Hager BB1279-ETW Electric Thro...
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Hager BB1279-ETW Electric Through-Wire Full Mortise Ball Bearing Hinge with 5 Knuckles

Hager BB1279-ETW Electric Through-Wire Full Mortise Ball Bearing Hinge with 5 Knuckles

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Model: BB1279-4.5X4.5-US26D-ETW-4
$434.00
$259.59
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Hager BB1279-ETW Electric Through-Wire Full Mortise Ball Bearing Hinge with 5 Knuckles

Professional Electric Through-Wire Hinge Solution

The Hager BB1279-ETW Electric Through-Wire Full Mortise Ball Bearing Hinge delivers professional-grade performance for medium weight doors requiring medium frequency service. This 5-knuckle hinge features dual ball bearings and electric through-wire capability for access control integration. Manufactured from steel with steel pin construction and complies with NFPA80 requirements for fire rated door assemblies. ANSI A8112 certified for commercial applications.

Professional Features & Benefits

  • Electric Through-Wire Design: ETW configuration enables seamless integration with access control systems and electronic monitoring applications.
  • Dual Ball Bearing Construction: Two ball bearings provide smooth, quiet operation and extended service life for medium duty commercial applications.
  • Fire Rating Compliance: Meets NFPA80 requirements for use on fire rated door assemblies ensuring code compliance and safety.
  • 5-Knuckle Configuration: Five knuckle design provides enhanced strength and stability for medium weight doors.
  • Non-Rising Removable Pin: Features button tip and plug design for easy maintenance and service access when required.
  • Steel Construction: Steel leaves with steel pin provide exceptional durability and strength for demanding commercial environments.
  • ANSI Certified Performance: ANSI A8112 certification ensures compliance with industry standards for commercial door hardware.
  • Versatile Installation Options: Available with reversible hole pattern for flexible installation requirements.
  • Two ball bearings. Non-rising removable pin with button tip and plug;

Technical Specifications

  • ANSI/BHMA: ANSIA8112
  • Applications: For use on medium weight doors or doors requiring medium frequency service.
  • Bearing Type: Ball Bearing
  • Certifications: ANSI A8112;
  • Commercial/Residential: Commercial
  • Duty Level: Medium Duty
  • Electric Modifications: EMN (Electric Monitor Only), ETW (Electric Through-Wire Only), ETM (Electric Through-Wire with Monitoring), Quick Connect
  • Electronic: Yes
  • Features: Two ball bearings. Non-rising removable pin with button tip and plug.
  • Finishes: USP, US3, US4, US10, US10A, US10B, US26D;
  • Fire Rating: Complies with NFPA80 requirements for use on fire rated door assemblies;
  • Knuckles: Features: Two ball bearings. Non-rising removable pin with button tip and plug ;
  • Material: Steel with Steel Pin ;
  • Notes: Available with reversible hole pattern..
  • Options: 3-1/2" x 3-1/2" (89 mm x 89 mm) available with reversible hole pattern.
  • Series: BB1279
  • Subcategory: Full Mortise Hinges

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm compatibility with access control or monitoring systems before proceeding.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the hinge leaves in mortised door and frame locations ensuring proper alignment and clearance for through-wire routing.
  4. Route and connect wiring through the hinge barrel according to manufacturer wiring diagrams. Use appropriate wire gauge and connectors for the application.
  5. Configure operational settings including any monitoring functions per application requirements.
  6. Restore power and test all functions including normal operation, electrical continuity, 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 Access Control Systems
  • Healthcare Facility Security Integration
  • Educational Institution Door Monitoring
  • Government and Municipal Building Security
  • Industrial Facility Access Points
  • Fire Rated Door Assembly Compliance
  • Medium Traffic Commercial Entrances

Why Choose Hager Quality?

Hager BB1279-ETW hinges deliver professional-grade reliability with steel construction and dual ball bearing design rated for medium duty commercial service. ANSI A8112 certification and NFPA80 fire rating compliance ensure code adherence and dependable performance. Engineered for demanding commercial applications where electric through-wire capability and reliable door operation are essential.

Full mortise commercial hinge engineered to meet or exceed ANSI standards for door weight, frequency of use, and finish durability.

