Grace Engineered Products SAFESIDE R-3W2 User manual

INSTALLATION AND OPERATING INSTRUCTIONS
R-3W2
www.graceport.com
For technical questions, contact: Grace Engineered Products Inc./ 5001 Tremont Ave,
Davenport, IA 52807 / 800.280.9517 563.386.9639 (Fax)
UL APPROVED FOR:
CLASS I, DIVISION 2 HAZ LOC
CAT III & IV

R-3W2 Page 1 of 12
ClassIGroups: A (acetylene), B (hydrogen), C (ethyl-ether vapors, ethylene or
cyclopropane), D (gasoline, hexane, naptha, benzene, butane, propane, alcohol,
acetone, benzol, lacquer solvent vapors, or natural gas)
Division 2 : Ignitable concentrations of gases, vapors, or liquids are not likely
present under normal operating conditions
Haz Loc Normal Atmospheric Conditions: a) -25°Cto+40°C ambient b) 21%
Max. Oxygen concentration per volume c) barometric pressure range of 80 kPa (0.8
bar) to 110 kPa (1.1 bar)
AUXILIARY DEVICE SUITABLE FOR USE IN
CLASS I, DIVISION 2 (or ZONE 2), GROUPS A, B, C, D
HAZARDOUS LOCATIONS, or NONHAZARDOUS LOCATIONS ONLY
EXPLOSION HAZARD – DO NOT DISCONNECT EQUIPMENT
WHILE THE CIRCUIT IS LIVE OR UNLESS THE AREA IS
KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
BE SURE POWER IS SHUT OFF PRIOR TO INSTALLING THIS DEVICE!
Universal Power Alert R-3W2 UL NEC CLASS I, DIVISION 2 Patented

Approvals:
UL LISTED file No. E334957
Per ISA 12.12.01-2007
CAT FILE No. E311256
per UL61010-1, 2ND Edition
CAN/CSA-C22.2 No. 61010-1, 2ND Edition
Specifications:
Input: AC SINGLE OR 3-PHASE: 40 to 600V , 50/*60/400 Hz *UL approval
DC OR STORED ENERGY: 30 to 1000V , (Voltages Line-to-Line or Line-to-Ground)
Maximum Rating: 750V or 1000V @ 1.2 Watts, Operating Ambient Air of 55°C Max.
Detection Thresholds: 29V , 40V ,27V (typical cut-off)
Temperatures
Operate: -20°Cto+55°C, Code T5
Storage: -45°Cto+85°C
Terminations: (4) 8 ft, 18 AWG, 90°C @ 1000V, UL-1452
PVC insulation w/ nylon jacket
L1- L3: Black w/ bar identification (Fig. 1)
GND: Green w/ Yellow stripe
Housing: Black Noryl, totally encapsulated including LEDs for environment protection
O-Ring Seal: Blue VFMQ Florosilicone, UL approved material
EXPLOSION HAZARD – SUBSTITUTION OF ANY COMPONENT
MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2
R-3W2 Page 2 of 12
IND. CONT. EQ.
HAZ. LOC. 42RV
46RD
R
UL TYPE 4X
TYPE 12
TYPE 13
CAT III 1000V
CAT IV 600V
DC or AC-rms to Ground
(Peak Impulse Transient 8000V
20 repetitions, 2 ohm source)
Fig. 1

R-3W2 Page 3 of 12
INSTALLATION AND OPERATING INSTRUCTIONS:
1. Design, wiring, and service of equipment for Hazardous Locations should only be
preformed by qualified personnel familiar with local, state, and related national codes
including National Electrical Code (NEC) articles 500, 505 & 506.
2. To meet UL TYPE 12, 13, or 4X sealing requirements, mount on a flat surface of an
enclosure qualifying for a respective TYPE or NEMA rating or equivalent elevated
ambient rating.
3. Locate the unit in visual proximity to the control panel ON/OFF disconnect and within
wiring distance to incoming Main Lines and Earth Ground. Verify there is no
interference with the free operation of the ON/OFF disconnect mechanism.
4. (a) For , refer to knock-out pattern below and Control Drawing No. 195
for assembly. Note that Warning Plate R-3W-L* includes anti-rotation tabs so only a
30.5 ±0.5 mm panel hole is required.
(b) For with R-3WD-DBZL kit, refer to knock-out pattern below and
Control Drawing No. 199 for assembly. Note that Warning Plate R-3W2-L includes
anti-rotation tabs so only a 1.692" +.020/-.000 panel hole is required
Standard Mount
Low Profile Mount
Low Profile Knockout
Standard Knockout
*These labels install around the R-3W2 with no affect on its UL certification. The lables are not UL approved.

