Command Access ETM BB91 Energy...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$358.00
$248.67
Command Access ETM BB91 Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Stainless Steel

Command Access ETM BB91 Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Stainless Steel

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Model: ETM6WH4545 626 CH-BB91
$358.00
$248.67
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$358.00
$248.67
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Command Access Energy Transfer Monitor Hinge with Door Position Monitoring - 5 Knuckle Standard Weight Stainless 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 hinge features stainless steel base material construction and includes a concealed switching mechanism that monitors door position. Unlike standard power transfer hinges, the ETM eliminates exposed wires, cables, or switches that can be tampered with, providing both power transfer and door monitoring capabilities in a single unit.

Professional Features & Benefits

  • Concealed Power Transfer: Passes low voltage power from hinge jamb to lockset with no exposed wiring for tamper-resistant operation.
  • Door Position Monitoring: Built-in concealed switching mechanism monitors door position for enhanced security and access control integration.
  • Stainless Steel Construction: Standard weight 5 knuckle design with stainless steel base material provides durability for commercial applications.
  • Conventional Appearance: Maintains the same visual profile as non-power transfer hinges for seamless architectural integration.
  • Tamper-Resistant Design: No exposed wires, cables, or switches that can be compromised or damaged.
  • ETM 5 Series Compatibility: Part of the proven ETM 5 Series line for consistent performance and installation standards.
  • Medium Duty Rating: Engineered for reliable operation in commercial door applications with moderate traffic levels.

Technical Specifications

  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Duty Level: Medium Duty
  • Electronic: Yes
  • 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 Security Systems
  • Retail Loss Prevention
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Industrial Facility Monitoring
  • Emergency Exit Compliance
  • Government and Municipal Buildings

Why Choose Command Access Quality?

Command Access Energy Transfer Monitor Hinges deliver professional-grade reliability with stainless steel construction and concealed switching technology rated for medium duty commercial applications. The tamper-resistant design with no exposed components ensures dependable performance in demanding security environments. Engineered for commercial applications where both power transfer and door monitoring capabilities are essential for comprehensive access control systems.

Manufacturer Resources

Command Access Catalog

Product Specs

Subcategory:
Hinges
Product Group:
Door Hinges and Pivots
Series:
ETM 5 Series
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 ETM6WH4545 626 CH-BB91 – Frequently Asked Questions

