The ANWETECH AT-BL201 Weatherproof Outdoor 24VDC Fire Alarm Bell is designed to provide clear audible alarm signaling in fire alarm and emergency notification systems. It can be connected to a 24VDC fire alarm control panel, conventional alarm circuit, sprinkler alarm system or other low-voltage alarm output to warn occupants during a fire or emergency condition.
With a 20–28VDC non-polarized input, low power consumption and minimum 80 dB(A) sound level at 1 meter, the AT-BL201 is suitable for fire alarm systems, general signaling systems and burglar alarm systems. The aluminum cover provides a strong and durable appearance for commercial, industrial and building fire safety applications.
For outdoor or weather-exposed installation, a suitable weatherproof mounting method or back box should be confirmed according to the project requirement.
| Item | Specification |
|---|---|
| Model | AT-BL201 |
| Product Type | Conventional Fire Alarm Bell |
| Voltage Range | 20VDC to 28VDC |
| Polarity | Non-polarity input |
| Rated Voltage | 24VDC |
| Power / Current Consumption | 1W, 38mA @ 24VDC max. |
| Standard | EN54-3 |
| Sound Level | 80 dB(A) @ 1 m min. |
| Service Use | Fire alarm, general signaling, burglar alarm |
| Environment Type | Type A |
| Input Terminal Wire Gauge | 0.28 mm² to 1.5 mm² |
| Operating Temperature | -10°C to +55°C |
| Operating Humidity | 10% to 93% RH, non-condensing |
| Cover Material | Aluminum |
| Dimensions | 150 mm × 50 mm, D × H |
| Weight | Net: 342 g; Gross: 395 g |
| Installation | Wall-mounted |
The AT-BL201 fire alarm bell is designed for 24VDC fire alarm circuits. The wiring input is non-polarized, making installation easier and reducing wiring mistakes during field connection.
When connecting multiple fire alarm bells to one notification circuit, the total current consumption of all devices must not exceed the fire alarm control panel output capacity. Voltage drop should also be considered according to cable length and wire resistance. For longer cable runs, a thicker wire size can help reduce voltage drop and ensure the last device operates within its rated voltage range.
This product is an audible alarm notification device. It does not include a relay output.
The AT-BL201 24VDC fire alarm bell can be used in fire alarm and emergency notification systems where a clear audible warning signal is required.
Typical applications include:
