Trine BZ-12 12DC Piezo Buzzer...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$32.96

Trine BZ-12 12DC Piezo Buzzer

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Model: BZ-12

In Stock (leaves warehouse same day if ordered before 3pm ET)

$32.96
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Trine BZ-12 12DC Piezo Buzzer

Piezo Buzzer for "Standard Models"

• BZ-12: Audible buzzer for 12DC power
• BZ-24: Audible buzzer for 24DC power

Piezo Buzzer for “LC Models”
• BZ-6: Audible buzzer for 6DC power.

Installation and resources

BZ-12/BZ-24 Dimensions (PDF)

Manufacturer Resources

Product Specs

Series:
BZ-Series
Product Group:
Electronic Access Controls
Product Subgroup:
Electric Strikes
Product Type:
Electric Strikes
Subcategory:
Electric Strikes
Commercial/Residential:
Commercial
Electronic:
Yes
Lock Type:
Mortise or Cylindrical
Outdoor Rated:
No
Power:
6/12/24 DC
Fire Rating:
Yes
Product Category:
Electronic Access Controls
Department:
Door Hardware

Trine BZ-12 – Frequently Asked Questions

1) What does the Trine BZ-12 piezo buzzer actually do on an electric strike?
The BZ-12 is an audible buzzer that mounts to a Trine electric strike so the person at the door hears a tone while the strike is released. It runs on 12VDC power. On an apartment entry or a receptionist-controlled door, that buzz is the cue to push, so the door doesn't relock before the visitor reaches it. It's an accessory for the strike, not a strike itself.
2) Which Trine buzzer do I order, BZ-6, BZ-12 or BZ-24?
Match the buzzer to the voltage feeding the strike. BZ-12 for 12VDC and BZ-24 for 24VDC, and both go on Trine standard model strikes. BZ-6 is the 6VDC buzzer and it is the one for Trine LC model strikes. All three are orderable, so check the transformer or power supply output before you pick, since the wrong voltage buzzer either won't sound or gets overdriven.
3) Can I use the Trine BZ-12 buzzer on an exterior gate?
The BZ-12 is not outdoor rated, so an exposed gate is outside what it is built for. For gate work, the Camden CX-ED1959 Series is an outdoor rated electric gate strike. The BZ-12 suits interior commercial openings on 12DC power.
4) What is the difference between the Trine BZ-12 buzzer and an electric strike like the Von Duprin 4211?
They are not alternatives to each other. The Trine BZ-12 is an audible piezo buzzer running on 12DC power, an accessory that signals when a door is released. The Von Duprin 4211 32D is an electric strike for cylindrical locks with field-selectable 12/24 VDC operation, Grade 1 and fire rated, and it is the device that actually holds and releases the latch. A buzzer does not release a door on its own, so an opening that needs release hardware needs a strike; the buzzer adds the audible cue alongside it.
5) I need an audible signal on a 24 volt access control door - does the BZ series cover that or do I need a different part?
The BZ series covers it. The Trine BZ-24 is the audible buzzer for 24DC power, the companion to the BZ-12 for 12DC, and both are the buzzers for Trine standard model strikes. For a 6 volt circuit the BZ-6 is the buzzer for LC models. Voltage is the selection: match the buzzer to the DC voltage the strike circuit runs at.
6) Can I add a buzzer to my Trine strike later, or does it have to be ordered with it?
The BZ series is a separate piezo buzzer component, ordered by voltage, so it can be added to a Trine standard model strike (BZ-12 or BZ-24) or an LC model (BZ-6) as its own line item. What you need to confirm on your side is the DC voltage at the strike, since that is the only thing that selects the part.
7) Does the Trine BZ buzzer work with mortise locks or only cylindrical?
Both. The BZ series is used with strikes serving mortise or cylindrical locksets, so the lock type on the door doesn't drive the buzzer choice. Voltage does.
8) Do I need a separate power supply for the Trine BZ-12 buzzer?
The buzzer runs on DC power, 12VDC for the BZ-12, and is powered from the same low voltage DC that operates the strike. So plan the door's power supply around the strike's draw plus the buzzer, and keep the whole circuit on one voltage: a 24VDC supply pairs with the BZ-24, not the BZ-12.
9) We are standardizing a facility on one strike platform - which peers cover both mortise and cylindrical locks the way the BZ series supports both lock types?