1) How does the Command Access ETM BB91 hinge get power to an electrified lockset without exposed wiring?
The ETM BB91 passes low voltage power from the hinge jamb through to the lockset inside the hinge itself. There are no exposed wires, cables or switches on the face of the door, so it looks like a conventional 5 knuckle hinge once hung and there is nothing on the outside for someone to cut or pull. That is the whole point of an energy transfer hinge over a surface mounted door loop.
2) Do I still need a separate door position switch if I use the ETM BB91?
No. The ETM carries a concealed switching mechanism that monitors door position built into the hinge, so it does both jobs in one unit: power transfer to the lock and position monitoring back to the access control panel. That saves cutting the frame for a separate recessed contact.
3) What wire configurations can I order the Command Access ETM energy transfer hinge with?
Ten wire options: 2W (2/20ga), 2WH (2/18ga), 4W (4/26ga), 4WH (2/18ga plus 2/26ga), 6W (6/26ga), 6WH (2/18ga plus 4/28ga), 8W (8/28ga), 8WH (2/20ga plus 6/28ga), 10W (10/28ga), and M for monitor only. The heavier gauge in the H options is there for the power leg to an electric lock; the finer conductors handle signal, like request-to-exit or latch monitoring. Count the conductors your lock and monitoring scheme actually need before you pick, because the wire count is fixed at the hinge and you cannot add one later.
4) What sizes does the Command Access ETM BB91 electrified hinge come in?
Four sizes: 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 common commercial full mortise size, so on most standard openings the ETM drops into the existing hinge prep and you are only adding the wire path through the jamb. Match the size to the hinge already in the door rather than guessing.
5) Is a standard weight electrified hinge enough for a heavy commercial door, or do I need heavy weight?
The ETM BB91 is a standard weight, medium duty hinge. That covers ordinary commercial openings with moderate traffic. For a tall, heavy or high-cycle door, a lead-lined door, or an entry that gets hammered all day, step up: ZenSupply carries the Ives 3CB1HW heavy weight concealed bearing hinge and the Hager BB1168 non-removable pin heavy duty ball bearing hinge, though neither of those carries power or monitoring. If the opening needs both heavy duty and electrification you are looking at a different hinge than this one.
6) What is the closest equivalent to the Command Access ETM BB91 electrified hinge from another manufacturer?
The nearest peer is the BEST CECB179-12C, a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, rated medium duty. The ETM BB91 is also a medium duty commercial electrified hinge, built as a 5 knuckle standard weight stainless steel hinge, and it carries a concealed switching mechanism for door position monitoring in the same unit that passes low voltage power from the hinge jamb to the lockset. Wire counts differ in how they are ordered: the CECB179-12C is a 12-wire quick connect design, while the ETM BB91 is specified by wire size option, from 2W (2/20ga) up to 10W (10/28ga), with an M - Monitor Only option for openings that need position monitoring without power transfer.
7) How does the Stanley CECB1900R54L concealed conductor hinge compare with the Command Access ETM BB91?
The Stanley CECB1900R54L is a three knuckle concealed bearing concealed conductor architectural hinge, steel full mortise, standard weight, 4-1/2 by 4-1/2 inches, square corner, left-handed, with 4 wires. The Command Access ETM BB91 is a 5 knuckle standard weight hinge with a stainless steel base material, offered in 4.5 x 4, 4.5 x 4.5, 4.5 x 5, and 5 x 5 inch sizes. Two ordering differences decide the job: the Stanley is a fixed 4-wire, left-hand part, while the ETM BB91 is ordered by wire size option including 4W (4/26ga) and 4WH (2/18ga+2/26ga), and it adds a concealed switching mechanism that monitors door position alongside the power transfer.
8) If the opening does not need power at the lock, what hinge takes the place of the ETM BB91?
When the lockset is mechanical and nothing has to be powered or monitored, a conventional 5 knuckle standard weight hinge covers it. The McKinney MPB79 MacPro is a 5-knuckle standard weight hinge rated standard duty, and the Stanley FBB191 is a 5-knuckle full mortise standard weight hinge in 4.5 x 4.5 rated heavy duty. Both match the 5 knuckle standard weight profile that the ETM BB91 was designed to imitate, which is the point of the ETM: it keeps the same visual profile as a non-power-transfer hinge while carrying low voltage power and door position monitoring.
9) Is a concealed bearing hinge like the Ives 3CB1 or Hager 920 a substitute for the Command Access ETM BB91?
They are not interchangeable, even though the duty rating lines up. The Ives 3CB1 is a steel 3-knuckle concealed bearing full mortise hinge rated medium duty, and the Hager 920 is a full mortise concealed plain bearing hinge with 2 knuckle steel construction, also medium duty. What is concealed in those parts is the bearing. What is concealed in the ETM BB91 is the wiring and the switching mechanism: it passes low voltage power from the hinge jamb to the lockset and monitors door position with no exposed wires, cables, or switches to tamper with. If the drawing calls for power transfer or door position monitoring, a concealed bearing hinge does not satisfy it.
10) I only need door position monitoring, not power to the lock. Can I order the ETM hinge that way?
Yes, order the M option, monitor only. You get the concealed position switch without the power transfer conductors. That suits an opening where the lock is mechanical or already powered another way but you still want the door status reported to the panel.
11) What finishes is the Command Access ETM energy transfer hinge available in?
Four finishes: 613 satin bronze oil-rubbed, 626 satin chrome, 629 bright stainless steel and 630 satin stainless steel. On a building already standardized on 630 hinges, the ETM matches the rest of the openings, which matters because this hinge is meant to look like every other hinge in the run. If your existing hardware is 626, the Don-Jo HWBB74545 and Don-Jo HWBB84545 ball bearing hinges are stocked in satin chrome for the non-electrified openings on the same job.
