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Instructions - Installation
G-Barrier
Power Barrier for Hazardous Locations
Associated apparatus providing intrinsically safe power to hazardous locations using the
entity parameter concept. For professional use only.
Not approved for use in explosive atmospheres or hazardous locations.
See Approvals on page 3 for approval information.
Important Safety Instructions
Read all warnings and instructions in this manual
before using the equipment. Save these
instructions.
26A364 IS Power Barrier
3A5056B
EN
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Table of Contents
Summary of Contents for Graco G-Barrier
- Page 1 Instructions - Installation G-Barrier 3A5056B Power Barrier for Hazardous Locations Associated apparatus providing intrinsically safe power to hazardous locations using the entity parameter concept. For professional use only. Not approved for use in explosive atmospheres or hazardous locations. See Approvals on page 3 for approval information.
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Page 2: Table Of Contents
Graco Standard Warranty ....18 Graco Information ......18... -
Page 3: Approvals
Approvals Approvals For connection to: CLASS I, DIVISION 1, GROUP D (USA & CANADA) CLASS I, ZONE 0, [AEx ia Ga] IIA (USA) 0°C ≤ Ta ≤ 54°C FM18US0213 FM18CA0102 II (1) G [Ex ia Ga] IIA 0°C ≤ Ta ≤ 54°C IECEx FMG 18.0022 FM18ATEX0053 2575... -
Page 4: Warnings
Intrinsic Safety. This includes DC voltage meters, ohmmeters, cables, and connections. • Do not install the G-Barrier, which is non-intrinsically safe, in a hazardous area, as defined in Article 500 of the National Electrical Code (USA) or your local electrical code. -
Page 5: Overview
Overview Overview The G-Barrier associated apparatus power supply has • Three independent outputs three independent outputs with separate entity parame- ters. The output barriers are all the trapezoidal type as • Feedback controlled for high efficiency and sta- defined in EN 60079-25 Annex C. Additional features of... -
Page 6: Installation
• The G-Barrier does not provide galvanic isolation from earth or between non-intrinsically safe and • Do not connect the non-intrinsically safe terminals intrinsically safe connections... - Page 7 Non-Hazardous Location Class 1, Division 1, Group D, (US and Canada) Class 1, Zone 0 or Zone 1, Group IIA, (US and Canada) Zone 0 or Zone 1, Group IIA (ATEX and IECEx) G-Barrier To other hazardous locations . 1: Typical Hazardous Location Installation...
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Page 8: Validating The Field Apparatus Entity Parameters
Installation Validating the Field Apparatus For an installation to be valid and safe, use the following calculation methods. All calculation comparisons must Entity Parameters be true: The entity parameters of the barrier outputs must be Parameter Zones Divisions matched to the entity parameters of the field apparatus Voltage ≤... -
Page 9: Mounting And Dismounting To Din Rail
Installation Mounting and Dismounting to DIN Rail This device is intended to be mounted on a 35 mm stan- dard DIN rail. The DIN rail mounting clip on the device is spring-loaded. No tool is needed to install or remove the device. -
Page 10: Grounding
If the DIN rail is bonded to the system ground, then the barrier connection through the DIN rail is adequate for system ground. NOTE: Always bond the G-Barrier to the ground screw. The equipment must be grounded to reduce the risk of static sparking and electric shock. Improper grounding can cause electric shock. - Page 11 Installation NON-HAZARDOUS LOCATION HAZARDOUS LOCATION TO FIELD APPARATUS CLASS 2 TO FIELD APPARATUS POWER SUPPLY TO FIELD APPARATUS . 5: Grounding, Example 2 3A5056B...
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Page 12: Wiring The Power Input Connector
Installation Wiring the Power Input Wiring the Power Output Connector Connectors The output connectors all have power on pin 2. Pins 1, 3, and 5 are all connected to ground. Pins 4 and 6 are not connected. NOTE: If you are making your own cable connections, the wire colors may differ. -
Page 13: Airflow
Installation Airflow For best performance, the installation must allow for air- flow through and around the barrier. . 9: Airflow 3A5056B... -
Page 14: Troubleshooting
Compare to voltage from graph. See Performance, page 15. Parts Part Description 26A507 Circuit, IS power barrier 116343 Ground screw 19A612* Power input connector, six position 17T870* Power input connector, two position * Part of G-Barrier Power Connector Kit 25E511 3A5056B... -
Page 15: Performance
Performance Performance This trapezoidal barrier maintains a relatively constant output voltage until it reaches an output current of 125 mA. From this point, it resembles a linear barrier until it approaches an output current of 250 mA. Circuitry in the barrier reduces the output voltage to protect both the internal fuse and any associated apparatus that may be shorting out. -
Page 16: Dimensions
Dimensions Dimensions . 10: Dimensions of the G-Barrier 3A5056B... -
Page 17: Technical Specifications
Technical Specifications Technical Specifications Metric Electrical Parameters Maximum input voltage 24 VDC Minimum input voltage 12 VDC Maximum input power 24 W Power supply type Class 2 Environmental Parameters 32 °F ≤ Ta ≤ 129 °F 0 °C ≤ Ta ≤ 54 °C Ambient temperature range Humidity 0% to 90%... -
Page 18: Graco Standard Warranty
With the exception of any special, extended, or limited warranty published by Graco, Graco will, for a period of twelve months from the date of sale, repair or replace any part of the equipment determined by Graco to be defective.