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Allen-Bradley 1756-OB8EI

Allen-Bradley 1756-OB8EI

SKU: 1756-OB8EI-R-USA

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All products (new, surplus, and refurbished) are covered by Chief Automation's 1 Year Warranty. The Manufacturer's Warranty does NOT apply.

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Condition SKU Stock Location and Best Delivery Date Price Purchase
Refurbished 1756-OB8EI-R-USA 4 United States $622.00
The Allen-Bradley 1756-OB8EI is a discrete output module within the ControlLogix series, offering eight electronically fused and individually isolated outputs capable of delivering 24VDC, with a voltage range of 10-30VDC. Ideal for energizing various electrical loads such as relay coils and valves, this module occupies a single slot in the 1756 ControlLogix chassis and supports configurations in both local and distributed I/O racks. With a maximum operating current of 2A per point and a total current of 10A per module at 60 °C, it ensures reliable performance, featuring a surge current rating of 4A for 10 ms and rapid switching capabilities.

Technical specifications for 1756-OB8EI

Manufacturer Rockwell Automation
Module Type Digital DC Sourcing Output
Series ControlLogix
Part Number/Catalog No. 1756-OB8EI
Brand Allen-Bradley
No. of outputs Eight (8) Electronically-fused, individually isolated channels
Output Voltage 24VDC
Output Voltage range 10-30VDC
Output Current per channel, nom. 2 A @ 60 °C (140 °F)
Output Current per module, max. 10 A @ 60 °C (140 °F); 16 A @ 55 °C (131 °F) linear derating
Backplane Current, 5.1VDC 250 mA
Backplane Current, 24VDC 2 mA
Power Dissipation 4.7 W @ 60 °C (140 °F)
Output Signal delay, OFF to ON 1 ms, max
Output Signal delay, ON to OFF 5 ms max
Enclosure type rating None (open-style)
Removable Terminal Block 1756-TBCH; 1756-TBS6H
Outputs 8-Point Individually Isolated, Electronically Fused
Voltage 12-24 Volts DC
Operating Voltage Range 10-30 Volts DC
Maximum Output Current Rating-Point 2 Amps at 60 degrees Celsius
Maximum Output Current Rating-Module 16 Amps at 55 degrees Celsius, 10 Amps at 60 Celsius
Power Dissipation (Max) 4.7 Watts at 60 Celsius
Backplane Current at 5 Volts 250 milliamps
Removeable Terminal Block(s) 1756-TBCH, 1756-TBS6H
Isolation Voltage 50 Volts Continuous
Enclosure None
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