MR380-2 Microswitch DIN Rail Mount Controller


MR380-2 Series DIN Rail Mount Microswitch Controller

MR380 Fiber Optic Signaling Sensors are used anywhere where conventional electromechanical controls cannot be used – both harsh and hazardous environments. The MR380-2 Controller Module is the active optical and electrical interface for the MR386 series ZapFREE®  Microswitch.



Functional States Applies to MR386 Microswitch Only
Light Conducts
(NO Microswitch plunger is Down or NC Microswitch plunger is Up)
Red LED is ON
Digital 5V and 24V Outputs=HI
NC contacts=Closed, NO contacts=Open
No Light
(NO Microswitch plunger is Up or NC Microswitch plunger is Down)
Red LED is OFF
Digital 5V and 24V Outputs=LOW
NC contacts=Open, NO contacts=Closed
Digital Outputs
5V Logic 5 VDC/2k Ω Load Max
24V Logic 24 VDC/2k Ω Load Max
Relay Contacts 2x Form C (COM-NO-NC)
Switching Power Rating 60 W / 62.5 VA
Contact Material AgNi, Gold Covered
DC Rating 75 V @ 0.75A; 24 V @ 2A
AC Rating 50 V @ 1A; 24 V @ 2A
Operating Wavelength 1300nm, Class I Eye Safe
System Loss Budget 13 dB
Maximum Distance Distance is a function of the user’s system loss budget which is the total round-trip loss of all optical link components – sensor(s), connectors, splices and cable segments.
Consult Application Note AN118 for more information.
Contact Micronor for longer distance applications.
Interface NOTE: Electrical connections shall not exceed 3 meters.
Electrical 10-pin Screw Terminal, 30-14 AWG (Phoenix Mating Plug 1803659)
Optical LC-Duplex 62.5/125μm OM-1 or 50/125μm OM-2 Multimode Fiber
Power Supply +24 VDC, <80 mA input
Explosive Atmosphere Inherently Safe Optical Radiation (Class 1)
EX Classification Controller shall be installed in non-hazardous location only
Power supply to Controller shall be current limited to 200mA or less
IECEx Test Report GB/CML/ExTR 16.0105.00/00
IEC Ex EPL Mb/Gb/Gc/Db/Dc
NEC Exempt
Environmental Performance
Temperature/Humidity -5°C to +55°C (23°F to +131°F), 0-95% RH, Non-Condensing
Ingress Protection IP50
Physical Attributes
Mounting 35mm DIN Rail
Housing 11.4 x 8.9 x 3.2 cm (4.5 x 3.5 x 1.25 inches)
Weight 230 g (8.1 oz)

Specifications subject to change without notice


  • DIN rail mountable module
  • Ex rated Inherently Safe Optical Radiation
  • Controller is installed outside the hazardous area
  • Interference-free transmission up to 4000 meters
  • Universal controller supports both 50/125 and 62.5/125 multimode fiber sensor links
  • Depending on sensor type, multiple sensors can be optically wired in series


  • DPDT relay contacts
  • Digital status outputs, 5V and 24V
  • Depending on sensor type, digital outputs and relay implement know default failure state

Ordering Information