Intrinsically safe specifications, Intrinsically safe specifications -3 – Rockwell Automation 1797-XXX FLEX Ex System Certification Reference Manual User Manual

Page 41

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Publication 1797-6.5.6 - June 2005

1797-TB3 FLEX Ex Terminal Base Unit 3-3

Intrinsically Safe
Specifications

For a full list of specifications, refer to the FLEX Ex Terminal Base
Installation Instructions, publication 1797-5.1.

Terminals Assignments

+34, -35, +50, -51, and 96

pin

i

female I/O connector

pins

i

30-32, 62-64, 94-96

i

36, 49
All Other Terminals

Only for intrinsically safe circuits
U

i

<10V dc

I

i

<2.5A

C

i

< 1nF

L

i

Negligible

Must not be used for any connection
U

i

<30V dc

I

i

<100mA

C

i

<1nF

L

i

Negligible

Flexbus Connection Intrinsically Safe

U

i

<10V dc

I

i

<400mA

C

i

<1nF

L

i

Negligible

Operational Temperature

-20 to 70

o

C (-4 to 158

o

F)

Agency Certification

II 2G EEx ia IIC T4

Certificates

DMT 98 ATEX E012 U

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