Product Specs

Subcategory:
Full Mortise Hinges
Knuckles:
5
Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Hinges
Features:
Two ball bearings. Non-rising removable pin with button tip and plug.
ANSI/BHMA:
ANSI A8112
Series:
BB1279
Duty Level:
Medium Duty
Bearing Type:
Ball Bearing
Commercial/Residential:
Commercial
Electronic:
Yes
Product Substrate:
Steel
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

Hager BB1279-4.5X4.5-US26D-ETW-4 – Frequently Asked Questions

1) Will the Hager BB1279-ETW hinge carry power to an electrified lock without a separate power transfer?
That's exactly what the ETW does. The BB1279-ETW is an electric through-wire hinge, so the conductors run through the hinge barrel and feed an electrified lock, electric strike on the door leaf, or exit device trim without a surface power transfer or a door loop. Wire count is your call at order time: 4-wire or 8-wire. Four wires covers a simple locking function; eight gives you spare conductors for a lock plus a request-to-exit or latch signal on the same hinge. Note that through-wire only passes power. If you also need door position monitoring, the ETM (electric through-wire with monitoring) or EMN (monitor only) modification is what you want instead.
2) Can I use an electrified through-wire hinge on a fire rated door?
The BB1279-ETW complies with NFPA 80 requirements for use on fire rated door assemblies, so it's acceptable on a rated opening. It's also ANSI A8112 certified. Two things stay on you: the electrified lock the hinge is feeding has to be a fail-safe/fail-secure arrangement your fire code allows, and the door and frame prep must not compromise the label.
3) Is the BB1279-ETW rated for a high traffic entrance like a school corridor or hospital main door?
No. The BB1279-ETW is a medium duty hinge, specified for medium weight doors or doors seeing medium frequency service. A high-traffic opening (main entries, busy corridors, anything with a heavy door or a closer working hard) calls for a heavy weight electrified hinge. From other brands we carry, the Command Access ETH-BB68 is a heavy duty 5-knuckle energy transfer hinge, and the ETM-BB68 is the heavy duty version with an integrated door position switch. Use the BB1279-ETW on offices, classrooms, back-of-house and similar medium frequency electrified openings.
4) What size electrified hinge do I need for a 1-3/4 inch commercial door?
For a standard 1-3/4 inch commercial door, 4-1/2 x 4-1/2 is the usual size, and it's one of eleven the BB1279-ETW is built in: 3-1/2 x 3-1/2, 4 x 3-1/2, 4 x 4, 4-1/2 x 4, 4-1/2 x 4-1/2, 5 x 4, 5 x 4-1/2, 5 x 5, 6 x 4-1/2, 6 x 5, and 6 x 6. Hinge height is set by door thickness and weight; hinge width by how far the door has to clear a trim or reveal when it swings. If the door is wide or carries heavy trim, step up to a 5 inch or 6 inch width rather than a taller leaf.
5) Do I have to specify handing when ordering a Hager BB1279-ETW electric hinge?
Yes, and it matters more than on a plain hinge. An electrified hinge has the wire exit on one leaf, so left-hand and right-hand versions are not interchangeable the way a standard full mortise hinge is. Determine the door hand before ordering. The one exception in the family is the 3-1/2 x 3-1/2 size, which is available with a reversible hole pattern.
6) How many electric hinges do I need per door, and can I use standard hinges for the rest?
One electrified hinge per door does the job. Only one hinge has to carry the conductors, so the common setup is a single BB1279-ETW in the center or top position with plain BB1279 ball bearing hinges in the remaining locations. Buying three electrified hinges for one door is wasted money. Match the size and finish across all the hinges on the opening so the leaves and the frame prep line up.
7) The BB1279-ETW passes power only. What hinge carries power and door position monitoring at the same time?
The BB1279-ETW in ETW form is through-wire only. When the opening also needs door status back to the panel, the Command Access ETM-CB70 is a medium duty energy transfer monitor hinge with door position sensing on a 3 knuckle steel base, and the Command Access ETM-BB68 does the same on a heavy duty base with an integrated door position switch. Both combine the power transfer path with monitoring in one hinge.
8) Is there an electrified hinge with more than 8 wires, for an opening that needs more conductors than the Hager BB1279-ETW carries?
The BB1279-ETW is offered in 4 wire and 8 wire configurations. When the device schedule needs more conductors than that, the BEST CECB179-12C is a steel full mortise electrified hinge with a 12-wire quick connect, also rated medium duty. It is a concealed bearing hinge rather than a 5 knuckle ball bearing hinge, so the barrel appearance and knuckle count differ from the BB1279-ETW.
9) What should I use instead of the Hager BB1279-ETW on a door with no electrified locking hardware?
