-safe version, it also fits openings where code wants the door to release on power loss.
How fast can I get the BEST 9KW37DEL14CSTK626 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the BEST 9KW37DEL14CSTK626 come with a warranty?
Absolutely. The BEST 9KW37DEL14CSTK626 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the BEST 9KW37DEL14CSTK626?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the BEST 9KW37DEL14CSTK626 from ZenSupply?
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