Graco G-Barrier User manual

Instructions - Installation
G-Barrier
Power Barrier for Hazardous Locations
3A5056B
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.
EN
26A364 IS Power Barrier

23A5056B
Table of Contents
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
List of Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Power Barrier Output Parameters . . . . . . . . . . . . 5
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Validating the Field Apparatus Entity Parameters 8
Mounting and Dismounting to DIN Rail . . . . . . . . 9
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Wiring the Power Input Connector . . . . . . . . . . 12
Wiring the Power Output Connectors . . . . . . . . 12
Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Technical Specifications . . . . . . . . . . . . . . . . . . . . 17
Graco Standard Warranty . . . . . . . . . . . . . . . . . . . 18
Graco Information . . . . . . . . . . . . . . . . . . . . . . . . . 18

Approvals
3A5056B 3
Approvals
List of Standards
• U.S. Approval
• FM 3600:2018
• FM 3610:2018
• FM 3810:2017
• UL 60079-0:2019
• ANSI/ISA 60079-11:2014
• Canada Approval
• CSA C22.2 No. 60079-0:2019
• CSA C22.2 No. 60079-11:2014
• CSA C22.2 No. 61010-1:2012
• IECEx Certification
• IEC 60079-0:2017
• IEC 60079-11:2011
• ATEX Certification
• EN 60079-0:2018
• EN 60079-11:2012
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
CUS
2575

Warnings
43A5056B
Warnings
The following warnings are for the setup, use, grounding, maintenance, and repair of this equipment. The exclama-
tion point symbol alerts you to a general warning and the hazard symbols refer to procedure-specific risks. When
these symbols appear in the body of this manual or on warning labels, refer back to these Warnings. Product-specific
hazard symbols and warnings not covered in this section may appear throughout the body of this manual where
applicable.
INTRINSIC SAFETY
Intrinsically safe equipment that is installed improperly or connected to non-intrinsically safe equipment
will create a hazardous condition and can cause fire, explosion, or electric shock. Follow local
regulations and the following safety requirements.
• Be sure your installation complies with national, state, and local codes for the installation of electrical
apparatus in a Class I, Division 1, Group D, or Zone 0, or 1, Group IIA (as applicable) Hazardous Loca-
tion, including all of the local safety fire codes. For the United States, this includes NFPA 33, NEC 500
and 516, and OSHA 1910.107.
• Equipment that comes in contact with the G-Barrier’s intrinsically safe terminals must be rated for
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.
• The G-Barrier must be properly grounded to be effective. For proper grounding, use the ground wire
provided (or a 12-gauge minimum ground wire), and the G-Barrier’s ground must be within 1 ohm of
true earth ground. For more information, see Installation.
• Do not operate the G-Barrier module with the cover removed.
• All electrical wiring must be done by a qualified electrician and comply with all local codes and regu-
lations.
• Do not alter or modify equipment. Alterations or modifications may void agency approvals and create
safety hazards.

Overview
3A5056B 5
Overview
The G-Barrier associated apparatus power supply has
three independent outputs with separate entity parame-
ters. The output barriers are all the trapezoidal type as
defined in EN 60079-25 Annex C. Additional features of
this module include:
• Wide input power range from 12V to 24V
• Regulated first stage
• Feedback controlled for high efficiency
• Overload protection against fuse damage
• Three independent outputs
• Feedback controlled for high efficiency and sta-
ble output
• Color-coded and keyed output connector
• Temporary short-circuit protection against fuse
damage
• DIN rail mounting
• Ground bond screw
Power Barrier Output Parameters
Zones UoIoPoLoCoLo/Ro
Divisions Voc Isc PoLaCaLa/Ra
Units V mA W µH µF µH/Ohm
Value 16.4 592.2 2.82 64 2.4 76.2

Installation
63A5056B
Installation
• Do not connect the non-intrinsically safe terminals
(power rail) to any device that uses or generates
more than Um=250 Vrms or DC, unless the voltage
is adequately isolated.
• Installation in the United States must meet the
requirements of the National Electrical Code
(ANSI/NFPA 70) and Recommended Practice for
Wiring Methods for Hazardous (Classified) Loca-
tions Instrumentation Part 1: Intrinsic Safety
(ANSI/ISA-RP12.06.01).
• Installation in Canada must meet the requirements
of the Canadian Electrical Code, CSA C22.1, Part I,
Appendix F.
• For ATEX, install according to EN 60079-14 and
applicable local codes and regulations.
• For IECEx, install according to IEC 60079-14 and
applicable local codes and regulations.
• Multiple earthing of components is allowed only if a
high integrity equipotential system is realized
between the points of bonding.
• The G-Barrier does not provide galvanic isolation
from earth or between non-intrinsically safe and
intrinsically safe connections
• Install wiring associated with intrinsically safe chan-
nels A, B, C as separate intrinsically safe circuits
according to the applicable installation codes.
• The specified Ca, Co, La, Lo parameters take the
effects of combined external capacitance and induc-
tance into account. No further reduction in the spec-
ified Ca, Co, La, Lo parameters is required.
• Do not disassemble.
Do not substitute or modify system components as
this may impair intrinsic safety. Do not install equip-
ment approved only for a non-hazardous location in a
hazardous location.