The BB1279-ETW carries wire through the hinge for access control integration, which is only useful when the opening has an electrified lock, strike, or monitoring device. On a mechanical opening, a non-electrified commercial ball bearing hinge covers the same duty: the Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge rated medium duty, and the Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners. Both give ball bearing operation without a wire path to terminate.
10) What finishes does the Hager BB1279 electric hinge come in, and which one matches satin chrome hardware?
Eight finishes: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 625 bright chrome, 626 satin chrome, and US10A antique bronze. For a building standardized on satin chrome levers and closers, 626 is the match, and it's the most common commercial specification. If you're matching older satin brass hardware, 606 is the one.
11) Is a 5-knuckle ball bearing hinge better than a 3-knuckle concealed bearing hinge for an electrified door?
They're different looks and different bearing designs, not better and worse. The BB1279-ETW is a 5-knuckle full mortise hinge with two ball bearings, so the bearing races are visible between the knuckles, and it uses a non-rising removable pin with button tip and plug. A concealed bearing hinge hides the bearing inside the barrel for a cleaner architectural line. If your building standard is concealed bearing electrified, the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, and the Stanley CECB1900R54L is a 3-knuckle concealed bearing concealed conductor hinge in 4-1/2 x 4-1/2, 4-wire. Where the rest of the openings already run 5-knuckle Hager, stay with the BB1279 so the barrel profile matches.
12) Should I order 4-wire or 8-wire on an electrified hinge?
Count the conductors your hardware actually needs, then add spares. Four wires handles a single electrified function, typically two for power to an electric lock or strike. Eight wires is what you order when the door does more than lock: an electrified lever plus a request-to-exit switch, plus latch or key monitoring, or when you want spare pairs pulled for a future card reader upgrade so nobody has to re-prep the frame later. On a retrofit into an existing opening, 8-wire is the cheap insurance.
13) Can I swap a plain ball bearing hinge for the electrified BB1279-ETW without re-prepping the door?
The leaf sizes are the same, so a BB1279-ETW in the matching size drops into the existing mortise. What is not already there is the wire path. The frame needs a raceway or conduit from the hinge pocket back to the power supply, and the door needs a route from the hinge to the lock prep. On a hollow metal frame that usually means drilling and pulling wire; on an existing wood door it can mean a through-bore. Budget for the wiring work, not just the hinge.
14) Can I substitute a plain bearing commercial hinge for the Hager BB1279-ETW?
No. The BB1279-ETW is a ball bearing hinge with two ball bearings and a non-rising removable pin, and it carries wire through the barrel. Plain bearing commercial hinges such as the Orca Hardware 4040 Series 4 inch by 4 inch square corner and the Orca Hardware 4014 Series 4 inch by 4 inch quarter inch radius corner are medium duty plain bearing hinges with no bearing races and no conductor path, so they neither match the bearing construction nor carry power to the lock.
15) I need a left-handed 4-wire concealed conductor hinge in 4-1/2 by 4-1/2. Is that the Hager BB1279-ETW?
The BB1279-ETW is offered in a 4 wire option and in a 4.5 inch by 4.5 inch size, but it is a 5 knuckle ball bearing hinge and its hole pattern is reversible rather than hand specific. For a hand specific concealed conductor hinge, the Stanley Security CECB1900R54L is a three knuckle concealed bearing concealed conductor architectural hinge, steel full mortise, standard weight, 4-1/2 inch by 4-1/2 inch, square corner, left-handed, 4-wire.
16) Is a McKinney MacPro 5-knuckle hinge an equivalent to the Hager BB1279-ETW?
They share the 5 knuckle full mortise format, but not the electrical function. The McKinney MP79 MacPro is a 5-knuckle full mortise standard weight hinge and the MPB79 MacPro is a 5-knuckle standard weight hinge, both rated standard duty and neither carrying a conductor through the barrel. The BB1279-ETW is a medium duty ball bearing hinge with through-wire capability for access control integration, so the MacPro hinges suit a mechanical opening rather than an electrified one.
17) What replaces the Hager BB1279-ETW on a detention or double weight opening?
The BB1279-ETW is built for medium weight doors and medium frequency service, which puts detention openings outside its range. For that duty, the BEST BB855 is a heavy duty steel double weight concealed ball bearing prison hinge, and the Stanley Security BB855 is a double weight prison hinge furnished with no holes and not swaged in a 5 inch by 6 inch size. Neither carries wire through the barrel, so an electrified detention opening needs a separate power transfer path.
18) Will a residential hinge work in place of the Hager BB1279-ETW on an apartment corridor door?
