ABB SACE T7S 1250 3 POLE CIRCUIT BREAKER 1250 AMPS 690VAC
Condition: Used, Tested
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ABB SACE Tmax T7S 1250 is a heavy‑duty 3‑pole molded case circuit breaker designed for reliable protection of low‑voltage power distribution systems up to 690 V AC with a rated current of 1250 A. Equipped with an electronic PR231/P LS/I trip unit, it provides precise long‑time, short‑time and instantaneous protection, making it suitable for use as a main or feeder breaker in industrial panels, switchboards and MCCs.
Its robust construction, high short‑circuit breaking capacity and compact 210 × 268 mm footprint allow easy integration into existing installations while ensuring safe operation and long service life in demanding environments.
ABB T7S 1250 Circuit Breaker Technical Specifications
| Parameter | Value / Description |
|---|---|
| Series / type | SACE Tmax T7S molded case CB |
| Poles | 3‑pole, fixed, front terminals |
| Rated current In | 1250 A at 40 °C |
| Rated operational voltage Ue | 690 V AC |
| Rated insulation voltage Ui | 1000 V |
| Trip unit | PR231/P LS/I electronic (L, S, I) |
| Ics at 220/230 V AC | 85 kA |
| Ics at 380–440 V AC | 50 kA |
| Icw (1 s) | 20 kA |
| Standards | IEC 60947‑2 |
| Dimensions (W × H × D) | 210 × 268 × ~178 mm |
| Approx. weight | 11 kg |
| Short‑circuit performance level | S (standard/high) |
Dimensions and weight
For the 3‑pole fixed version with front terminals:
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Width: 210 mm.
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Height: 268 mm.
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Depth: approx. 178 mm (net depth from ABB datasheet; some commercial sheets round 154–178 mm depending on version).
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Net weight: about 11 kg.
Ratings and performance
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Rated current of main circuit: 1250 A at reference ambient 40 °C
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Utilization category: Power distribution MCCB, 50/60 Hz AC
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Short‑circuit performance level: Type “S” (standard/high breaking capacity for T7 family)
Breaking and short‑time ratings (IEC 60947‑2)
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Rated service short‑circuit breaking capacity Ics:
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220 V AC: 85 kA
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230 V AC: 85 kA
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380–440 V AC: 50 kA (specified at 380, 400, 415, 440 V)
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Rated short‑time withstand current Icw (1 s): 20 kA
Mechanical, thermal and construction data
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Product type: Molded Case Circuit Breaker, toggle/lever operating mechanism, stored‑energy type for “M” versions
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Number of poles: 3
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Power loss: 47 W per pole at rated conditions
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Mechanical durability: 10,000 operating cycles.
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Electrical durability: 2,000 operating cycles at rated current (typical value in ABB datasheet for this model)
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RETURNS ACCEPTED IN 30 DAYS. BUYER PAYS THE SHIPPING CHARGES. RESTOCKING FEES 20%.
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