Allen-Bradley 1746-OB32 SLC 500 32-Channel DC Output Module, Sourcing

Description

 

The 1746-OB32 is a 32 Channel Digital Output Module by Allen-Bradley. It is a high density low current DC output module, compatible to be fitted in any available slot of 1746 Chassis except slot 0. The voltage output it provides is 24V DC. The 1746-OB32 has 32 outputs with 16 points per common and it has a sourcing operational voltage ranging between 5 and 50V DC. The 1746-OB32 module draws 0.19A of backplane current at 5V DC and it provides an output circuit isolation tested at 1500V AC for 1 minute. It has a maximum signal delay time of 0.1ms in ON and 1ms in OFF mode and the maximum circuit current leakage in the OFF state is 1mA. The 1746-OB32 has 0.25A at 0-60 Deg. Celsius nominal current on each output point and the minimum current load of 1mA for every output channel. The module has an average 8A nominal current and a 2A current per common. The maximum voltage loss in the circuit in the ON state is 1.2V at 0.5A and it has a surge of 1.0A for 1ms repeatable every 2s across each output point, a power dissipation of 0.172W per point, and a total module heat dissipation of 6.45W.

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Technical specifications

 

Part Number/Catalog No.：1746-OB32
Series：SLC 500
Module Type：Digital DC Output Module
Outputs：32
Voltage Range：5-50 Volts DC
Current/Output：0.5-0.25 amps
No. of Outputs：Thirty-Two (32)
Current/Module：8 amps
Point Per common：Sixteen (16)
Backplane Current (5 Volts)：190 milliamps
Nominal output：24VDC
Applications：High Current
Step Response：60 milliseconds in, 2.5 milliseconds out
Backplane Current：(5 Volts)190 mA
UPC：10662468092903
Signal Delay, ON：0.1 ms
UNSPSC：32151705
Signal Delay, OFF：1.0 ms
Electronic Protection：No

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1. 32-channel high-density relay output
Supports 32 independent relay outputs (2A@30VDC or 0.5A@120VAC per channel), suitable for controlling medium and low power loads such as solenoid valves, contactors, indicator lights, etc., and can be flexibly configured as normally open or normally closed output mode.

2. Industrial-grade reliability and diagnostics
Built-in surge suppression circuit to extend relay life (mechanical life > 1 million times), provide channel-level LED status indication (operation/fault), support online hot-swap maintenance, and reduce system downtime.

3. Seamless integration of SLC 500 system
Compatible with 1746 series backplane, communicate with SLC controller through standard I/O mapping, support RSLogix 500 programming, suitable for traditional equipment transformation or as an expansion module for existing systems.

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- Ovation, Foxboro, EPRO, Emerson DeltaV, Fuji, Siemens, HIMA, Prosoft, Invensys Triconex, ICS TRIPLEX, Woodward, Bachmann, Schneider

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