Command Access ETM BB79 Energy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$299.00
$204.00
Command Access ETM BB79 Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Steel

Command Access ETM BB79 Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Steel

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Model: ETM4WH4545 626 CH-BB79
$299.00
$204.00
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$299.00
$204.00
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Command Access Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Steel

Professional Electrified Hinge with Concealed Power Transfer and Door Position Monitoring

The Command Access Energy Transfer Monitor Hinge (ETM) provides an ideal solution for passing low voltage power from the hinge jamb to the lockset while maintaining the appearance of a conventional hinge. This 5 knuckle standard weight steel hinge features a concealed switching mechanism that monitors door position, eliminating exposed wires, cables, or switches that can be tampered with for enhanced security and clean installation aesthetics.

Professional Features & Benefits

  • Concealed Power Transfer: Passes low voltage power from hinge jamb to lockset with no exposed wiring for tamper-resistant operation and clean appearance.
  • Door Position Monitoring: Built-in concealed switching mechanism monitors door position for enhanced access control integration and security applications.
  • Tamper-Resistant Design: No exposed wires, cables, or switches that can be compromised, maintaining security integrity throughout operation.
  • Standard Weight Construction: 5 knuckle steel base material provides reliable medium duty performance for commercial door applications.
  • Conventional Appearance: Maintains the same visual profile as non-power transfer hinges for seamless architectural integration.
  • ETM 5 Series Compatibility: Part of the proven ETM 5 Series platform for consistent performance and installation standards.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Electronic: Yes
  • Knuckles: 5
  • Product Category: Electronic Access Controls
  • Product Group: Door Hinges and Pivots
  • Product Subgroup: Electrified Hinges
  • Product Type: Hinges
  • Series: ETM 5 Series
  • Subcategory: Hinges

Professional Applications

  • Commercial Building Access Control Systems
  • Educational Institution Security Integration
  • Healthcare Facility Door Monitoring
  • Government and Municipal Building Security
  • Corporate Office Access Management
  • Retail Security and Loss Prevention
  • Industrial Facility Entry Monitoring

Tamper-Resistant Design

The ETM hinge eliminates security vulnerabilities associated with exposed wiring by incorporating all power transfer and monitoring components within the hinge structure. This concealed design prevents tampering while maintaining the clean appearance of conventional door hardware, making it ideal for high-security applications where both functionality and aesthetics are important.

Why Choose Command Access Quality?

Command Access Energy Transfer Monitor Hinges deliver professional-grade reliability with steel base construction rated for medium duty commercial applications. The ETM 5 Series platform provides proven performance in demanding access control environments where dependable power transfer and door position monitoring are essential. Engineered for commercial applications where tamper-resistant operation and seamless integration are critical requirements.

Manufacturer Resources

Command Access Catalog

Product Specs

Subcategory:
Hinges
Product Group:
Door Hinges and Pivots
Series:
ETM 5 Series
Knuckles:
5
Product Subgroup:
Electrified Hinges
Duty Level:
Medium Duty
Commercial/Residential:
Commercial
Product Type:
Hinges
Electronic:
Yes
Product Category:
Electronic Access Controls
Department:
Door Hardware