The Trine BZ-Series buzzer is used with mortise or cylindrical lock types. On the strike side, the Von Duprin 6400 32D is a Grade 1 modular strike for mortise or cylindrical locks, fail-secure, in satin stainless steel, and the Hager 2930 is a fire rated Grade 1 strike for cylindrical and mortise locks with 12/24VDC dual voltage. For a mortise-only standard, the Securitron MUNL Series Mortise UnLatch is a Grade 1 fire rated strike, and the Von Duprin 6210 is a mortise strike at 24 VDC fail-secure with UL 10C fire rating.
10) Which electric strikes have a latch monitor built in, so I do not need to add a separate signaling device?
Several peers carry sensing or monitoring on board. The Dortronics 3300 Series is an electric strike with a latch bolt sensing switch, 12/24VDC, with a strike plate for ANSI prep at 4-7/8 in x 1-1/4 in. The Hager 2945 is a fire rated rim exit strike with field selectable fail safe/fail secure and a latchbolt monitor. The Camden CX-ED1799L-8 is a fire rated dual monitor Grade 1 strike supplied with 8 faceplates. Those give an electrical signal back to the panel; the Trine BZ-12 piezo buzzer instead gives an audible cue at the door on 12DC power, so the two solve different halves of the same problem.
11) Is the Trine BZ-12 an accessory kit like the HES 1500 or HES 1600 parts?
They are all add-on parts rather than complete strike bodies, but they are not the same thing. The HES 1500 and HES 1600 offerings are accessories for the HES 1500 Series and 1600 Series Grade 1 fire rated strikes. The Trine BZ-12 is a specific component - a piezo buzzer for Trine standard model strikes, supplied for 6DC, 12 VDC or 24 VDC circuits. Match the buzzer to your DC voltage rather than to a faceplate or bracket part number.
12) What is a simpler strike option for an aluminum storefront jamb where I just need release, not monitoring?
For aluminum jambs, the Adams Rite 7100 Series takes a flat faceplate at 1-1/4 in x 4-7/8 in, and the Adams Rite 7160 uses the same 1-1/4 in x 4-7/8 in faceplate size. For hollow metal and wood jambs, the Adams Rite 7170 uses that faceplate size as well. Another straightforward choice is the RCI 15BS economy strike for special offset latch entry with fail-secure operation. None of those three Adams Rite models or the RCI 15BS is fire rated, so keep them off rated openings.
13) Is there a strike option that avoids cutting the frame?
The Locknetics NC450 US32D is a no cut electric strike, which is the one in the set aimed at avoiding frame prep. Within the Locknetics range, the MDS100 US32D and the MS100 US32D are both heavy duty strikes, and the CS450-32D is from the CS Series. Frame prep is a strike question; the Trine BZ-12 piezo buzzer mounts as an audible add-on on the 12DC circuit either way.
14) The opening is a pair of doors - what changes in the strike selection?
A double door usually needs hardware built for it. The Rockwood electric strike for double doors uses a 3/4 keeper and is Grade 1 and fire rated, from the 310-1 Series. The Alarm Controls AES-100 is a Grade 1 heavy duty strike for openings that take hard use. The Trine BZ buzzers are the audible accessory in 6DC, 12 VDC and 24 VDC and are chosen by circuit voltage rather than by leaf count.
15) Is the Trine BZ-12 buzzer rated for commercial buildings?
It's a commercial grade door hardware component, intended for commercial access control openings rather than residential use. Typical placement is a multi-family entry, an office lobby, or any door where someone releases the strike remotely and the visitor needs to hear it.
16) Does a low profile strike with multiple faceplates replace the need for a Trine buzzer?
No, they answer different needs. The Camden CX-ED1689L-4 is a fire rated universal low profile strike supplied with 4 faceplates, which solves frame fit across several prep types. The Trine BZ-12 is a piezo buzzer for 12DC power, an audible signal at the door, and it is electronic hardware rather than a keeper. Choosing a strike with more faceplates does not add an audible cue, and adding the buzzer does not change how the strike fits the frame.
How fast can I get the Trine BZ-12 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 Trine BZ-12 come with a warranty?
Absolutely. The Trine BZ-12 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 Trine BZ-12?
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
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