Honeywell TC-FODA81 8-Channel 120Vac Output

Honeywell TC-FODA81 Digital Output Module

Product Introduction

The TC-FODA81 is a member of Honeywell's TC Series I/O family. It offers eight non-isolated digital output channels in a single group. These outputs switch 120Vac field loads such as motor starters, contactors, and solenoid valves. The module suits process automation, packaging machinery, and utility control panels. Its compact housing saves valuable DIN-rail space. Moreover, the logic-driven status indicators simplify field troubleshooting.

Electrical Specifications

The TC-FODA81 operates from an external ac supply of 120V ac nominal, with a voltage range of 85 to 132V ac and a frequency of 47 to 63Hz. ON-state current is 5mA minimum per output and 500mA maximum per output at 55°C. This rating proves sufficient to operate an Allen-Bradley Bulletin 500 NEMA size 3 motor starter. At 35°C, each output handles up to 750mA. Furthermore, at 30°C, four adjacent outputs support 1.0A each while the remaining four carry 500mA. Maximum on-state voltage drop is 1.0V at 0.5A. OFF-state leakage stays at 2.25mA maximum. The total output current rating reaches 4.0A across all eight channels. Isolation voltage is rated 1250V ac between user and system circuits.

Surge, Fusing, and Timing Performance

Output signal delay is a half cycle maximum for both OFF-to-ON and ON-to-OFF transitions. Surge current capability reaches 7A for 45ms, repeatable every 8 seconds. Additionally, the external ac supply tolerates a maximum 50A surge for half a cycle at power-up. Recommended fusing uses a 1.6A, 250V ac slow-blow fuse, such as Littelfuse part number 23901.6 or San-O SD6-1.6A. Flexbus current draw is 80mA maximum. Power dissipation peaks at 4.1W at 0.5A and 6.3W at 1.0A, which equals 21.4 BTU/hr thermal dissipation. Eight yellow status indicators on the field side provide logic-driven feedback. The keyswitch position must be set to 8.

Mechanical and Environmental Parameters

The module measures 46mm in height, 94mm in width, and 53mm in depth. It accepts 12 gauge (4mm²) stranded conductors with 1.2mm maximum insulation. Operating temperature spans 0°C to 55°C, while storage ranges from -40°C to 85°C. Humidity tolerance covers 5% to 95% non-condensing. Besides, the unit withstands 30g operating shock and 50g non-operating shock at 11ms pulse width. Vibration resistance is tested at 5g over 10-500Hz per IEC 68-2-6. Note that no isolation exists between individual channels or between customer power and output channels.

Installation Guide

First, confirm the keyswitch position is set to 8 before seating the module. Next, connect the 120V ac field supply and load wiring to the terminal blocks. Use a 1.6A slow-blow fuse on each output circuit for protection. Additionally, keep load current within the derated limits for your ambient temperature. Finally, verify the yellow indicators illuminate correctly when the logic commands each output.

Packaging List

• 1 x Honeywell TC-FODA81 Digital Output Module

• 1 x Anti-static protective bag

• 1 x Carton packaging

FAQ

Q1: What load voltage does the TC-FODA81 switch?
A: The module switches 85 to 132V ac at 47 to 63Hz, with 120V ac nominal. It suits standard North American industrial control circuits.

Q2: How much current can each output handle?
A: Each output carries 500mA maximum at 55°C. At 35°C the limit rises to 750mA, and four adjacent outputs can reach 1.0A each at 30°C.

Q3: Can this module drive a NEMA size 3 motor starter?
A: Yes. The 500mA per output rating is sufficient to operate an Allen-Bradley Bulletin 500 NEMA size 3 motor starter at 55°C.

Q4: What fuse should I use with the TC-FODA81?
A: Use a 1.6A, 250V ac slow-blow fuse such as Littelfuse 23901.6 or San-O SD6-1.6A on each output circuit.

Q5: How do you ship the TC-FODA81?
A: We ship via Fedex, UPS, and DHL. In-stock units typically dispatch within 3 business days after payment confirmation.