No. The BB1279-ETW is a commercial hinge complying with NFPA80 requirements for fire rated door assemblies and carrying ANSI A8112 certification. Residential hinges such as the Delaney 3-1/2 inch by 3-1/2 inch bulk steel interior hinges and the Emtek 91013 residential plain bearing hinges, a 3-1/2 inch by 3-1/2 inch plated steel pair with square corners and plain bearings, are built for interior residential openings and do not carry the same commercial rating or a wire path for electrified hardware.
19) What is the difference between the Hager BB1279-ETW and the Command Access ETH-CB70?
Both are energy transfer hinges rated for medium duty service. The BB1279-ETW is a full mortise ball bearing hinge with 5 knuckles and two ball bearings, offered in sizes from 3.5 inch by 3.5 inch up to 6 inch by 6 inch. The Command Access ETH-CB70 is a 3 knuckle standard weight steel base energy transfer hinge. The choice comes down to knuckle count and barrel style at the opening, since both move power through the hinge.
20) The opening needs a heavy weight ball bearing hinge in 4-1/2 by 4-1/2 or 5 by 4-1/2. What are the options next to the Hager BB1279-ETW?
The BB1279-ETW covers both of those sizes but is rated medium duty. For heavy weight in the same full mortise ball bearing format, the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge in 4-1/2 inch by 4-1/2 inch satin chrome, and the Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge in 5 inch by 4-1/2 inch steel with a satin chrome finish. Both are heavy duty and mechanical only, with no through-wire path.
21) I need the door to self-close. Does the Hager BB1279-ETW do that, and what does if not?
The BB1279-ETW is a ball bearing hinge with two ball bearings and a non-rising removable pin; closing force comes from a separate closer. When the closing force needs to live in the hinge itself, the Stanley Security 2060R is a full mortise spring hinge with square corners in 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. It provides the spring action but does not carry a conductor for electrified hardware.
22) Is there a non-ferrous alternative to the steel Hager BB1279-ETW hinge?
The BB1279-ETW is built from steel with a steel pin. For an opening where a non-ferrous base is required, the McKinney T2314 is a non ferrous hinge, standard weight, 5 knuckle, rated medium duty, which matches the BB1279-ETW on knuckle count and duty level while changing the base material. It is a mechanical hinge, so an electrified opening still needs a separate power transfer device.
23) Can I use a hinge with a non-removable pin instead of the Hager BB1279-ETW on an out-swinging exterior door?
The BB1279-ETW uses a non-rising removable pin with button tip and plug. When the security requirement calls for a pin that cannot be pulled from the outside, the Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge pair with a non-removable pin, and the Deltana DE44R5TA is a 4 inch by 4 inch steel security hinge pair with a 5/8 inch radius. Neither carries wire, so an electrified out-swinging opening needs the power path solved elsewhere.
24) Is the Hager BB1279-ETW steel or brass, and will it hold up in a healthcare or school corridor?
Steel leaves with a steel pin. That's the standard commercial substrate for interior openings and it takes the abuse of institutional traffic within its medium duty rating. The two ball bearings are what keep it quiet and turning smoothly under a door closer. For exterior or wash-down openings where corrosion is the concern, steel is the wrong base material and you want a non-ferrous hinge instead, such as the McKinney T2314 non-ferrous 5-knuckle standard weight hinge.
25) Can the pin be pulled on the BB1279-ETW once it's wired, and does that make the door vulnerable?
The pin is non-rising and removable, with a button tip and plug, so it comes out for service without lifting under the closer. On an out-swinging exterior door that removable pin is a security consideration and you'd normally spec a non-removable pin hinge. This is a commercial-rated hinge, and on the interior electrified openings it's built for (offices, corridors, controlled access points) the removable pin is what lets you service the wiring without pulling the door.
26) Is a 3-knuckle concealed bearing hinge interchangeable with the Hager BB1279-ETW?
They are different barrel constructions. The BB1279-ETW is a 5 knuckle ball bearing hinge; the Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty, and the Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles rated heavy duty. Where a matching barrel appearance across an opening matters, count the knuckles before substituting, and note that neither Ives hinge carries a conductor for electrified hardware.
27) Does the Hager BB1279-ETW work on a double acting interior door?
The BB1279-ETW is a full mortise hinge for a single swing opening. A door that swings both directions needs a pivot instead: the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors. For a heavy weight door where the frame is pivot reinforced, the BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge, also heavy duty.
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Does the Hager BB1279-4.5X4.5-US26D-ETW-4 come with a warranty?
Absolutely. The Hager BB1279-4.5X4.5-US26D-ETW-4 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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