The SigCom AMH-120G is an amplified speaker for hazardous areas, powered by 120 VAC. It belongs to SigCom’s AMH Series of high-output, continuous-duty amplified speakers. The grey unit is approved for indoor and outdoor use.
Hazardous-location ratings matter here, so be precise. The AMH Series is approved for Division 2 locations — not Division 1. Specifically, it suits NEC Class I, Division 2, Groups A, B, C, and D. It also covers Class II, Division 2, Groups F and G, plus Class III areas. Furthermore, the series is designed, tested, and approved for Type 3R applications.
SigCom AMH-120G operation
Connect the speaker to a 25 or 70 Vrms speaker circuit. The level is user-selectable with an onboard jumper — no additional modules needed. Likewise, a second jumper adjusts output ±3 dB. That produces a maximum SPL of 104 or 107 dBA on axis at 10 feet. The audio input is AC coupled for use with DC-supervised audio circuits.
Each unit pairs a rugged speaker cone with a spun aluminum projector. In addition, the amplification and power management sit inside a die-cast aluminum housing. Powder coat paint plus dust and moisture gaskets seal that housing.
Key specifications
- Power input: 115 VAC nominal, 260 mA maximum
- Audio input: 25 or 70 Vrms, jumper selectable; 30 VDC maximum supervisory voltage
- Output: 104 dBA (Normal) or 107 dBA (Boost) at 10 feet
- Hazardous locations: Class I Div 2 Groups A–D; Class II Div 2 Groups F–G; Class III
- Connections: rising block terminal strip with in-out wiring capability
- Wire entry: 1/2″-14 NPT threaded hole
- Size: 9″ W × 14″ H × 10″ D; weight 5.5 pounds
- Listings: UL and C-UL
- Related models: AMH-24G and AMH-24R (24 VDC versions)
Typical applications include emergency warning, plant evacuation, process control, and public address in harsh, high-noise areas. However, note one listing detail. SigCom’s datasheet identifies the 24 VDC models (AMH-24R, AMH-24G) as the versions UL listed and approved for fire alarm systems.
Order the SigCom AMH-120G from Life Safety Consultants
Unsure whether your area classification allows this speaker? Call 1-888-557-0558, or email sales@lifesafetycom.com.
For more information, contact the Life Safety Consultants team at (888) 557-0558, or email us at: sales@lifesafetycom.com
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Additional information
| Weight | 5.5 lbs |
|---|---|
| Dimensions | 9 × 14 × 10 in |
| Condition | New |
| Manufacturers | SigCom |
| Part Type | Speaker |
| Compatible Panels | Standalone — no fire alarm panel required, connects to any audio source |
| Cross Reference | AMH-24G, AMH-24R |
| Voltage | 120V AC, Color: Gray, Hazardous Location Rating: Class I/II Division 1, Series: AMH (hazardous location) |
