Mtl4525 - Solenoid Alarm Driver - Eaton Crouse-Hinds Series Instruction Manual

INM 4500/4600 Rev 12
DRAFT - 22 March 2018
6 .2 .7

MTL4525 - Solenoid Alarm driver

Single channel, switch operated with override, IIC
The MTL4525 enables an on/off device in a hazardous area (IIC gas group) 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. Short-circuit the Control input
terminals to switch the output on.
A second safe-area input (Override) is provided. When short-circuited, the Override input
will force the output to the off state; when open-circuit it has no effect.
Hazardous area
Solenoid, alarm or
other IS device
STS
MTL4525
PWR
Figure 6 .19:
Terminal
Top label for
MTL4525
1
2
8
9
10
11
13
14
Safe area
6
5
4
3
+
8
2
7
1
–
13 14
Function
Output –ve
Output +ve
Override –ve
Override +ve
Control +ve
Control –ve
Supply –ve
Supply +ve
Control
12
–
11
10
+
+
9
–
Override
20 to 35V dc
Vs+
Vs–
35