Product Introduction
The DLB electrical bell is used for receiving the signal from pulling device, dotting device or the control button and begin to ring as alarm or communication in the power supply circuit of 50Hz, voltage36V, 127V in the coal mine underground where is filled with explosive gas mixture of methane, coal dust and so on.
Main Parameter
Use the type
|
rated voltage
(V)
|
power
(W) |
sound intensity
(dB)
|
Bell cover
|
Ex-mark
|
Protection class
| (G") |
outside diameter of cable
(φ,mm) |
AC
DC |
36 110 220
24 36 110 220 |
≤20
|
≥85(R=2M)
|
125
|
Exd II BT6
* Exd II CT6 |
IP54
|
3/4
|
8-11
|
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