Rockwell Automation 1797-TB3S FLEX Ex Terminal Base User Manual
Page 16
16 FLEX Ex Terminal Base Units
Publication
1797-5.1 - June 2010
Specifications - 1797-TB3 and 1797-TB3S Terminal Base Units
Number of Terminals
1 row of 16, 2 rows of 18
1797-TB3 Terminal Screw Torque
0.8…1.0 Nm (7…9 lb-in)
1797-TB3S Terminal Type
Spring-clamp - To open, insert bladed screwdriver
(2.54-3.05 mm/0.100-0.120 in.) and lift up.
Terminals Assignments
1
+34, -35, +50, -51, and 96
Pin
i
Female I/O Connector
Pins
i
30…32, 62…64, 94…96,
36, 49
All Other Terminals
Only for intrinsically safe circuits
U
i
<10V dc
I
i
<2.5 A
C
i
< 1 nF
L
i
Negligible
Must not be used for any connection
U
i
<30V dc
I
i
<100 mA
C
i
<1 nF
L
i
Negligible
Flexbus Connection
Intrinsically Safe
U
i
<10V dc
I
i
<400 mA
C
i
<1 nF
L
i
Negligible
Isolation Voltage
Channel-to-channel isolation determined by inserted
module
Weight
200 g (approximately)
Dimensions (With Module Installed
in Base)
Metric
Imperial
3.7H x 3.7W x 2.7D mm
(94H x 94W x 69D in.)
Environmental Conditions
Operational Temperature
-20…70
o
C (-4…158
o
F)
Storage Temperature
-40…85
o
C (-40…185
o
F)
Relative Humidity
5…95% noncondensing
ShockOperating
Tested 15 g peak acceleration, 11 (±1) ms pulse width
Nonoperating
Tested 15 g peak acceleration, 11 (±1) ms pulse width
Vibration
Tested 2 g @ 10…500 Hz per IEC 68-2-6
Conductors
Wire Size
4 mm
2
(12 gauge) stranded max
1.2 mm (3/64 in.) insulation max