NOTIFIER NBG-12L — dual-action manual fire alarm pull station with an SPST normally-open switch, screw terminal connections and a key lock.
The NBG-12 Series provides a non-coded alarm initiating input signal to conventional fire alarm control panels such as the SFP Series, and to XP Transponders — it is a conventional device, not an addressable one. Pushing in and then pulling down on the handle activates the normally-open alarm switch; the handle latches in the down position, the word “ACTIVATED” appears at the top in bright yellow, and a portion of the handle protrudes at the bottom as a visible flag. Resetting is a matter of inserting the supplied key, twisting a quarter turn and opening the front cover, which lets the spring-loaded handle return to its original position; the alarm switch then resets by hand or automatically when the cover is closed. Cover, backplate and operating handle are all moulded of durable polycarbonate, with white lettering and trim, and the red colour matches System Sensor’s SpectrAlert Advance horn/strobe series. The station can be opened for inspection and maintenance without initiating an alarm.
Specifications
| Type |
Non-coded conventional manual fire alarm pull station, dual action |
| Switch |
SPST normally open; screw terminal connections; key lock |
| Switch contact ratings |
Gold-plated; rating 0.25 A @ 30 VAC or VDC |
| Terminals |
Four-position terminal strip moulded into backplate, Phillips combination-head captive 8/32 screws, accepts field wiring up to 12 AWG (3.1 mm²); terminal numbers moulded into backplate |
| Dimensions (station) |
H 5.500 in. (13.97 cm) x W 4.121 in. (10.467 cm) x D 1.390 in. (3.531 cm) |
| Construction |
Cover, backplate and operation handle moulded of durable polycarbonate; red with white lettering and trim |
| Pull force |
Meets ADA 5 lb. maximum pull-force |
| Standard |
Meets UL 38, Standard for Manually Actuated Signaling Boxes |
| Mounting |
Surface mount with SB-10 or SB-I/O; or semi-flush to a standard single-gang, double-gang or 4 in. (10.16 cm) square electrical box |
| Accessibility markings |
Braille text on the finger-hold area and across the top of the handle; white directional arrows for non-English-speaking users |
| Agency listings |
C(UL)US Listed file S692; CSFM 7150-0028:199; FM Approved; MEA 67-02-E; Lloyd’s Register type approved file 93/60141 (E3); U.S. Coast Guard approved (AFP-200, NFS-640, AFP1010/AM2020 combinations) |
| Patents |
U.S. Patent No. D428,351; 6,380,846; 6,314,772; 6,632,108 |
| Country of origin |
Made in the U.S.A. |
Installation notes
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Conventional, not addressable: the NBG-12L is a dry-contact initiating device for an IDC. If the panel is a NOTIFIER intelligent system that must report the exact station location, the addressable NBG-12LX is the correct part — see data sheet DN-6726.
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Key versus hex lock: the NBG-12L is the key-lock model and ships with keys 17021 (set of two). The NBG-12 is the otherwise identical hex-lock model, supplied with the 17007 9/64 in. hex key.
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Backbox choice: semi-flush mounting suits a single-gang, double-gang or 4 in. square box — the backplate overlaps a single-gang cutout by 1/2 in. (1.27 cm). For surface mount use the metal SB-10 or plastic SB-I/O. The BG12TR trim ring is optional for semi-flush work.
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Outdoor use is a different part: outdoor application listings apply only to the NBG-12LOB combination (NBG-12LO plus approved backbox and gasket); the NBG-12LO is not sold separately, and a plain NBG-12L is not listed for outdoor use.
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Contacts are low current: the gold-plated switch is rated 0.25 A @ 30 VAC or VDC. The 3.0 A auxiliary contact circuit published for the NBG-12 Series belongs to terminals 3 and 4 of the NBG-12LA annunciator-contact model only.
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Wiring prep: terminal screws are backed out at the factory and shipped ready to accept field wiring.
Related models
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NBG-12 — same dual-action station with SPST N/O switch and screw terminals, but hex lock instead of key lock.
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NBG-12S — single-action pull station with pigtail connections and hex lock.
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NBG-12LSP — same as NBG-12L with English/Spanish (FIRE/FUEGO) labelling.
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NBG-12LA — dual-action with key lock plus annunciator contacts (auxiliary circuit on terminals 3 and 4 rated 3.0 A @ 30 VAC or VDC).
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NBG-12LPS / NBG-12LPSP — pre-signal models providing two normally open inputs; a general alarm rocker switch inside is reached by unlocking the cover. Not FM approved.
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NBG-12LOB — key lock with outdoor application listings, supplied with the SB-I/O backbox and sealing gasket.
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NBG-12LX — the addressable version for intelligent NOTIFIER panels; a distinct device covered by DN-6726.
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SB-10 / SB-I/O / WP-10 / BG12TR — metal surface backbox, plastic surface backbox, outdoor backbox and semi-flush trim ring.
Specifications taken from the NOTIFIER data sheet “NBG-12 Series Non-Coded Conventional Manual Fire Alarm Pull Stations,” document DN-6643:A1 (04/22/08). Manufacturer specifications are subject to change without notice.
