Siemens 3VL3725-3AA36-0AA0 VL250L Molded Case Circuit Breaker, 3‑Pole, ≤250 A (In), Icu 100 kA @ 415 V — No Electronic Trip Unit

Siemens 3VL3725-3AA36-0AA0 — VL250L Series Molded Case Circuit Breaker (No Electronic Trip Unit)

Overview

• Manufacturer: Siemens
• Model: 3VL3725-3AA36-0AA0 (VL250L family, size 3VL3)
• Type: Molded Case Circuit Breaker, 3‑pole, supplied without electronic trip unit (field-fit trip units or switching units can be mounted)
• Rated/continuous current: 250 A (In ≤ 250 A) — operating current 250 A at 40 °C / 50 °C per datasheet

Key electrical characteristics

• Maximum short‑circuit breaking capacity (Icu): 100 kA at 415 V AC (rated value)
• Operational short‑circuit current breaking capacity (Ics): 75 kA at 415 V AC
• Additional short‑circuit data (from datasheet):
  • Icu: 200 kA @ 240 V; 75 kA @ 440 V; 75 kA @ 480 V (NEMA); 50 kA @ 500 V; 12 kA @ 600 V; 12 kA @ 690 V
  • Ics: 150 kA @ 240 V; 38 kA @ 500 V; 6 kA @ 690 V
• Rated operational voltage Ue: up to 690 V AC (main circuit)
• Insulation voltage: 800 V; surge voltage resistance: 8 kV

Protection & function

• Delivered without thermal overload trip unit (no built‑in overcurrent release). Designed to accept separate electronic trip unit or switching unit per VL250L accessory list.
• Usage category: A; Performance class: N (IEC classification)
• No integrated auxiliary/alarm switch, trip indicator, undervoltage release or voltage trigger in this basic variant

Mechanical & environmental

• Number of poles: 3
• Circuit‑breaker size: 3VL3 (VL250L family)
• Electrical endurance (typical): 10,000 switching cycles
• Mechanical service life (typical): 20,000 switching cycles
• Dimensions (H×W×D): 185.5 mm × 104.5 mm × 106.5 mm
• Mounting: fixed mounting
• Protection class: IP20
• Ambient operating temperature: -25 °C … 70 °C
• Storage temperature: -40 °C … 80 °C

Connections & installation

• Main contact connection arrangement: front side
• Type of electrical connection (main): screw‑type terminals
• Compatible conductor cross‑sections and accessory trip units should be selected per Siemens product documentation

Notes & ordering

• Certificate of suitability: IEC, very high switching capacity (L).
• This variant is the VL250L high‑breaking version; verify required electronic trip unit, auxiliary contacts or motor drive accessories when ordering.
• Follow Siemens installation instructions and local codes; coordinate protection settings and system short‑circuit capacity using the Icu/Ics values.