1746-OB16 Allen-Bradley SLC 500 Core Keyword

1746-OB16 Allen-Bradley SLC 500 Core Keyword | New & Original Stock

Availability: 20 left in stock

Allen-Bradley 1746-OB16 SLC 500 I/O Modules The Allen-Bradley 1746-OB16/D, also cataloged as the 1746-OB16 Output Module, operates as a dedicated...

SKU: 1746-OB16/D

Manufacturer: Allen Bradley
Product No.: 1746-OB16/D
Product Type: Digital I/O Cards
Product Origin: USA
Payment:T/T, Western Union
Weight: 250g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1746-OB16 SLC 500 I/O Modules

The Allen-Bradley 1746-OB16/D, also cataloged as the 1746-OB16 Output Module, operates as a dedicated hardware component for discrete current-sourcing execution within SLC 500 platforms.

Hardware Specifications

Parameter	Specification
Model	1746-OB16
Brand	Allen-Bradley
Origin	USA
Weight	0.60 lbs (0.25 kg)
Dimensions	145 x 35 x 130 mm
Operating Temp	0 to 60 deg C
Power Consumption	280 mA @ 5 VDC, 0 mA @ 24 VDC backplane current load
Number of Outputs	16 outputs (1 group)
Configuration	Sourcing configuration
Nominal Voltage	24 VDC
Operating Voltage Range	10 to 50 VDC
Max Output Current	1 A per channel (16 A max per module)
Min Load Current	1 mA
Max On-State Voltage Drop	1.2 V @ 0.5 A
Max Off-State Leakage	1 mA
Surge Current per Output	3 A for 10 ms
Signal Delay (Resistive Load)	0.1 ms (on) / 1 ms (off)
Heat Dissipation	1.4 W min, 7.6 W total module max (0.388 W per point)
Isolation Voltage	1500 V AC for 1 second (channel-to-backplane)
Indicating Style	Individual channel status LEDs
Terminal Style	Removable screw terminal block
Mounting Style	Rack mount (SLC 500 chassis slot)

Industrial Control & Drive Integration

The 1746-OB16 manages discrete signal propagation matched to the backplane bus communication velocity constraints of the SLC chassis assembly. Integrated directly into the parallel hardware backplane, the module facilitates uniform I/O density scaling routines across legacy and updated Profinet / EtherNet/IP deterministic networks via network scanners. System consistency requires matching firmware flash compatibility across active network interface modules to accurately process the 16-point sourcing output map without generating cyclic communication packet errors or transmission delays.

Frequently Asked Questions

Q: Does the 1746-OB16 support hot-swap (Removal and Insertion Under Power) capabilities?

A: No. The SLC 500 chassis backplane architecture does not support RIUP. The chassis power supply must be switched off completely before inserting or removing the module to prevent electrical damage to the internal logic components or backplane bus lines.

Q: What are the consequences of exceeding the 7.6 W total module heat dissipation threshold?

A: Exceeding the specified heat dissipation capacity can elevate local ambient operating temperatures inside the chassis enclosure, degrading the solid-state switching components, reducing output load accuracy, and potentially triggering early thermal shutdown states.

Field Installation Guidelines

Chassis Slot Insertion: Align the module circuit board with the upper and lower chassis guides of the selected slot. Slide the hardware firmly into the backplane connector until the top and bottom retaining tabs click and lock completely into place.
Terminal Wiring Setup: Ensure the removable terminal block is detached before inserting field wiring. Land the 24 VDC nominal sourcing power supply and field actuator loads onto the designated screw terminals, applying appropriate torque to avoid high-resistance contact points.
Shield Grounding Best Practices: Wire the SLC 500 chassis ground terminal directly to a low-impedance functional earth ground bus bar. Route all inductive load wiring, such as solenoid and relay coil lines, away from low-voltage communication paths to suppress high-frequency noise injection.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.