1783-US8T Allen-Bradley Unmanaged Switch | New & Original Stock

1783-US8T Allen-Bradley Unmanaged Switch | New & Original Stock

Availability: 20 left in stock

Allen-Bradley 1783-US8T Stratix 2000 Unmanaged Switch The Allen-Bradley 1783-US8T, also cataloged as the 1783-US8T Unmanaged Switch, operates as a dedicated...

SKU: 1783-US8T

Manufacturer: Allen Bradley
Product No.: 1783-US8T
Product Type: Unmanaged Switches
Product Origin: USA
Payment:T/T, Western Union
Weight: 340g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Allen-Bradley 1783-US8T Stratix 2000 Unmanaged Switch

The Allen-Bradley 1783-US8T, also cataloged as the 1783-US8T Unmanaged Switch, operates as a dedicated hardware component for 10/100 Mbps Ethernet packet distribution within Stratix 2000 platforms. Configured with 8 independent copper ports, the device executes raw layer-2 packet forwarding without the need for active address management or CPU processing intervention.

Hardware Specifications

Parameter	Specification
Model	1783-US8T
Brand	Allen-Bradley / Rockwell Automation
Origin	USA
Weight	0.34 kg (0.75 lbs)
Dimensions	114.5 mm x 76.8 mm x 45.6 mm
Operating Temp	-10 to 60 deg C
Power Consumption	4.6 W maximum
Total Ports	8 Copper RJ45 ports
Transmission Speed	10/100 Mbps auto-negotiating
Power Input Voltage	12-48 VDC / 18-30 VAC (50/60 Hz)
Nominal Current Load	250 mA at 12-48 VDC / 500 mA at 18-30 VAC
Max Inrush Current	1.31 A
Enclosure Rating	IP20
Configuration Hardware	Integrated DIP switch for Broadcast Storm Protection

Profinet / EtherNet/IP Deterministic Networks Performance

The physical layer structure supports deterministic distribution of EtherNet/IP and industrial automation frames by utilizing hardware-based broadcast storm protection. When enabled via the integrated DIP switch, internal circuitry caps broad-scale multicast saturation thresholds to maintain predictable backplane bus communication velocity across adjacent PLC modules. The internal buffer architecture scales safely against localized I/O density scaling spikes, ensuring that standard 10/100 Mbps transmission streams do not introduce variable packet jitter into real-time producer-consumer network loops.

Frequently Asked Questions

Q: How is the maximum inrush current threshold of 1.31 A managed during simultaneous network power-up cycles?

A: The internal power supply circuit features capacitive components that generate a brief 1.31 A surge upon initial voltage application. Upstream 24 VDC power distribution must be sized to tolerate this transient without dropping below the minimum 12 VDC operational threshold.

Q: Does this unmanaged module support custom firmware flash compatibility updates?

A: No. As a completely hardware-configured unmanaged switch, the device lacks an onboard processor or volatile memory allocations reserved for firmware modifications. All logic execution is hardwired within the internal switching fabric.

Field Installation Guidelines

DIN-Rail Mounting Stability: Snap the rear integrated mounting clip directly onto a standard 35 mm symmetric DIN rail. Ensure the top hook is seated completely before snapping the bottom tension lock into place to prevent physical displacement from operational vibration.
Power Conductor Termination: Secure incoming AC or DC power lines into the removable terminal plug. Ensure positive, negative, and frame ground connections match the printed terminal markings to avoid reversing electrical polarity.
Shielding and Grounding Standards: Ground the DIN rail itself to the main protective earth enclosure busbar. Use shielded twisted-pair (STP) Cat5e or Cat6 cabling to mitigate high-frequency electromagnetic interference from surrounding variable frequency drives.
DIP Switch Activation: Prior to powering the unit, set the integrated DIP switch to the active position if broadcast storm mitigation is required for the local machine-level network cell.

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.