MTL Instruments / Eaton / Martek 
Model: MTL7789+ 
Dual-Channel Shunt-Diode Safety Barrier 




Martek Marine MM89 Safety Barrier Bulksafe Water Ingress Detection System
Crouse-Hinds MTL7700 DIN-rail Mounting Passive Barrier



The MTL7789+ is a dual channel passive barrier designed for hazardous area applications. It offers flexibility with its 
choice of relay or solid state outputs and is suitable for switch inputs with low current. The barrier provides safe 
operation in hazardous environments and is easy to install. It is widely used in various industries, including chemical 
processing, oil and gas, power generation, mining, and more.

It is part of the Bulksafe range by Martek Marine and is used to protect critical areas like engine rooms and cargo 

holds from flooding. The MM89 is durable, easy to install, and offers enhanced safety for vessels.

Temperature Range: -20°C to +60°C
U₀ (Output Voltage): 28V
I₀ (Output Current): 93mA
Um (Maximum Voltage): 250V




Marine Store Spare.




** Have some cosmetic issue: Terminal body damage or missing.

Please must check all pictures.
 




Have some marks and scratches due to old stock. 


© All the pictures are Organic and this part is physically in our stock.






Condition and Details:

This is a used item in normal condition.
Not In the Original Packing
No Accessories / Cables or probe (only what showing in actually given pictures and in the description).




Old Stock.






Shipping:
Usually, we ship same business day, subject to clear funds into our account 
Standard order processing time is 2 business days 
Item will be packed as per International Standard, 
International Orders: DHL / SingPost / EMS 
 

* Expedited shipping is available for an extra fee.
* International buyers pay all custom, duties, taxes & brokerage fees at their end
 
Warranty and Returns:
Warranty:

30 DAYS Money Back or Replacement, buyer pays return shipping


Product Returns:

Returns:
Return 
to Base Warranty, Any type of power failure/burn / physical damage / tempered seal will void the warranty.
 







Payment:
Payment Methods:

PayPal
Credit Cards  
Wire-transfer: Kindly contact us for payment instructions

International buyers without PayPal: Kindly contact us before bidding
                          
About Us:
We deal in Semiconductor & Wafer Handling Parts/Components/machinery and types of equipment. A Verity of Industrial Automation Equipment and Parts.

Industrial PCs, PLCs, HMI, Controllers, and Sensors.
Industrial robotics, Data Acquisition, and Test & Measurement.  
Industrial Single Board Computers.
Marine Parts / Equipments.
Oil & Gas and offshore station.
Lab and Research Equipments.

We Source, We Refurbish, We Service and We also Repair …please contact for any further detailed inquiries.