Illustration - our own representative render, not a photograph; see the datasheet for exact details.
Terasaki S250-NJ 250A 3-Pole MCCB, TemBreak 2 250A Frame, 36kA (312038)
- Brand:
- Terasaki
- Part number:
- 312038
Three-pole, 250 A TemBreak 2 S250-NJ moulded-case circuit breaker with adjustable thermal-magnetic protection and 36 kA Icu and Ics at 400/415 V AC. Terasaki part number 312038.
- 250 A, 3-pole, TemBreak 2 250 A frame
- Icu 36 kA, Ics 36 kA at 400/415 V AC
- Adjustable thermal and magnetic trips
- Front connection, M8 terminals
- 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.
Project quantities or a lead time to check? Request a quote
Specifications
Electrical
| Rated current | 250 A |
|---|---|
| Poles / neutral | 3 pole |
| Frame size | 250 A |
Protection
| Trip unit | Thermal-magnetic |
|---|---|
| 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 | 312038 |
| Range | Terasaki TemBreak2 |
More technical data
| Series | TemBreak 2 S250-NJ, 250 A frame, 3 poles |
|---|---|
| Rated current In | 250 A at 50 °C |
| Trip unit | adjustable thermal-magnetic |
| Icu / Ics at 400/415 V AC | 36 kA / 36 kA |
| Icu at 440 V AC | 25 kA; at 250 V DC: 40 kA |
| Ue | 690 V AC (50/60 Hz) and 250 V DC; 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 68 mm; weight 1.5 kg |
| Endurance at 415 V AC | 10,000 electrical and 30,000 mechanical cycles |
Product details
Terasaki S250-NJ 312038 is a 250 A, 3-pole TemBreak 2 moulded-case circuit breaker at the full rating of the 250 A frame, with adjustable thermal and magnetic trips and 36 kA Icu and Ics at 400/415 V AC. It is one of Terasaki's outgoing devices for Resilience Plus 6, 12 and 18 way boards.
Key features
- Thermal (overload) and magnetic (short-circuit) trips, both adjustable
- Icu and Ics both 36 kA at 400/415 V AC
- Suits AC systems to 690 V and DC to 250 V
- Compact body: 105 mm wide, 68 mm deep, 1.5 kg
Typical applications
250 A is the largest rating on the 250 A frame: main feeders to sub-boards, motor control centres or large plant. For fault levels above 36 kA, choose the S250-GJ 250 A (312236, 65 kA); for electronic protection, the S250-NE 250 A (331909). Our Panel Builder adds it to a Resilience Plus layout and 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 cover 080517, cable clamps 081354 and 080586, and toggle lock 037016.
Genuine Terasaki product. Add it to your cart, or ask us to quote a larger quantity.
