TBXDSS1625 - Schneider Electric TBX7 relay output module

Schneider Electric TBX7 relay output module with a documented system role and explicit evidence boundaries.

Documented function

Rebuilt from individual evidence

System position

Unknown: Evidence boundary

Schneider Electric identifies TBXDSS1625 as a TBX7 16 relay-output 24 VDC reference.

The Modicon Premium catalog extract lists TBX DSS 1625 as a 16-channel relay output module with 50 VA relay output characteristics.

Schneider Electric records TBXDSS1625 as discontinued on June 30, 2006, with standard service ending June 30, 2014.

The module sits in the TBX remote I/O path between PLC output commands and relay-controlled field actuators.

Unknown: The installed PLC, relay contact loads, wiring, protection, and replacement condition are not established by the captured sources.

Exact reference: TBXDSS1625
Category: PLC / CPU
Evidence checked: 2026-09-12

System role

This section explains what the product does and where it acts in the surrounding system.

Function: Switches relay outputs commanded by the PLC toward field actuators.
System position: Sits in the TBX remote I/O path between PLC output commands and relay-controlled field actuators.
Upstream / inputs: Receives output commands from the PLC over the TBX architecture.
Downstream / outputs: Switches relay channels for downstream field actuators.
Limitations: Unknown: The installed PLC, relay contact loads, wiring, protection, and replacement condition are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

Schneider Electric identifies TBXDSS1625 as a TBX7 16 relay-output 24 VDC reference.
Confidence: high
- www.se.com — retrieved 2026-09-12; high confidence
The Modicon Premium catalog extract lists TBX DSS 1625 as a 16-channel relay output module with 50 VA relay output characteristics.
Confidence: medium
- www.scribd.com — retrieved 2026-09-12; medium confidence
Schneider Electric records TBXDSS1625 as discontinued on June 30, 2006, with standard service ending June 30, 2014.
Confidence: high
- www.se.com — retrieved 2026-09-12; high confidence

Inferences

The module sits in the TBX remote I/O path between PLC output commands and relay-controlled field actuators.
Confidence: medium
Rationale: The sources identify a TBX relay-output module in the Modicon Premium distributed-I/O family, supporting this system position.
- www.se.com — retrieved 2026-09-12; high confidence
- www.scribd.com — retrieved 2026-09-12; medium confidence

Unknowns

Unknown: The installed PLC, relay contact loads, wiring, protection, and replacement condition are not established by the captured sources.
Confidence: low
Missing evidence: The installed PLC, relay contact loads, wiring, protection, and replacement condition are not established by the captured sources.

System position diagram

Diagram showing TBXDSS1625 between Modicon Premium PLC and Relay-controlled field actuators. — System position of TBXDSS1625 from the captured evidence.

View Mermaid source

flowchart LR
  upstream["Modicon Premium PLC"] --> item["TBXDSS1625"]
  item --> downstream["Relay-controlled field actuators"]

View diagram labels

Nodes: Modicon Premium PLC; TBXDSS1625; Relay-controlled field actuators
Edges: Documented upstream connection; Documented downstream function

Next action

Decision: The evidence supports TBXDSS1625 as a discontinued TBX7 relay-output module with a concrete remote-I/O role; verify lifecycle and circuit requirements before sourcing.

Next action: Match the exact reference, relay contact load, PLC architecture, wiring, and available legacy support against the cited documents.

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