Honeywell FTA-E-04 Fail-Safe Digital Output FTA

Product Description

Configured for four-channel relay-based digital output execution, the Honeywell FTA-E-04 (FTA-E-04 Fail-Safe Digital Output FTA) provides electrical switching between the control-side input and field contacts. Each channel uses two relays from different manufacturers, a fused normally open field contact, and a status LED. The specified nominal input voltage is 24 V, with a maximum input voltage of 31 V.

Hardware Specifications

Relay Output and Fail-Safe Switching Characteristics

The FTA-E-04 uses four independent relay channels. Each channel contains two relays from different manufacturers. The channel also includes a fused normally open field contact rated with a 3.15 AT fuse and a status indicator LED.

The control-side circuit operates at a nominal 24 V input level. The relay cut-in voltage is specified as 19 V. The maximum stated input voltage is 31 V, while the typical input current is 50 mA at 24 V.

The supplied technical description identifies the field switching interface with voltage handling up to 250 VAC and current handling up to 3.15 A. These values should be checked against the applicable Honeywell contact and load specifications before connecting an external load.

Frequently Asked Questions

Q: How many relay output channels does the FTA-E-04 provide?
A: The FTA-E-04 provides four independent channels. Each channel contains two relays from different manufacturers.

Q: What input voltage does the FTA-E-04 require?
A: The nominal input voltage is 24 V. The specified maximum input voltage is 31 V, and the relay cut-in voltage is 19 V.

Q: What protection and status components are provided on each channel?
A: Each channel includes a fused normally open field contact with a 3.15 AT fuse and a status indicator LED.

Field Installation Guidelines

Install the FTA-E-04 with the specified FTA-T-08 ELCO FTA and 1x4F terminal arrangement. Use the specified SIC-C-02 cable for the stated 4/4 signal connection.

Verify the 24 V control supply before energizing the module. Keep the applied input voltage within the specified 31 V maximum. Check the relay cut-in voltage when troubleshooting a channel that does not actuate.

Separate control wiring from high-voltage field wiring where the cabinet design permits. Route relay output conductors to prevent unnecessary coupling with sensitive signal circuits. Terminate cable shields according to the system grounding design and avoid creating unintended ground loops.

Before connecting a field load, verify its voltage and current requirements against the applicable relay contact and fuse ratings. Do not treat the 3.15 AT fuse value as a substitute for the relay contact rating. Confirm terminal identification and wiring against the applicable Honeywell installation documentation.

Other Attributes

• Series: Honeywell FSC
• Country of Origin:  USA
• Lead Time: In Stock, 2 Working Days

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