Installation
3A5056B 7
Hazardous (Classified) Locations
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)
FIG. 1: Typical Hazardous Location Installation
G-Barrier
To other
hazardous
locations
Non-Hazardous Location

Installation
83A5056B
Validating the Field Apparatus
Entity Parameters
The entity parameters of the barrier outputs must be
matched to the entity parameters of the field apparatus
power inputs.
The barrier outputs are defined using the symbols Uo,
Io, Po, Co, Lo, and Lo/Ro.
The barrier outputs are alternately defined using the
divisions symbols Voc, Isc, Po, Ca, La, and La/Ra.
The field apparatus power inputs are defined using a
combination of the symbols Ui, Ii, Pi, Ci, and Li. It is pos-
sible that all parameters are not defined. In some cases
the equivalent value can be calculated. Refer to the
appropriate installation standards if this is the case.
For an installation to be valid and safe, use the following
calculation methods. All calculation comparisons must
be true:
FIG. 2: Entity Parameters
clip
Parameter Zones Divisions
Voltage Uo ≤ UiVoc ≤ Umax
Current Io ≤ IiIsc ≤ Imax
Power Po ≤ PiPo ≤ Pi
Capacitance Co ≥ Ci + Ccable Ca ≥ Ci + Ccable
Inductance Lo ≥ Li + Lcable La ≥ Li + Lcable
Inductance to
Resistance
Ratio Lo/Ro ≥ Li/RiLa/Ra ≥ Li/Ri

Installation
3A5056B 9
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.
A force of approximately 40 lbs (18 Kg-force, 180 N) is
necessary to compress the spring enough to allow the
DIN rail clip to be latched onto the rail.
The spring must be latched behind the edge of the DIN
rail to connect properly. See FIG. 3.
To remove the device from the DIN rail, pull down to
compress the spring, pull the bottom out to release it
from the rail, and lift it up off the top of the DIN rail.
FIG. 3: DIN Rail Mounting
Rail mounting
clip

Installation
10 3A5056B
Grounding
The G-Barrier must be bonded to an equipotential
grounding system capable of safely carrying any fault
currents with a total resistance from the barrier to the
grounding electrode not exceeding 1 ohm. The ground-
ing connection is not allowed to carry system supply
current in normal operation.
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. Grounding pro-
vides an escape wire for the electric current.
FIG. 4: Grounding, Example 1
HAZARDOUS LOCATION NON-HAZARDOUS LOCATION
TO FIELD APPARATUS CLASS 2
POWER
SUPPLY
TO FIELD APPARATUS
TO FIELD APPARATUS

Installation
3A5056B 11
FIG. 5: Grounding, Example 2
HAZARDOUS LOCATION NON-HAZARDOUS LOCATION
TO FIELD APPARATUS CLASS 2
POWER
SUPPLY
TO FIELD APPARATUS
TO FIELD APPARATUS

Installation
12 3A5056B
Wiring the Power Input
Connector
The input power connector, provided with the barrier, is
field-wireable with screw terminals.
Wiring the Power Output
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.
Use a Class 2 Power Supply only.
FIG. 6: Wiring Power Input Connector
ca
Red wire
Black wire
FIG. 7: Wiring When Using 16K509 or 16K615 Cables
FIG. 8: Wiring Power Output Connectors, Front View
Blue
Brown
Black
Black
1A
2A
3A
4A
5A
6A
1B
2B
3B
4B
5B
6B
1C
2C
3C
4C
5C
6C
Ground
Output
Ground
NC
Ground
NC
Ground
Output
Ground
NC
Ground
NC
Ground
Output
Ground
NC
Ground
NC
Status
Status
Status
12 - 24 V
24 W
DC
Input
HAZARDOUS
8
7
MODEL
PART NO.
SERIAL NO.
SERIES
Green
light

Installation
3A5056B 13
Airflow
For best performance, the installation must allow for air-
flow through and around the barrier.
FIG. 9: Airflow

Troubleshooting
14 3A5056B
Troubleshooting
The status lights (see FIG. 8) brighten and dim based on the output voltage of the appropriate channel.
If the light becomes dim or turns off when the field apparatus is connected, it may be drawing too much power for cor-
rect operation, or the device or cable may be shorted. Determine the fault and replace or repair parts as necessary.
The following tests can be used to validate the operation of the barrier:
Parts
* Part of G-Barrier Power Connector Kit 25E511
Parameter Procedure Valid Range
Input Voltage Check with meter 12 VDC to 24 VDC
Output Voltage with no load Check with meter 15 VDC
Output Voltage with load Check with meter Compare to current from graph. See Performance,
page 15.
Output Current with load Check with meter Compare to voltage from graph. See Performance,
page 15.
Part Description Qty
26A507 Circuit, IS power barrier 1
116343 Ground screw 1
19A612* Power input connector, six position 3
17T870* Power input connector, two position 1