Command Access ETM4WH4545 626 CH-BB79 – Frequently Asked Questions

1) How does the Command Access ETM BB79 hinge get power to an electrified lock without exposed wiring?
Power runs through the hinge itself. The ETM BB79 carries low voltage from the hinge jamb across to the lockset inside the hinge body, so there is no visible loop, cable, or door cord between frame and door. From the corridor it looks like an ordinary 5 knuckle standard weight steel hinge. That matters on two counts: nothing exposed to cut or pull, and no armored loop to coordinate with the frame prep.
2) Does the ETM hinge do door position monitoring, or do I still need a separate door contact?
Monitoring is built in. The ETM has a concealed switching mechanism inside the hinge that reports door position, so you do not need a surface or recessed door contact in the frame head for that signal. If monitoring is all you want and you are not powering anything in the door, order the M - Monitor Only wire option; every other wire option combines transfer conductors with the monitor function.
3) What sizes does the Command Access ETM BB79 electrified hinge come in?
Four: 4.5 x 4, 4.5 x 4.5, 4.5 x 5, and 5 x 5 inches. The 4.5 x 4.5 is the one that drops into standard commercial hollow metal frame prep, so on a typical 1-3/4 inch door in an existing frame that is the size that matches the mortise you already have. Go to 4.5 x 5 or 5 x 5 only where the existing prep is that size or the door thickness demands the extra leaf width.
4) Is one ETM hinge enough, or do all three hinges on the door need to be electrified?
One. The transfer and monitoring happen in a single hinge, so you order one ETM BB79 for the opening and fill the remaining hinge positions with conventional hinges of the same size and finish. Common practice is to put the electrified hinge in the center position, out of reach of the top of the door. Match the balance to something like the Ives 3CB1 or an Orca 3535 series ball bearing commercial hinge in the same 4-1/2 x 4-1/2 size so the openings look uniform.
5) Can I use the ETM BB79 as a straight replacement for a plain ball bearing hinge already in the door?
Only where the existing hinge is the same size and the frame is wired. The ETM BB79 comes in 4.5 x 4, 4.5 x 4.5, 4.5 x 5, and 5 x 5, so if the current hinge matches one of those the leaf and prep line up. What is different is what has to happen behind it: the frame jamb needs power run to the hinge location, because the hinge carries low voltage from the jamb into the door. Swapping in the hinge without that raceway gets you a hinge that does nothing electrically.
6) What hinge should be used instead when the door is too heavy or high traffic for a standard weight electrified hinge?
The ETM BB79 is a standard weight 5 knuckle steel hinge rated medium duty, which suits normal commercial door weights. For a heavier leaf or higher cycle opening, heavy duty peers include the Ives 3CB1HW steel heavy weight concealed bearing full mortise hinge with 3 knuckles, the Hager BB1168 non-removable pin full mortise ball bearing heavy duty hinge, and the Don-Jo HWBB74545 heavy weight full mortise ball bearing hinge at 4-1/2 by 4-1/2 inches. None of those carry conductors or monitoring, so an opening that needs both heavy duty capacity and power to the lockset is usually built with a heavy duty hinge set plus a separate transfer device.
7) If the opening only needs door position monitoring and no power to the lockset, is there a simpler hinge than a full energy transfer model?
Stay in the same hinge and order the M - Monitor Only wire option on the ETM BB79. That keeps the concealed switching mechanism that reports door position while dropping the power transfer conductors, and the hinge still looks and mounts like a conventional 5 knuckle standard weight steel hinge. A plain mechanical alternative in the same 5 knuckle standard weight form is the McKinney MPB79 MacPro, rated standard duty, but it carries no monitoring or conductors at all - it is a hinge only, so door position would have to be picked up by a separate switch.
8) Do the standard weight ball bearing hinges on the rest of the doors work in place of an ETM hinge?
No. A hinge like the Stanley Security FBB191, a 5-knuckle full mortise standard weight hinge at 4.5 by 4.5 inches, or the Orca Hardware 3535 Series 4-1/2 by 4-1/2 inch square corner ball bearing commercial hinge matches the look and the mortise but carries no conductors and no switch. The ETM BB79 is the electrified member of the set: it passes low voltage power from the hinge jamb to the lockset through the hinge and reports door position from a concealed switching mechanism. On a typical access controlled opening the ETM goes in one hinge position and conventional hinges like those fill the rest, which is why the ETM comes in 4.5 x 4, 4.5 x 4.5, 4.5 x 5, and 5 x 5 sizes and finishes from 605 Bright Brass through 626 Satin Chrome to match them.
9) Do I have to specify handing when ordering an electrified transfer hinge?
Not on the ETM BB79. It is ordered by size, finish, and wire option, with no hand called out. That is worth knowing if you are used to specifying hand on concealed conductor hinges, since some competing electrified hinges are handed: the Stanley CECB1900R54L, for example, is a left handed 4 wire hinge, so ordering the wrong hand there means a return.
10) What finishes can I get the ETM BB79 in to match the rest of the hinges in my building?
