Switches Intrinsic Safety Barriers Datasheets

Dual Channel Zener Barriers -- 65800 Series
from Gems Sensors & Controls

The exceptionally compact design of Gems ™ 65800 Series units saves space and simplifies installation; especially in multiples on a common mounting plate. They provide great economy as well since no explosion-proof enclosures are needed for sensor wiring. Encapsulated construction is... [See More]

  • Application: 4-20 mA 2-wire Transmitters; Switches; RTDs; Thermocouples; Strain Gages; Load Cells; Flow Meters; Level Sensors, Pressure Switches
  • Mounting Options: Earth-Grounded Rail Mount
  • Barrier Type: Zener Barrier
  • AC or DC: DC
Dual Channel Zener Barrier -- Model SBG54803
from OMEGA Engineering, Inc.

For most non-voltage producing devices located in a hazardous area, a single zener barrier that is negative-earth-grounded can be used for intrinsic safety. Instrumentation that produces an output (signal conditioners) usually requires two barriers, one for each "floating" lead. Here, a dual-channel... [See More]

  • Application: 4-20 mA 2-wire Transmitters; Switches; Solenoid / Audible Alarms
  • Mounting Options: Din Rail Mounted (optional feature); SurfaceMount (optional feature)
  • Barrier Type: Zener Barrier
  • AC or DC: DC
Field Barrier Ex d/Ex i -- Type 3770
from SAMSON Controls, Inc.

The field barrier is suitable for operating positioners, smart. positioners using HART protocol, i/p converters, solenoid. valves, or limit switches. Upstream connection and direct attachment to intrinsically safe. field devices enable the intrinsically safe circuits of these devices. to be... [See More]

  • Application: 4-20 mA 2-wire Transmitters; Switches; Solenoid / Audible Alarms
  • Mounting Options: M20 x 1.5
  • Barrier Type: Galvanic Isolator
  • Channels: 2