1790D-T8A0 DeviceNet Base Module Allen-Bradley

Allen-Bradley 1790D-T8A0 8-Point AC Input Module

Key Technical Specifications

• The module features eight non-isolated input points for 120V AC signals.
• Each input accepts a wide on-state voltage range from 85V AC to 132V AC, with a nominal 110V AC.
• The input circuit has an 18 kΩ impedance and draws a maximum of 9 mA current at 132V AC.
• A fast signal response time ensures efficiency with Off-to-On delays of 10 ms and On-to-Off delays of 30 ms.
• The off-state input can tolerate up to 45V AC without triggering a false on signal.
• Photocoupler isolation (1250V AC rms) protects the logic side from the field-side AC power.

General Specifications & Power

• This DeviceNet base module requires a 24V DC control power supply, operating from 11 to 28.8V DC.
• The module's internal DC power dissipation remains low at a maximum of 1.2 Watts.
• The external field power connects directly to a standard 110V AC, 60 Hz supply (range 85-132V AC, 47-63 Hz).
• Each input channel includes a clear green status LED for visual indication.
• The wiring uses a convenient terminal block (M3.0 screw) with a maximum torque of 7 lb-in.

Installation & Packaging

• We recommend using a 1 Amp, 250V normal blow fuse for field power protection.
• You can wire the module using standard copper or copper-clad aluminum conductors.
• The 1790D-T8A0 module ships with all necessary components for immediate installation.
• We pack the product securely to prevent any damage during shipping.
• We typically dispatch orders using reliable global carriers like FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

• Q: What is the operating voltage range for the AC inputs?
  A: The inputs work reliably from 85V AC (minimum) up to 132V AC (maximum), with 110V AC as nominal.
• Q: How many input points does the 1790D-T8A0 have?
  A: This base module provides 8 individual non-isolated AC input points.
• Q: Do you have this DeviceNet module in stock?
  A: Yes, we have this item in stock for quick shipment.
• Q: How soon can you ship my order?
  A: We process and ship orders within 5 business days after confirmation.
• Q: What is your return policy?
  A: We support a 30-day return policy for unused items in original packaging.

© 2026 NexAuto Technology Limited. All rights reserved.
Original Source: https://www.nex-auto.com/
Contact: sales@nex-auto.com | Phone: +86 153 9242 9628