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Intrinsic Safety Barriers

  • Each system features excitation, sense and signal barriers
  • Available in an enclosure for external mounting or in a chassis mount version
  • R Stahl® and Pepperl&Fuchs barriers that are approved by Factory Mutual (FM)
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Pepperl&Fuchs-barriers

Intrinsically Safe Barriers

Install these barriers in your safe area to limit the current to the hazardous environment, and insure voltage remains at an intrinsically safe level.

Part # Voltage Range Nominal Resistance Open Circuit Voltage Short Circuit
Current		 Classifications
31201:
+ Excitation 9001/01-158-390-101		 +12 VDC 55 ohm 15.8 VDC 390 mA FM approved, UL listed, CSA certified, SA, CE marked
31202:
± Excitation 9002/10-187-270-001		 ±6 VDC 46 ohm 9.3 VDC 270 mA FM approved, UL listed, CSA certified, SA, CE marked
31540:
+ Excitation 9001/01-083-442-101		 +6 VDC 26 ohm 8.3 VDC 442 mA FM approved, UL listed, CSA certified, SA, CE marked
70724:
+ Sense 9001/01-086-075-101		 +6 VDC 129 ohm 8.6 VDC 41 mA FM approved, UL listed, CSA certified, SA, CE marked
30263:
± Signal 9002/77-093-040-001		 ±6 VDC 519 ohm 9.3 VDC 20 mA FM approved, UL listed, CSA certified, SA, CE marked
31542:
RS-232 9002/77-093-300-001 		 ±6 VDC 76.6 ohm 9.3 VDC 150 mA FM approved, UL listed, CSA certified, SA, CE marked
30264:
± Sense 9002/10-187-020-001		 ±6 VDC 516.5 ohm 9.33 VDC 20 mA FM approved, UL listed, CSA certified, SA, CE marked
30266:
- Excitation 9001/00-086-390-101		 -6 VDC 30 ohm 8.6 VDC 390 mA FM approved, UL listed, CSA certified, SA, CE marked
69491:
- Excitation 9001/02-016-150-111		 ±0.7 VDC 20 ohm 1.64 VDC 150 mA FM approved, UL listed, CSA certified, SA, CE marked
69492:
+ Sense 9001/01-168-020-101		 +12 VDC 918 ohm 16.8 VDC 20 mA FM approved, UL listed, CSA certified, SA, CE marked
69493:
- Sense 9001/02-016-015-101		 ±0.7 VDC 127 ohm 1.64 VDC 15 mA FM approved, UL listed, CSA certified, SA, CE marked
72521:
+ Excitation 9001/01-199-390-101		 +16 VDC 67 ohm 19.9 VDC 390 mA FM approved, CSA certified, CE marked
30265:
+ Excitation 9001/01-086-390-101		 +6 VDC 30 ohm 8.6 VDC 390 mA FM approved, CSA certified, CE marked
221779:
+ Excitation Barrier, Z713		 +13.7 VDC 22 ohm 15.75 VDC 160 mA FM Approved, cULus, ATEX, IECEX
221663:
- Excitation Barrier, Z813		 -13.7 VDC 22 ohm 15.75 VDC 160 mA FM Approved, cULus, ATEX, IECEX
221662:
± EX Barrier, Z966		 ±10 VDC 166 ohm 12 VDC 50 mA FM Approved, cULus, ATEX, IECEX
221660:
± Signal Barrier, Z961 		 ±6.5 VDC 100 ohm 8.7 VDC 100 mA FM Approved, cULus, ATEX, IECEX
221661:
± Sense Barrier, Z964		 ±10 VDC 1000 ohm 12 VDC 50 mA FM Approved, cULus, ATEX, IECEX

Resources/Downloads

Title Download Email
Intrinsic Safety Barriers Catalog Page Download Email
Explosive Environment Equipment Policy Download Email
Explosive Environment Solutions Download Email
Hazardous Atmospheres Download Email

Title Version Revision Download Email Category Archived
Intrinsic Safety Barrier Instruction Sheet A Download Email No

Title Download Email
Hazardous Area Classification Questionnaire Download Email

Title View Download Email Category
ScaleTalk: What are Hazardous Areas? View Download Email

Parts

Stahl Barriers #1: For models with ± 5 Volt excitation (10 volt)

Part # Description List Price Cart/Quote
31202 9002/10-187-270-001, ± excitation barrier

Consult
30264 9002/10-187-020-001, ± sense barrie

Consult
30263 9002/77-093-040-001, ± signal barrier

Consult
109663
DIN rail mounted kit #1 (includes 31202, 30264, 30263)

Consult

Barrier Kit #2: (For models with + 10 Volt excitation)

Barrier Kit #3: (For models with + 5 Volt excitation)

If sense leads are for the above, use the following:

Miscellaneous Barriers:

Pepprl-Fuchs Barrier Kit #1 for multiple load cell applications:

Pepprl-Fuchs Barrier Kit #2 for single load cell applications:

Options

Part # Description List Price Cart/Quote
33531 Rail,DIN 6" Length 35mm Width x 7.5mm High

List Price: $15.00
35815 LIT, Manual IS Barrier Instruction Sheet

List Price: $15.00
110424 Enclosure Assy,IS Barrier FRP Enclosure, Din Rail, 2 Cord Grips Grounding Material *** Barriers Not Included ***

List Price: $295.00
22828 Terminal Block,Grounding Universal DIN Rail Mounted

List Price: $25.00
42219 Fuse,IS Barrier 160mA for Stahl barriers

List Price: $15.00
208123 Isolator, Barrier Mount Din Rail Mounting Clips To Isolate Ground

List Price: $5.00