Allen-Bradley 1797-IBN16 NAMUR certified module

The Allen-Bradley 1797-IBN16 is a NAMUR certified module. This module is is rated for Class I, II, and III / Div 1, Zone 1 and 22 application areas, allowing mounting of the module and associated components in hazardous locations.

This module features single group of Sixteen (16) non-isolated, sinking input channels. Each input type is NAMUR compatible and Intrinsic Safety (IS) type of Ex ia IIB/IIC T4, AEx ia IIC T4, Class I, II, III Division 1 Group A-G T4and Intrinsic Safety (IS) module type of Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Group A-D T4.

Each channel exhibits an input delay time of 1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms for OFF to ON transitions and 1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms for ON to OFF transitions with default setting of 1 ms.

Technical specifications for 1797-IBN16

ManufacturerRockwell Automation

Input Frequency1000 Hz max

Off-state Current1.2 mA

On-state Current2.1 mA

BrandAllen-Bradley

Product Description:Flex Ex NAMUR Input Module

No. of inputs:Sixteen (16) non-isolated, sinking inputs

Digital Input Type:NAMUR Compatible type

IS input type:Ex ia IIB/IIC T4, AEx ia IIC T4, Class I, II, III Division 1 Group A-G T4

IS module type:Ex ib IIB/IIC T4, AEx ib IIC T4, Class I, Division 1 Group A-D T4

Input pulse width:>500 μs on or off

Input delay times:1 ms, 2 ms, 3 ms, 5 ms, 9 ms, 17 ms, 33 ms

Indicators:16 yellow status indicators 16 red fault indicators 1 green module power indicator

Terminal Base:1797-TB3 or 1797-TB3S

Conductor wire size:4 mm2 (12 gauge) stranded; max 1.2 mm (3/64 in.) insulation max

Part Number/Catalog No.1797-IBN16

Product TypeFLEX Ex I/O Module

Inputs16

Input TypeNonisolated Sinking

Hysteresis0.2 mA

Power Dissipation2.8 W

Thermal Dissipation9.6 BTU/hr max.

Max. Load Voltage7.5 V DC

Weight200 g