AB 1771-WA 24/220V AC/DC General Purpose Wiring Arm

Availability: 20 left in stock

Product Overview The Allen Bradley 1771-WA Series B functions as a removable field wiring arm that links external industrial machinery...

SKU: 1771-WA

Manufacturer: Allen Bradley
Product No.: 1771-WA
Product Type: PLC Field Wiring Arms
Product Origin: USA
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Product Overview

The Allen Bradley 1771-WA Series B functions as a removable field wiring arm that links external industrial machinery sensors, switches, and actuators directly to 8-point 1771 I/O modules. Operating within a flexible voltage window of 24V to 220V AC/DC, this general-purpose component houses 10 heavy-duty terminal blocks. It secures field signals physically to the front of the processor rack while allowing engineers to slide out modules for replacement without rewiring the control cabinet layout.

We guarantee this product arrives 100% Brand New, shipped in its original packaging to ensure total mechanical and electrical compatibility with your legacy PLC-5 layout.

Technical Specifications

Parameter	Specification
Product Type	Field Wiring Arm / Removable Terminal Block
Series Designation	Series B
System Compatibility	Allen-Bradley PLC-5 Racks / 1771 I/O Modules
Number of Terminals	10 Terminals
Module Point Configuration	Optimized for 8-Point I/O Configurations
Voltage Rating Range	24 to 220 Volts AC / DC
Termination Connection Style	Heavy-duty industrial screw-clamp terminals
Supported Wire Sizes	14 to 22 AWG (Solid or Stranded Copper Wire)
Operating Temperature Range	0 to +60 degrees C
Storage Temperature Range	-40 to +85 degrees C
Relative Humidity Range	5% to 95% non-condensing
Physical Weight	0.15 lbs / 0.2 kg

Engineering Advantages

Cuts Module Replacement Down to Seconds: The mechanical latching mechanism allows operators to detach the entire 1771-WA wiring arm from a faulty module body. Technicians execute changeouts in seconds without touching individual field terminations, eliminating the risk of cross-wiring errors upon reassembly.
Accommodates Broad Gauge Discrepancies: The industrial screw-clamp design tightly grips solid or stranded copper conductors ranging from thick 14 AWG power feeds down to delicate 22 AWG instrument signal lines. This flexibility eliminates the need for auxiliary step-down terminal strips inside the control enclosure.
Resists Severe Harmonic Vibrations: High-torque clamping screws withstand the steady physical oscillations typical of industrial heavy machinery, stamping mills, and automated production floors. The physical lock retains continuous terminal contact pressure, preventing intermittent open-circuit faults.
Withstands Wide Voltage Fluctuations: Heavy internal isolation paths safely manage voltage levels anywhere from low-voltage 24V DC logic loops up to high-voltage 220V AC power circuits. This wide operating threshold ensures reliable signal performance across manufacturing, water treatment, and chemical processing networks.

FAQs

Can I upgrade my existing Series A installation to use this 1771-WA Series B wiring arm?

Yes. The Series B version retains identical form-factor dimensions and matching terminal spacing. It snaps directly into legacy 1771 I/O chassis mounting pivots, allowing quick substitution of older or cracked terminal blocks.
What installation step prevents damage to the terminal contacts during module insertion?

Always verify the position of the physical alignment pins on the 1771 I/O chassis slot. Pivot the 1771-WA wiring arm slowly onto the card face until the locking tab clicks firmly into place. Never force the arm closed if you encounter mechanical resistance.
Does this part handle both AC and DC wiring configurations simultaneously on the same arm?

While the insulation barriers handle 24V to 220V AC/DC voltages structurally, you must follow the precise wiring matrix of the specific 1771 input or output module attached to the arm to prevent cross-talk and phase short-circuits.

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.