
Illustration - our own representative render, not a photograph; see the datasheet for exact details.
Terasaki S800-NE 630A 4-Pole Electronic MCCB, TemBreak 2 800A Frame, 50kA (812309)
- Brand:
- Terasaki
- Part number:
- 812309
TemBreak 2 S800-NE MCCB with a microprocessor trip unit, 630 A, 4-pole, rated 50 kA Icu and Ics at 400/415 V AC, utilisation category B with a 10 kA short-time withstand. Terasaki part number 812309.
- 630 A, 4-pole electronic MCCB, TemBreak 2 800 A frame
- Icu and Ics 50 kA at 400/415 V AC
- IR 0.4 to 1.0 x In, seven selectable characteristics
- Category B, Icw 10 kA for 0.3 s
- Incomer for 800 A 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 | 630 A |
|---|---|
| Poles / neutral | 4 pole |
| Frame size | 800 A |
Protection
| Trip unit | Electronic |
|---|---|
| Breaking capacity (Icu) | 50 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 | 812309 |
| Range | Terasaki TemBreak2 |
More technical data
| Series | TemBreak 2 S800-NE, 800 A frame, 4-pole |
|---|---|
| In | 630 A at 50 °C; electronic (microprocessor) trip; utilisation category B |
| Icu/Ics at 400/415 V AC | 50/50 kA; at 690 V AC: 20/20 kA (not for IT systems at 690 V) |
| Icw | 10 kA for 0.3 s |
| Ue | 690 V AC 50/60 Hz; Ui 800 V; Uimp 8 kV |
| Dimensions (W x H x D) | 280 x 273 x 103 mm; weight 11.9 kg |
| Endurance | 4,000 electrical (690 V AC), 10,000 mechanical operations |
Product details
The Terasaki S800-NE 812309 is a 630 A, 4-pole electronic MCCB on the TemBreak 2 800 A frame, rated 50 kA Icu and Ics at 400/415 V AC. As a category B device with Icw 10 kA for 0.3 s, its short-time delay can be used to discriminate with the outgoing devices below it.
Key features
- Long-time pick-up IR adjustable in seven steps, 0.4 to 1.0 x In (252 A to 630 A)
- Seven selectable characteristics set the long-time delay, short-time pick-up (2.5, 5 or 10 x IR) and short-time delay (0.1 or 0.2 s)
- Instantaneous trip at 14 x IR, capped at 12 x In
- Front connection; extension bars, cable clamps (630 A only), rear connection and plug-in optional
Typical applications
Incoming device for an 800 A Resilience Plus panel board, fitted in the board's separate incomer housing (sold separately), where adjustable electronic settings help grade the incomer between the upstream protection and the outgoing MCCBs. The fourth pole switches the neutral with the phases. Use the Panel Builder to place it at the head of a complete board.
Compliance
On the S800-NE datasheet the electrical characteristics are stated to IEC 60947-2 and EN 60947-2, alongside JIS C 8201-2-1, AS/NZS 3947-2 and NEMA AB-1 values.
Accessories that fit: toggle lock 037306; connection bars 067938 and 067945; terminal covers 045769, 045776, 081040 and 081057; interpole barrier 043338. Interpole barriers and standard terminal covers cannot be fitted together.
Genuine Terasaki product. Add it to your cart, or ask us about project quantities.



