3451 Triconex Mixed Digital Input / Output Module

TRICONEX 3451 Product Introduction
Brand: Triconex (Schneider Electric)
Model: 3451
Product Name: Mixed Digital Input / Output Module
Origin: United States
HS Code: 85389000
Dimension: 342 mm × 31 mm × 262 mm
Weight: 0.49 kg
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Rated Supply Voltage: Backplane 5 V DC, field 24 V DC
Rated Operating Current: 420 mA @ 5 V DC
Relative Humidity: 5% to 95%, non-condensing

Ingress Protection: IP20 for cabinet installation
Integrated digital input and digital output channels
TMR triple redundant architecture for all safety channels
24 V DC field signal interface
Built-in wire break, short and load fault diagnosis
Front panel LED for each channel status
Supports hot swap in redundant rack
SIL 3 certified with proper configuration
Space-saving single-slot mixed I/O design
Supports de-energize-to-trip output mode
Compliant with IEC 61508 and CE standards
FAQ for TRICONEX 3451
Q1: When should we choose 3451 instead of separate DI and DO modules?
A1: It is suitable for small safety subsystems with limited rack slots, which need both digital input and output signals.
Q2: Are input channels and output channels isolated on 3451?
A2: Field circuits have isolation design between input group and output group to avoid cross interference.
Q3: Can we force input and output points independently in software?
A3: Yes, individual point force is supported, but safety work permit and lockout procedures are mandatory.