INM 5500 Rev 11
35
6 .2 .6
MTL5525 - Solenoid Alarm driver
Single channel, low current, loop powered, IIC
The MTL5525 enables an on/off device in a hazardous area (IIC gas group) to be controlled
by a switch or voltage change 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. Similar in function to the MTL5521, this module provides
lower power output and corresponding reduced safety description.
6
5
4
3
2
1
7
8
9
10
11
12
13
14
Solenoid, alarm
or other IS device
20 – 35Vdc
–
+
+
–
Hazardous area
Safe area
Terminal
Function
1
Output –ve
2
ve
11
Supply –ve
12
ve
Figure 6 .15:
Top label
for MTL5525
