TRO-0824 Non-safe Dry Digital Output FTA (8 Channels, NO/NC)

The TRO-0824 module is a field termination assembly (FTA) designed to interface between the system interconnection cable (SICC-0001/Lx) and external field wiring through screw terminals. It features eight non-safe, potential-free relay changeover contacts (NO/NC), each with a status indicator LED showing the energized state of the relay. The module connects to up to eight channels via the system interconnection cable, which plugs into the SIC connector on the FTA and connects to a redundant pair of SDO-0824 modules.

Features:

• DIN Rail Mounting: Universal snap-in provision for standard DIN EN rails.
• Screw Terminals: Facilitates easy field wiring.
• Relay Channels: Each channel includes one relay with a changeover contact and a fused (5 AT) common, along with a status indicator LED.

Technical Data:

General:

• Type Numbers: FS-TRO-0824, FC-TRO-0824
• Approvals: CE, UL, TUV, CSA

Input:

• Nominal Input Voltage: 24 V DC
• Max Input Voltage: 31 V DC
• Relay Cut-in Voltage: 19 V DC
• Input Current: Typically 27 mA at 24 V DC

Output:

• Number of Output Channels: 8
• Max Output Current: 5 A
• Max Output Voltage: 250 V AC / 300 V DC
• Max Switched Load: 1250 VA / 150 W at 30 V DC

Fuse:

• Fuse Rating: 5 A
• Fuse Dimensions: 5x20 mm
• Voltage Rating:
  • AC: 250 V
  • DC: 150 V
• Manufacturer: Schurter
• Manufacturer PN: 0001.2511

Derating Curve:

• Linear Derating: From 5 A at 25°C to 3.5 A at 70°C module ambient

Physical:

• Module Dimensions: 195 × 70 × 60 mm (L × W × H)
• DIN EN Rails: TS32 / TS35 × 7.5
• Used Rail Length: 196 mm (7.72 in)

Termination:

• Screw Terminals:
  • Max. Wire Diameter: 2.5 mm² (AWG 14)
  • Strip Length: 7 mm (0.28 in)
  • Tightening Torque: 0.5 Nm (0.37 ft.-lb.)

Relay Contacts:

• Max Current: 8 A
• Max Switched Voltage: 250 V AC / 300 V DC
• Max Switched Load: 2000 VA / 192 W at 24 V DC
• Max Switching Frequency: 20 Hz
• Expected Life: Refer to manufacturer specifications for details

Isolation:

• Coil to Contact: 4000 V AC
• Contact to Contact: 1000 V AC

Ambient Temperature:

• Range: -40°C to +70°C (-40°F to +158°F)

Contact Material:

• Material: Silver-cadmium oxide (AgCdO)