Base B3
Product description 
The B3 base is designed for connecting the SPD-3.10 detector with NO output contacts of the relay to a four-wire AL.
Base B3 generates an output signal using relay contacts. When building a fire alarm loop on B3 bases, it is necessary to install a B7 or B9 base (B9 base with remote indicator) at the end of each AL. In such a AL, the lack of supply voltage due to a break or removal of any electronic unit from the base leads to the formation of a “Fault” notification from this AL on the FACP.
Implementation of various functions using databases:
| Base | Number of contacts | Presence of ZPOS | The presence of a relay | Relay contacts | Connection |
| B01 | 4 | - | - | - | 2-wire |
| B1 | 6 | + | - | - | 2-wire |
| B2 | 7 | - | 1 | NO | 4-wire |
| B3 | 7 | - | 1 | NO | 4-wire |
| B4 | 8 | + | 1 | NO | 4-wire |
| B5 | 8 | + | 1 | NO | 4-wire |
| B6* | 8 | - | 2 | NC,NO | 4-wire |
| B7* | 8 | - | 2 | NC,NO | 4-wire |
| B8* | 9 | + | 2 | NC,NO | 4-wire |
| B9* | 9 | + | 2 | NC,NO | 4-wire |
Specifications
Characteristic
Value
Supply voltage:
12 ± 1,8 V
The method of connecting to the FACP:
two-wire AL
Resistance between contacts "1" and "2", with the electronic unit removed:
no more than 200 kΩ
Resistance between contacts "1" and "2", when the electronic unit is installed:
no more than 2 ohms
Useful materials
| Name | Country | Comment | Open | Download |
|---|---|---|---|---|
| Manual | Ukrainian | |||
| Presentaion | ppt presentation file |
Devices with which it is used
