3VL3725-1AA46-0AA0 Siemens VL molded-case circuit breaker

Clean-room evidence identifies 3VL3725-1AA46-0AA0 as Siemens VL molded-case circuit breaker. The Siemens product data sheet identifies the exact reference as a three-pole VL circuit breaker rated 250 A for systems up to 690 V AC.

Documented identity and function

Rebuilt from individual evidence

System position

The Siemens product data sheet identifies the exact reference as a three-pole VL circuit breaker rated 250 A for systems up to 690 V AC.

The same data sheet lists 55 kA Icu at 415 V, fixed mounting, and screw-type main terminals for the exact reference.

The system path is inferred as the upstream low-voltage source, then 3VL3725-1AA46-0AA0, then the protected three-phase feeder.

Unknown: installation compatibility, configuration, and unit condition are not established by the captured sources.

Exact reference: 3VL3725-1AA46-0AA0
Category: PLC / CPU
Evidence checked: 2026-09-11

System role

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

Function: The VL molded-case circuit breaker protects and switches a three-phase feeder against documented overload and short-circuit conditions.
System position: It intervenes between the upstream low-voltage source and the protected three-phase feeder in the documented system path.
Upstream / inputs: Inputs or upstream: the upstream low-voltage source.
Downstream / outputs: Outputs or downstream: the protected three-phase feeder.
Limitations: Unknown: installation compatibility, configuration, and unit condition are not established by the captured sources.

Evidence ledger

Facts, inferences, and unknowns are kept separate.

Facts

The Siemens product data sheet identifies the exact reference as a three-pole VL circuit breaker rated 250 A for systems up to 690 V AC.
Confidence: high
- files.kempstoncontrols.com — retrieved 2026-09-11; high confidence
The same data sheet lists 55 kA Icu at 415 V, fixed mounting, and screw-type main terminals for the exact reference.
Confidence: high
- files.kempstoncontrols.com — retrieved 2026-09-11; high confidence

Inferences

Inferred system position: 3VL3725-1AA46-0AA0 intervenes between the upstream low-voltage source and the protected three-phase feeder.
Confidence: medium
Rationale: The exact-reference sources identify the component function and its connected interfaces; the intervening system position is an inference from those facts.
- files.kempstoncontrols.com — retrieved 2026-09-11; high confidence

Unknowns

Unknown: installation compatibility, configuration, and unit condition are not established by the captured sources.
Confidence: low
Missing evidence: No captured source provides the receiving system configuration, firmware, wiring, or unit condition.

System position diagram

Diagram showing 3VL3725-1AA46-0AA0 between the upstream low-voltage source and the protected three-phase feeder. — System path inferred from the documented function of 3VL3725-1AA46-0AA0.

View Mermaid source

flowchart LR
  U["Upstream"] --> P["3VL3725-1AA46-0AA0"]
  P --> D["Downstream"]

View diagram labels

Nodes: Upstream: the upstream low-voltage source; Device: 3VL3725-1AA46-0AA0; Downstream: the protected three-phase feeder
Edges: The upstream path feeds 3VL3725-1AA46-0AA0.; 3VL3725-1AA46-0AA0 feeds the downstream path.

Next action

Publishable as a clean-room evidence record for 3VL3725-1AA46-0AA0; verify the installation against current documentation.

Confirm voltage, wiring, accessories, and service condition against the installation before substitution.

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