Allen-Bradley 1771-WN Field Wiring Arm

The Allen-Bradley 1771-WN Field Wiring Arm is an accessory designed to provide efficient and organized connections between field wiring and I/O modules within the 1771 series. It serves as an essential interface, simplifying the wiring process and allowing easy connection and disconnection during maintenance activities. The 1771-WN is compatible with various digital and analog I/O modules in the 1771 series, ensuring versatility and reliability for industrial automation systems.

Advantages:

• Simplifies the wiring process for 1771 series I/O modules.

• Allows for easy connection and disconnection of field wiring during maintenance.

• Provides organized and reliable wiring connections for increased system integrity.

General Info

• Manufacturer: Allen-Bradley

• Model Number: 1771-WN

• Type: Field Wiring Arm

• Compatibility: 1771 series I/O modules

• Wiring Torque: 7-9 inch-pounds

• Conductor Requirements: Supports 14 gauge (2mm²) stranded wires with insulation up to 3/64 inch (1.2mm)

Features

• Maximum Number of I/O: 32

• Number of Terminals: 40

• Contacting Plates: Tin

• Typical Application: 10 to 32V DC. Digital

• Ease of Use: The 1771-WN Field Wiring Arm is designed for quick and easy connection of field wiring to 1771 series I/O modules. Its design ensures that wires are securely held in place while allowing easy disconnection for maintenance.

• Compatibility: The 1771-WN is compatible with a wide range of I/O modules in the 1771 series, making it a versatile accessory for various automation systems.

• High Durability: Built to withstand industrial environments, the 1771-WN ensures that wiring connections remain secure and reliable even under challenging conditions.

• Standard Conductor Requirements: The wiring arm supports 14 gauge stranded wires with insulation up to 3/64 inch, providing flexibility for different field wiring configurations.

Technical Specifications

• Model Number: 1771-WN

• Wiring Torque: 7-9 inch-pounds

• Compatibility: 1771 series digital and analog I/O modules

• Conductor Requirements:

  • Wire Gauge: 14 gauge (2mm²)

  • Insulation Thickness: Up to 3/64 inch (1.2mm)

• Mounting: Snap-in mounting to compatible I/O modules

• Field Terminals: 40 terminals for field wiring connections

• Material: High-quality plastic for durability and insulation

• Operating Conditions:

  • Temperature Range: 0°C to 60°C (32°F to 140°F)

  • Humidity: 5% to 95%, non-condensing

• Input Resistance: 250 Ω to 1000 Ω

• Voltage Specifications:

  • Nominal Input Voltage: 120V AC

  • Maximum Input Voltage: 138V AC

  • Maximum Off-State Voltage: 30V AC

• Current Specifications:

  • Nominal Input Current: 8.2 mA at 115V AC (60 Hz)

  • On-State Current: Minimum 5.2 mA at 85V AC (60 Hz)

  • Maximum Off-State Current: 2.3 mA at 30V AC (60 Hz)

• Maximum Power Dissipation: 7W

• Maximum Surge Current: 10A for 25ms at 1 Hz and 30°C

• Fuses: 250V 2A, Littelfuse 312002

• Lifecycle Status: Discontinued as of May 19, 2020

• Pollution Degree: 2

• Overvoltage Category: II

• Additional Electrical Parameters:

  • Nominal Input Voltage: 120V AC

  • Maximum Input Voltage: 138V AC

  • Input Current: 8.2 mA at 115V AC

  • Voltage Range: 20 to 30V AC at 47-63 Hz

  • Nominal Output Voltage: 24V AC, 50/60 Hz

  • Output Current Rating: 1.5A per output, maximum 6A per module

  • Surge Current (Maximum): 4A for 10ms

  • Minimum Load Current: 100mA per output at 24V AC, 60 Hz

  • On-State Voltage Drop (Max): 2V at 100mA

  • Off-State Leakage Current (Max): 4mA per output at 30V AC

  • Signal Delay Off to On: 1.0 ms

  • Signal Delay On to Off: 8.3 ms at 60 Hz

  • Thermal Dissipation: 45.1 BTU/hr (max), 4.1 BTU/hr (min)

  • Isolation Voltage: Meets UL Standard 508 and CSA Standard C22.2 No. 142

  • Fuse: Bussman Fuse AGC-2, Littelfuse 312002

  • Environmental Conditions:

    • Operating Temperature: 0°C to 60°C

    • Storage Temperature: -40°C to 85°C

    • Relative Humidity: 5% to 95% (non-condensing)

• Keying Field Wiring Arm Screw Torque: Between 24 and 28 inch-pounds

• Wiring Arm Screw Torque: 7-9 inch-pounds

Compliance and Certifications

• Certifications: UL Listed, CE Marked, CSA Certified, Class I, Division 2 Groups A, B, C, D Certified

• Standards Compliance:

  • EN 61131-2: Compliance for programmable controller equipment

  • EMC Compliance: Meets EN 50081-2 and EN 50082-2 standards