12) Does the ETM electrified hinge need to be handed when I order it?
The ETM BB91 is ordered by finish, size and wire option, and no handing choice appears among them, so a full mortise hinge in these sizes goes on either hand of door. Compare that with the Stanley CECB1900R54L concealed conductor hinge, which is specified left-handed as part of the model. What you do have to get right on the ETM is the wire count and the size, since both are fixed at the hinge.
13) Can I use the Command Access ETM hinge on a residential door?
It is built for commercial work. The ETM is a commercial, medium duty stainless steel base hinge, and its whole job is feeding an electrified lockset and reporting door position to an access control system, which a house does not have. For plain residential replacement hinges ZenSupply stocks the Delaney 3-1/2 x 3-1/2 interior hinges and the Emtek 91013 residential plain bearing hinges in 3-1/2 x 3-1/2 with square corners. Note the smallest ETM leaf size is 4.5 x 4, so it will not drop into a 3-1/2 inch residential hinge prep anyway.
14) Why choose an energy transfer hinge over a door loop or an electric power transfer for a card reader opening?
Tamper resistance and appearance. A surface door loop or an exposed transfer sits on the edge of the opening where it can be cut, grabbed or damaged, and it reads as add-on hardware. The ETM keeps the conductors inside the hinge and keeps the same visual profile as a non-power-transfer hinge, so on a lobby or retail entrance nothing shows. It also carries the door position switch internally, which removes a second visible device from the frame.
15) The door gets heavy traffic and a wide leaf - is the ETM BB91 the right hinge or should I go heavier?
The Command Access ETM BB91 is rated medium duty and built as a standard weight 5 knuckle hinge, so a high-frequency or heavy-leaf opening is better served by a heavy duty hinge on the mechanical side. Heavy duty options in the same full mortise mounting include the Don-Jo HWBB84545 heavy weight full mortise ball bearing hinge at 4-1/2 x 4-1/2, the Don-Jo HWBB75045 at 5 x 4-1/2, and the Ives 3CB1HW steel heavy weight concealed bearing full mortise hinge. Those carry no power path, so an opening that still needs power at the lock typically pairs a heavy duty hinge on the load-bearing position with the ETM BB91 in the transfer position.
16) I need a tamper-resistant hinge for a secure opening - how does the ETM BB91 differ from a security or prison hinge?
They address different attacks. The Hager BB1168-NRP is a non-removable pin full mortise ball bearing heavy duty hinge, the Deltana DE44R5TA is a 4 x 4 security steel hinge with a 5/8 inch radius sold in pairs, and the BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge from the detention hardware line - all of those resist the door being pulled off its pin or forced at the hinge. The Command Access ETM BB91 is tamper-resistant in the electrical sense: the power path and the door position switch are concealed inside the hinge, with no exposed wires, cables, or switches that can be compromised or damaged. A secure opening that also runs an electrified lock often uses both.
17) Can a residential ball bearing or plain bearing hinge be used in place of the Command Access ETM BB91?
No. Parts such as the Emtek 91013 residential plain bearing hinges in 3-1/2 x 3-1/2 plated steel, the Delaney 3-1/2 x 3-1/2 bulk steel residential interior hinges, and the Schlage S3P1010 3.5 x 3.5 square corner plain bearing mortise hinges are residential-scale mechanical hinges. The Command Access ETM BB91 is a commercial part with a stainless steel base material, medium duty rated, and it is an electronic component that carries low voltage power to the lockset along with a concealed door position switch. Its smallest leaf is 4.5 x 4 inches, so a 3-1/2 inch residential hinge does not fit the same mortise either.
18) I need to match the finish across a run of doors where only one opening is electrified - what finishes does the ETM BB91 come in?
The Command Access ETM BB91 is offered in 613 Satin Bronze Oil-Rubbed, 626 Satin Chrome, 629 Bright Stainless Steel, and 630 Satin Stainless Steel. On the mechanical openings alongside it, the Don-Jo HWBB74545 heavy weight full mortise ball bearing hinge at 4-1/2 x 4-1/2 and the Don-Jo HWBB85045 brass heavy weight hinge at 5 x 4-1/2 are both furnished in satin chrome, which pairs with the 626 ETM BB91 for a consistent look across the run.
19) Will a stainless steel electrified hinge hold up in a healthcare or high-humidity facility?
The ETM BB91 uses a stainless steel base material, which is the reason it turns up on hospital and institutional openings where a plated steel hinge would show corrosion at the knuckle. Order it in 629 bright stainless or 630 satin stainless if you want the finish to match the base material rather than a plating over it. Duty rating is medium, so pair it with door control appropriate to the traffic.
20) Which hinge should I use for a door on pivots or a double acting opening instead of the ETM BB91?
The Command Access ETM BB91 is a full-size butt hinge in 4.5 x 4 through 5 x 5 inch sizes, so it suits a conventional swinging door hung on butt hinges. A double acting interior door is a different mounting altogether: the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors, and the BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge rated heavy duty. Those change how the door is hung, so an opening that goes to pivots needs its power transfer solved separately from the hinge.
How fast can I get the Command Access ETM6WH4545 626 CH-BB91 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 ETM6WH4545 626 CH-BB91 come with a warranty?
Absolutely. The Command Access ETM6WH4545 626 CH-BB91 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 ETM6WH4545 626 CH-BB91?
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 Command Access ETM6WH4545 626 CH-BB91 from ZenSupply?
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