Performance
3A5056B 15
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.
As the short is released, the barrier returns to linear operation, and then to constant voltage operation.
Current (mA)
Voltage (V)
Current (mA)
Power (mW)

Dimensions
16 3A5056B
Dimensions
FIG. 10: Dimensions of the G-Barrier

Technical Specifications
3A5056B 17
Technical Specifications
* Measurements are approximate.
US 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
Ambient temperature range 32 °F ≤ Ta ≤ 129 °F 0 °C ≤ Ta ≤ 54 °C
Humidity 0% to 90%
Clearance above unit* 1 in 25 mm
Clearance to side of unit* 1/4 in 6 mm
Clearance below unit* 1/2 in 12 mm
Enclosure material Aluminum, Anodized aluminum
Weight* 1 lb 1000 g
Width* 2 in 50 mm
Height* 5 in 125 mm
Depth* 4 in 100 mm

All written and visual data contained in this document reflects the latest product information available at the time of publication.
Graco reserves the right to make changes at any time without notice.
Original instructions. This manual contains English. MM 3A5056
Graco Headquarters: Minneapolis
International Offices: Belgium, China, Japan, Korea
GRACO INC. AND SUBSIDIARIES • P.O. BOX 1441 • MINNEAPOLIS MN 55440-1441 • USA
Copyright 2018, Graco Inc. All Graco manufacturing locations are registered to ISO 9001.
www.graco.com
Revision B, 2019-01
Graco Standard Warranty
Graco warrants all equipment referenced in this document which is manufactured by Graco and bearing its name to be free from defects in
material and workmanship on the date of sale to the original purchaser for use. 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. This warranty applies only when the equipment is installed, operated and maintained in accordance with Graco’s written
recommendations.
This warranty does not cover, and Graco shall not be liable for general wear and tear, or any malfunction, damage or wear caused by faulty
installation, misapplication, abrasion, corrosion, inadequate or improper maintenance, negligence, accident, tampering, or substitution of
non-Graco component parts. Nor shall Graco be liable for malfunction, damage or wear caused by the incompatibility of Graco equipment with
structures, accessories, equipment or materials not supplied by Graco, or the improper design, manufacture, installation, operation or
maintenance of structures, accessories, equipment or materials not supplied by Graco.
This warranty is conditioned upon the prepaid return of the equipment claimed to be defective to an authorized Graco distributor for verification of
the claimed defect. If the claimed defect is verified, Graco will repair or replace free of charge any defective parts. The equipment will be returned
to the original purchaser transportation prepaid. If inspection of the equipment does not disclose any defect in material or workmanship, repairs will
be made at a reasonable charge, which charges may include the costs of parts, labor, and transportation.
THIS WARRANTY IS EXCLUSIVE, AND IS IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
TO WARRANTY OF MERCHANTABILITY OR WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE.
Graco’s sole obligation and buyer’s sole remedy for any breach of warranty shall be as set forth above. The buyer agrees that no other remedy
(including, but not limited to, incidental or consequential damages for lost profits, lost sales, injury to person or property, or any other incidental or
consequential loss) shall be available. Any action for breach of warranty must be brought within two (2) years of the date of sale.
GRACO MAKES NO WARRANTY, AND DISCLAIMS ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE, IN CONNECTION WITH ACCESSORIES, EQUIPMENT, MATERIALS OR COMPONENTS SOLD BUT NOT
MANUFACTURED BY GRACO. These items sold, but not manufactured by Graco (such as electric motors, switches, hose, etc.), are subject to
the warranty, if any, of their manufacturer. Graco will provide purchaser with reasonable assistance in making any claim for breach of these
warranties.
In no event will Graco be liable for indirect, incidental, special or consequential damages resulting from Graco supplying equipment hereunder, or
the furnishing, performance, or use of any products or other goods sold hereto, whether due to a breach of contract, breach of warranty, the
negligence of Graco, or otherwise.
FOR GRACO CANADA CUSTOMERS
The Parties acknowledge that they have required that the present document, as well as all documents, notices and legal proceedings entered into,
given or instituted pursuant hereto or relating directly or indirectly hereto, be drawn up in English. Les parties reconnaissent avoir convenu que la
rédaction du présente document sera en Anglais, ainsi que tous documents, avis et procédures judiciaires exécutés, donnés ou intentés, à la suite
de ou en rapport, directement ou indirectement, avec les procédures concernées.
Graco Information
For the latest information about Graco products, visit www.graco.com.
For patent information, see www.graco.com/patents.
TO PLACE AN ORDER, contact your Graco distributor or call to identify the nearest distributor.
Phone: [phone] or Toll Free: 1-800-328-0211 Fax: [phone]