R-3W2 Page 6 of 12

R-3W2 Page 4 of 12
<29
~
3 LINE-TO-LINE (VAC)
FLASHES / SEC (TYPICAL)
OR STORED ENERGY (VDC)
FLASHES/SEC (TYPICAL)
30 120 240 480 600 750
0 1.3 4.2 5.8 7.3 8.0 8.8
<27 30 48 110 300 600 1000
0 1.6 2.5 4.5 6.9 8.8 9.1
INDICATOR FLASH RATES (L1, L2, L3, GND)
5. For Delta configured power, connect the 1 bar, 2 bar & 3 bar black wires to L1, L2, & L3
respectively (Fig. 1) on the fused or disconnect side of the 3-Phase line voltage. The
Green/Yellow stripe (Grn/Yel) wire be connected to Earth Ground. (Fig. 3)
6. Wye configured power with grounded Neutral is connected the same as for Delta in step 5.
The Grn/Yel wire connect to the neutral but to non-current carrying Earth
Ground.
The neutral will not be monitored for voltage by the Detector, only Phase-to-Phase
and Phase-to-Ground voltage will be detected. To include neutral monitoring go to step 7.
7. Ungrounded or high resistance Wye configured power requires (2) additional units to include
all possible voltages the Neutral line introduces. Wire as shown in Figure 2.
8. First disconnect all equipment that may introduce a hazard and
notify personnel before powering the panel!
With normal voltage applied, the L1, L2, and L3 indicator pairs
will flash at rates according to the applied voltage (See table below).
MUST
DOES NOT
Verifying Proper Operation:
Caution:
(a) TURN POWER ON.

R-3W2 Page 7 of 12

R-3W2 Page 5 of 12
(Step 8 continued)
(b) GND Indicator Pair Operation: For isolated Delta or 3-Phase WYE applications, it is normal
for the “GND” indicator pairs not to flash unless a phase is lost producing an unbalanced condition.
This peculiarity res ults when the Phase-to-Phase voltages are balanced resulting in no current to a
Neutral connection. The R-3W2 indicators are current driven; therefore, no net current in the R-3W2
ground line (connected to Neutral) will cause the “GND” indicators to not flash. A leakage resistance
path from any phase-to-ground from 2-7 Meg ohms producing a corresponding current from 7-67 µA
in the “GND” wire is adequate for the “GND” indicators to flash. To verify operation of the “GND”
indicators, a normally closed push-button switch could be placed in series with the L1, L2, or L2 lines.
Depressing the switch would simulate a phase loss enabling “GND” indicator pair operation
verification.
(c) TURN POWER OFF. All (8) LED indicators should be extinguished.
Note: If a “+” indicator for one line and a “-“ indicator for another line are still flashing, STORED
ENERGY is present and must be removed or discharged. All indicators must be extinguished or a
shock hazard is present on the monitored lines. -Verification completed
BEFORE OPENING A PANEL!
1. Verify R-3W2 is operating according to step 8 while power is on. Follow step 8 (a), (b), & (c).
MAINTENANCE
1. For o-ring inspection, follow the respective Control Drawing directions pages 7 & 8.
2. For cleaning the front blue label or the information sticker, use only clean water and a soft cloth.

R-3W2 Page 8 of 12

R-3W2 Page 9 of 12
Standard Mount Bezel Mount
R-3W2 R-3W2-BZL

R-3W2 Page 10 of 12
Many other variations available upon
request. Please call 1-800-280-9517 or visit
www.graceport.com
WARNING!
Read instructions
before installing
Part#: R-3W2-L
ENGINEERED
PRODUCTS, INC
GRACE
WWW.GRACE-ENG.COM
VOLTAGE IF FLASHING
SAFETY PROCEDURES STILL APPLY.
TEST BEFORE TOUCHING.
DANGER
Part#: R-3W-NP-F2*
Part#: R-3W2-NP-F2
ENGINEERED
PRODUCTS, INC
GRACE
WWW.GRACE .COMPORT
VOLTAGE IF FLASHING
SAFETY PROCEDURES
STILL APPLY.
TEST BEFORE TOUCHING.
DANGER
WARNING!
Follow Safety Procedures
Read instructions
before installing
Part#: R-3W-L*
*These labels install around the R-3W2 with no affect on its UL certification. The lables are not UL approved.

R-3W2 Page 11 of 12
Fig. 2

R-3W2 Page 12 of 12
Fig. 3 Fig. 4