6 .2 .5
Single channel, powered, logic drive with phase reversal
The MTL5524 enables an on/off device in a hazardous area to be controlled by a volt-free
contact or logic signal in the safe area. It can drive loads such as solenoids, alarms, LEDs and
other low power devices that are certified as intrinsically safe or are classified as non-energy-
storing simple apparatus.
STS
MTL5524
PWR
Figure 6 .14:
Top label
for MTL5524
34
MTL5524 - Solenoid Alarm driver
Hazardous area
+
–
Solenoid, alarm
or other IS device
Terminal
Function
1
Output –ve
2
Output +ve
8
Phase reversal link
9
Phase reversal link
11
Control –ve
12
Control +ve
13
Supply –ve
14
Supply +ve
Safe area
6
7
5
8
4
9
3
10
2
11
1
12
13
14
20 to 35V dc
‡ use link to reverse phase
‡
Control
Vs–
Vs+
INM 5500 Rev 11