Gems Sensors & Controls 64558 Instruction Bulletin
G. Refer to Fig. 7 for detailed connection to terminal studs. All hardware,
including terminal lugs, is supplied with unit.
Fig. 7
Recommended Method of Connection to Electrical Terminals
HEX
Nut
Anti-Vibrational
Lockwasher
Notes
Tighten Assembly to Between
3 and 5 In. Lbs.
All terminal hardware (including
lug) supplied with unit.
Fusing of the SAFE-PAK to be in accordance with Fig. 1. Fuse F1 to be
H.
Terminal Lug.
(Closed-Ring Type)
Terminal Stud
1 amp "slo-blo". 120 VAC for 120 V line voltage.
Protective cover (supplied) must be in place over sensor-connected terminals
I.
of the PAK after wiring has been completed. (See Fig. 8)
Fig. 8
Mounting of Protective Cover over Sensor-Connected Terminals of Unit
Stud Cover
Nylon
Stud Cover
Nylon
Low Sensitivity SAFE-PAK
and Latching SAFE-PAK
®
®
Instruction Bulletin No. 64558
For use as an "intrinsically safe switch circuit", in hazardous locations Class I,
Division 1, Groups A, B, C, and D and Class II, Division 2, Groups E, F, and G.
Gems' SAFE-PAK is suitable for installation in Class I, Division 2 or non-hazardous locations. IMPORTANT! Read carefully and completely before installing or
connecting SAFE-PAK or Latching SAFE-PAK
*** Warning: To prevent ignition of flammable or combustible atmospheres,
disconnect power before servicing.
1. Associated Equipment - Caution: The SAFE-PAK must be mounted outside the
hazardous area. Only the switch or sensor terminals provide an intrinsically safe
switch circuit (see Fig. 1, Fig. 2 or Fig. 3). [Exia] means associated equipment:
"Appareillage connexe", located in safe area.
Connection Diagram: Gems SAFE-PAK Models
Note
For 120V application,
only one fuse is required
in the ungrounded circuit
of the input line.
Input
VAC
Fig. 1.
FUSE F1
FUSE F1
SAFE-PAK
Sensor Switch
LOAD
[Exia]
Non-Hazardous
Location
Hazardous
Location
Terminals
P/N 64558
Rev. J
Terminals
LATCHING SAFE-PAK SAFE-PAK
(High)
N.O. Dry
(Low)
N.O. Dry
Circuit for Pump-Down Operation
Fig. 2.
Hazardous
Location
S2
S1
Non-Hazardous
Location
On
A
C
Com
L
O
A
D
Off
Latching
SAFE-PAK
Fuse F1
VAC (Hot)
Com
Load
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