Ten finishes: 600 primed for painting, 605 bright brass, 606 satin brass, 609 antique brass, 612 satin bronze, 613 satin bronze oil rubbed, 619 satin nickel, 625 bright chrome, 626 satin chrome, and 693 black. For a fleet of commercial openings, 626 satin chrome and 630 territory is what most hollow metal work standardizes on, and 600 is the one to order when the frames and hinges are being field painted. Since only one hinge per door is electrified, the finish code is what makes it disappear against the two conventional hinges above and below it.
11) Should I use an energy transfer hinge or an electric power transfer loop on the door edge?
An energy transfer hinge like the ETM BB79 puts the conductors inside a hinge you were already installing, so there is nothing to prep in the door edge and nothing exposed at the frame. It is the choice where appearance matters or where the door is reachable by the public and a surface loop would get pulled. The tradeoff is conductor count: this hinge tops out at 10 conductors, so an opening with a heavily loaded electrified mortise lock plus multiple monitoring circuits can outrun it. It is also medium duty, standard weight, which sets the ceiling on door weight.
12) I only need to know whether the door is open or closed, not power anything. Is there a version of this hinge for that?
Yes, order it as M - Monitor Only. That gets the concealed door position switch without transfer conductors, which is the configuration for a mechanically locked door you want reported to the access control panel or BMS. It reads as a normal 5 knuckle steel hinge on the opening, so there is no recessed contact drilled into the frame head to fail or be defeated.
13) What is the difference between the McKinney MPB79 and the Command Access ETM BB79?
The number is similar and the hinges are not. The McKinney MPB79 MacPro is a 5 knuckle standard weight hinge with no electrical function. The Command Access ETM BB79 is also 5 knuckle standard weight, but it carries low voltage conductors through the hinge and includes a concealed door position switch. If you are hanging a door, the MPB79 does that job. If the lock in that door needs power or the panel needs to know the door is open, the ETM is the one that does it.
14) What is the difference between the Command Access ETM BB79 and the BEST CECB179-12C electrified hinge?
Both are medium duty electrified steel hinges. The BEST CECB179-12C is a full mortise concealed bearing hinge that terminates in a 12-wire quick connect, so the conductor count is fixed at twelve and the connection is a plug. The ETM BB79 is a 5 knuckle standard weight steel hinge ordered to the conductor count the job needs - 2W (2/20ga), 2WH (2/18ga), 4W (4/26ga), 4WH, 6W, 6WH, 8W, 8WH, or 10W (10/28ga) - and it adds the door position monitoring switch inside the hinge rather than requiring a separate contact.
15) Can a residential hinge be used on an access controlled commercial door instead of an electrified hinge?
No. Hinges such as the Emtek 91013 residential plain bearing pair at 3-1/2 by 3-1/2 inches with square corners in plated steel, the Delaney 3-1/2 by 3-1/2 inch bulk steel residential interior hinges, or the Schlage Residential S3P1010 3.5 by 3.5 inch square corner plain bearing mortise hinges are built for residential interior doors and have no conductors or monitoring. The ETM BB79 is a commercial hinge for electronic access control openings, and its smallest size is 4.5 by 4 inches, so the residential 3-1/2 inch hinges do not even share the mortise.
16) Is a concealed bearing hinge like the Ives 3CB1 an alternative to the ETM BB79?
Only on the mechanical side. The Ives 3CB1 is a steel 3-knuckle concealed bearing full mortise hinge rated medium duty, the same duty rating as the ETM BB79, and the Hager 920 full mortise concealed plain bearing hinge is another medium duty concealed bearing option in 2 knuckle steel. Both hang a door and neither passes power or monitors position. The ETM BB79 is the 5 knuckle version that carries the low voltage conductors and the concealed switch inside the hinge, so it is what goes in when the lockset is electrified and the head end needs a door position input.
17) For a detention or high security opening, is the ETM BB79 the right hinge?
It is built for tamper resistance in commercial access control - all power transfer and monitoring components sit inside the hinge with no exposed wires, cables, or switches - but it is a standard weight medium duty hinge. Detention openings are served by hinges like the BEST BB855 heavy-duty steel double weight concealed ball bearing prison hinge, the Stanley Security double weight prison hinge at 5 by 6 inches furnished with no holes and not swaged, or the Hager 990 STEEL full surface prison hinge at 3 by 4 inches with a welded tip. Those are heavy duty mechanical hinges without power transfer, so a secure electrified opening is typically specified with detention hinges plus a separate transfer path.
18) Is this hinge suitable for a residential exterior door?
No. The ETM BB79 is a commercial electrified hinge built for access control openings in schools, hospitals, offices, and government buildings, and it only earns its cost where there is a panel and a powered lock on the other end. For a house, look at residential hinges instead, like the Delaney 4 x 4 exterior residential hinges with a 5/8 inch radius, sold in pairs, or the Emtek 91013 residential plain bearing pair in 3-1/2 x 3-1/2 with square corners.
How fast can I get the Command Access ETM4WH4545 626 CH-BB79 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 Command Access ETM4WH4545 626 CH-BB79 come with a warranty?
Absolutely. The Command Access ETM4WH4545 626 CH-BB79 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 Command Access ETM4WH4545 626 CH-BB79?
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