Autocall A2081-9044 Overvoltage Suppressor
The A2081-9044 Overvoltage Protector limits lightning- and power-line-induced transients on low-voltage fire alarm circuits that leave or enter a building. It is intended for DC power up to 200 mA, data communications and local energy city circuit connections. The device is epoxy encapsulated with color-coded leads and mounts in a 4 in. square electrical box.
Key Features
- Protects DC power (200 mA max), data communications and local energy city circuits
- Line-to-line and line-to-earth protection stages
- Listed as an Overvoltage Protector to UL 864 and ULC-S527
- Listed as an Isolated Loop Circuit Protector to UL 497B
- Epoxy encapsulated package
Specifications
| Continuous current rating |
200 mA maximum |
| Line-to-line voltage rating |
38 VDC / 28 VAC RMS continuous; 47 V typical clamping |
| Line-to-earth voltage rating |
45 VDC / 35 VAC RMS continuous; 56 V typical clamping |
| Series resistance |
3 ohms per line |
| Maximum current |
2000 A line-to-line and line-to-earth; 5000 A shield-to-earth |
| Dimensions |
2 7/16 in. W x 1 3/8 in. D x 1 1/16 in. H (62 x 35 x 27 mm) |
| Temperature rating |
32 to 120 F (0 to 49 C) |
| Signal leads |
Color coded, 18 AWG, 10 in. long |
| Electrical box |
4 in. square, 2 1/8 in. minimum depth |
Compatible With
- Autocall fire alarm DC power, data communication and city circuit wiring
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