Illustration - our own representative render, not a photograph; see the datasheet for exact details.
Terasaki S250-NE 250A 3-Pole Electronic MCCB, TemBreak 2 250A Frame, 36kA (331909)
- Brand:
- Terasaki
- Part number:
- 331909
Three-pole, 250 A TemBreak 2 S250-NE electronic moulded-case circuit breaker with a current setting of 100 A to 250 A and 36 kA Icu and Ics at 400/415 V AC. Terasaki part number 331909.
- 250 A, 3-pole, TemBreak 2 250 A frame
- Electronic trip, current setting 100-250 A
- Icu 36 kA, Ics 36 kA at 400/415 V AC
- Short-time pick-up and delay settings
- Outgoing device for Resilience Plus boards
Available to order
UK delivery £9.95 ex VAT, free on orders of £100 ex VAT or more; usually 3-5 working days.
Minimum order £50 ex VAT. All prices exclude VAT, which is added at checkout.
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Specifications
Electrical
| Rated current | 250 A |
|---|---|
| Poles / neutral | 3 pole |
| Frame size | 250 A |
Protection
| Trip unit | Electronic |
|---|---|
| Breaking capacity (Icu) | 36 kA |
Fit
| Panelboard range | Resilience PlusWhat does this mean?Modular: a separate incomer housing beside the panel board, with add-on enclosures and cableways. 400 A or 800 A busbars, 6 to 18 outgoing ways, outgoing MCCBs up to 250 A (400 A on the twin board), Form 3a or 3b Type 2, doors optional. |
|---|
Identification
| Brand | Terasaki |
|---|---|
| Part number | 331909 |
| Range | Terasaki TemBreak2 |
More technical data
| Series | TemBreak 2 S250-NE, 250 A frame, 3 poles |
|---|---|
| Rated current In | 250 A at 50 °C; current setting 100-250 A |
| Trip unit | electronic (microprocessor) |
| Icu / Ics at 400/415 V AC | 36 kA / 36 kA |
| Ue | 690 V AC (50/60 Hz), AC only; Ui: 800 V; Uimp: 8 kV |
| Utilisation category | A |
| Connection | front, M8 terminal screws (lug or bar up to 25 mm wide, 7 mm thick) |
| Dimensions (W x H x D) | 105 x 165 x 103 mm; weight 2.3 kg |
| Endurance at 415 V AC | 30,000 cycles electrical and mechanical |
Product details
Terasaki S250-NE 331909 is a 250 A, 3-pole TemBreak 2 electronic moulded-case circuit breaker on the 250 A frame, rated 36 kA Icu and Ics at 400/415 V AC, with a current setting from 100 A to 250 A. It is one of Terasaki's outgoing devices for Resilience Plus 6, 12 and 18 way boards.
Key features
- Electronic trip: current setting IR from 0.4 to 1.0 x In in seven steps
- Five selectable characteristics set the long-time delay, short-time pick-up (2.5, 5 or 10 x IR) and delay (0.1 or 0.2 s)
- Instantaneous trip at 14 x IR, capped at 13 x In
- Icu and Ics both 36 kA at 400/415 V AC
Typical applications
The wide range lets one breaker serve a 125 A, 200 A or 250 A feeder (0.5, 0.8 or 1.0 x In), useful while loads are being finalised. Typical duties: sub-board feeders and large plant. Above 36 kA prospective fault current, use the S250-GE 250 A (332203, 65 kA). Our Panel Builder builds the board around it, with a parts list.
Compliance
Electrical characteristics to IEC 60947-2 and EN 60947-2 (Terasaki datasheet).
Accessories that fit: auxiliary switch 000348, alarm switch 000744, a shunt trip or an under-voltage release (one trip-coil pocket, so not both), terminal covers 080517 and 080654, cable clamps 081354 and 080586, and toggle lock 037016.
Genuine Terasaki product. Add it to your cart, or contact us about a board schedule.
