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3VL7712-1SB36-0AA0

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The Siemens 3VL7712-1SB36-0AA0 is a three-pole SENTRON VL1250N circuit breaker with ETU10 LI line protection.
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Technical specifications for 3VL7712-1SB36-0AA0

  • Manufacturer:
    Siemens
  • Part Number:
    3VL7712-1SB36-0AA0
  • Product Family:
    SENTRON
  • Product Type:
    VL1250N Circuit Breaker
  • Stock:
    1
  • Poles:
    3
  • Rated Current In:
    1250A
  • Adjustable Current Ir:
    500–1250A
  • Trip Unit:
    ETU10
  • Trip Characteristic:
    LI
  • Breaking Capacity Icu:
    55kA at 415V AC
  • Short-Circuit Pickup:
    1.25–10×In
  • Auxiliary Release:
    Not included
  • Auxiliary / Alarm Switch:
    Not included
  • Weight:
    58.952 lbs (26.74 kg)
  • Estimated shipping dimensions:
    50×30×25cm
  • Tariff Code:
    85362090
  • Country of origin:
    Mexico
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Trip Logic Current Window Breaking Duty Auxiliary Scope

Features:

  • The three-pole breaker combines switching with ETU10 electronic line protection.
  • Long-time overload pickup and instantaneous short-circuit pickup are adjusted as different decisions.
  • The supplied order configuration excludes auxiliary release and auxiliary/alarm-switch functions.
Continuous current establishes the load-carrying basis, while interrupting capacity describes the fault current the breaker can clear at the stated system voltage.

The LI characteristic separates the overload response from the instantaneous response without adding a separate short-time-delay stage.

Accessory omissions do not remove the ETU10 protection functions; they define which remote release and signaling circuits are outside the supplied scope.

The Siemens 3VL7712-1SB36-0AA0 SENTRON VL1250N Circuit Breaker may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 3VL7712-1SB36-0AA0 SENTRON VL1250N Circuit Breaker Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

How the ETU10 trip decisions are separated

  • Long-time function: The L element responds to sustained overload according to the selected Ir pickup.
  • Instantaneous function: The I element reacts when fault current crosses the instantaneous threshold.
  • No S stage: The LI characteristic does not insert a separate short-time-delay function between L and I.
  • Electronic evaluation: The ETU10 trip unit evaluates current for both documented protection functions.

How the current settings relate to the breaker rating

  • Rated current: The breaker configuration is rated at 1250 A In.
  • Overload window: Ir can be adjusted from 500 to 1250 A without changing the frame configuration.
  • Instantaneous window: Short-circuit pickup is adjustable from 1.25 to 10 times In.
  • Setting distinction: Ir governs long-time pickup, while the multiple of In belongs to instantaneous operation.

How breaking duty differs from load current

  • Interrupting rating: Icu is 55 kA at 415 V AC for the documented breaker configuration.
  • Meaning: The kA figure describes fault interruption and is not the continuous-load setting.
  • Pole arrangement: All three poles participate in the protected line path.
  • Coordination point: Cable, system, and upstream-device checks must use the correct continuous-current and fault-duty values.

What the supplied accessory scope excludes

  • Auxiliary release: No auxiliary release is included in this order configuration.
  • Signaling contact: No auxiliary/alarm switch is included.
  • Protection retained: The ETU10 long-time and instantaneous functions remain part of the breaker.
  • Wiring boundary: Remote release or status circuits require separately documented accessories rather than assumed terminals on this unit.
Description
Built around an ETU10 electronic trip unit, Siemens 3VL7712-1SB36-0AA0 is a three-pole SENTRON VL1250N circuit breaker that switches the protected line and responds to overload and instantaneous short-circuit conditions.

Protection settings on 3VL7712-1SB36-0AA0 separate the long-time pickup from the instantaneous trip threshold, allowing the overload response to be adjusted without confusing it with the breaker's interrupting-duty rating.

The supplied 3VL7712-1SB36-0AA0 retains its ETU10 LI protection functions but does not include an auxiliary release or an auxiliary/alarm switch, so those signaling and release accessories are outside this order configuration.
Alternative Names
3VL77121SB360AA0 3VL7712 1SB36 0AA0 3VL 7712-1SB36-0AA0 Siemens 3VL7712-1SB36-0AA0 3VL7712-1SB36-0AA0 VL1250N SENTRON VL1250N 3VL7712-1SB36-0AA0 Siemens 3VL77121SB360AA0 3VL77I2-1SB36-OAAO
Technical notes
Siemens 3VL7712-1SB36-0AA0 is a three-pole VL1250N breaker with ETU10 LI line protection and adjustable overload and short-circuit thresholds.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which rating of 3VL7712-1SB36-0AA0 should be used for continuous load current rather than fault interruption?
Use the 1250 A In rating of 3VL7712-1SB36-0AA0 for continuous current; the 55 kA value describes breaking capacity at 415 V AC.
Can the overload pickup of 3VL7712-1SB36-0AA0 be reduced without changing its frame rating?
Yes. The Ir setting on 3VL7712-1SB36-0AA0 adjusts from 500 to 1250 A while the breaker remains the 1250 A configuration.
How are overload and instantaneous fault settings separated on 3VL7712-1SB36-0AA0?
The ETU10 in 3VL7712-1SB36-0AA0 uses the adjustable Ir value for long-time overload response and a separate 1.25–10×In pickup for instantaneous faults.
Does the LI characteristic of 3VL7712-1SB36-0AA0 include a short-time-delay stage?
No. The LI characteristic on 3VL7712-1SB36-0AA0 provides long-time and instantaneous protection rather than a separate short-time-delay stage.
What remains active on 3VL7712-1SB36-0AA0 when no auxiliary release is supplied?
The ETU10 protection functions remain part of 3VL7712-1SB36-0AA0; the omitted auxiliary release is a separate accessory function.
Which signaling accessory is absent from the documented 3VL7712-1SB36-0AA0 configuration?
The documented 3VL7712-1SB36-0AA0 scope excludes the auxiliary/alarm switch as well as the auxiliary release.