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Ask for May, Sales Manager, PLC Autocontroller – 20 years of Triconex spares, ships today.
1. Module role
RO3451 converts the Tricon TMR-voted digital signal into 32 galvanically-isolated relay outputs.
2. Each contact is driven by three independent coils that are voted 2oo3 inside the module—so any single coil or driver failure cannot falsely energise or de-energise the field device.
3. Ideal for ESD solenoids, horn/strobe circuits, main-contactor coils or any load that needs dry-contact isolation.
2.Key specifications (25 °C, 24 V backplane)
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Item
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Value
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Outputs
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32 × Form-A SPST-NO dry contacts
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Contact rating
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2 A, 30 V DC / 250 V AC (resistive)
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Isolation
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500 Vrms ch-to-ch & ch-to-logic
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Operate time
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≤ 10 ms incl. 2oo3 vote
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Diagnostics
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coil open, contact weld, wire-break
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Temperature
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40…+70 °C
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SIL / cert
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SIL 3, IEC 61508, TÜV
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Part number
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3009-3451
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3.Front-panel LEDs
PASS (green) = module healthy; FAULT (red) = voted fault; 1…32 (green/red) = channel ON / fault.
4.Popular Tricon Relay / Digital Output Models
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Model
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Description
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Load Type
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Rating
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RO3451
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32-ch relay, Form-A
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dry contact
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2 A 250 V AC/30 V DC
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RO3351
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32-ch relay, Form-C
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change-over
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2 A 250 V AC
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RO3551
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16-ch relay, high-power
|
dry contact
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5 A 250 V AC
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DO3201
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32-ch solid-state
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sinking
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0.5 A 24 V DC
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DO3401
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16-ch solid-state
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sourcing
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2 A 24 V DC
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DO3501
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8-ch high-current SS
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sourcing
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5 A 24 V DC
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DO3601
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16-ch line-monitoring
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sinking
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1 A 24 V DC
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DO3701
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32-ch low-leakage SS
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sinking
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0.25 A 24 V DC
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DO3801
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8-ch isolated SSR
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sourcing
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3 A 240 V AC
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DO3901
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16-ch reed relay
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dry contact
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0.5 A 120 V AC
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