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Ex i isolators

Ex i isolators offer a wide choice and are designed to make your life easier
Point-to-point connections with ISpac isolators are a proven solution that is easy to implement. ISpac isolators are particularly easy and inexpensive to install. Only R. STAHL allows you to install all devices individually, in groups or in a pac carrier.

To make your life easier, R. STAHL's ISpac isolators use a pac bus: All you need to do is snap the device onto the DIN rail and pac bus and you're already connected to the auxiliary power supply; error messages are then very easy to read.

Our Ex i isolators are also designed to be user-friendly in operation: Two-channel modules for all functions save space, and the three-way reporting of wire breakage and short circuiting speeds up diagnostics. They also boast an impressively long service life of 15 years. And their certification for use in ships' engine rooms bears testimony to their robust construction.

R. STAHL's ISpac isolators are designed with functional safety in mind. These products conform to SIL 2 and SIL 3, including devices with trip amplifier function.

  • Compact: Two-channel modules for all functions
  • Time-saving system for wiring: pac bus or pac carrier
  • Broad range of applications: Can be used for SIL applications up to SIL 3
  • HART-capable

Filter product lines

Select the product lines that are applicable to your intended use.

18 Series (170 Products)

Ex i Power Supply Series 9143

  • For the intrinsically safe supply of power to three- or four-conductor transmitters, solenoid valves, light barriers and controllers
  • stable, adjustable output voltage
  • extensive portfolio with either DC or AC auxiliary power

Frequency Transmitter Series 9146

  • Compact Ex i frequency transmitter for monitoring rotational speed in hazardous areas
  • limit value analysis + frequency-current conversion + pulse divider function over a width of just 17.6 mm
  • parameterization made easy by "ISpac Wizard" software

Vibration Transducer Supply Unit Series 9147

  • Space-saving two-channel variant reduces installation costs
  • easily accessible rotary switch makes adjustment simple
  • can be used up to SIL 2 (IEC 61508)

Transmitter Supply Unit Series 9160

  • Can be used universally for two- and three-conductor transmitters and mA sources (four-conductor transmitters)
  • high degree of accuracy
  • standard variant can be used up to SIL 2, special variant up to SIL 3 (IEC/EN 61508)

Transmitter Supply Unit with Limit Value Series 9162

  • Compact limit value switch with two configurable limit values and output of 4 to 20 mA
  • bidirectional HART transmission
  • can be used up to SIL 2 (IEC/EN 61508)

Isolating Repeater Input Series 9163

  • For four-conductor transmitters (bidirectional transmission) or power sources
  • no Ex i output parameters – easy connection to sources
  • can be used up to SIL 2 (IEC/EN 61508)

mA-Isolating Repeater Series 9164

  • For installation in Zone 1 or Zone 2 hazardous areas (depending on the variant)
  • inputs can be intrinsically safe (Ex i), feature increased safety (Ex e) or be non-Ex
  • space-saving, 12-mm wide design

Isolating Repeater Series 9165

  • Compact one- and two-channel Ex i output isolating repeater
  • wire-breakage and short-circuit monitoring system, which can be disconnected and features a signalling contact
  • can be used up to SIL 2 (IEC/EN 61508)

Isolating Repeater Loop Powered Series 9167

  • Compact, loop-powered one- and two- channel Ex i output isolating repeater
  • suitable for fire and gas detectors
  • can be used up to SIL 3 (IEC 61508)

Switching Repeater Series 9170

  • Can be used up to SIL 2 (IEC/EN 61508)
  • wire-breakage and short-circuit monitoring system, which can be disconnected and issues alerts
  • optional line error transparency: The device notifies the control system directly of any field-side line faults via the signal output.

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