Terasaki 000744 Alarm Switch (AL), for TemBreak 2 MCCBs up to 400A
- Brand:
- Terasaki
- Part number:
- 000744
Internal alarm switch (AL) that signals when a TemBreak 2 MCCB on the 160 A, 250 A or 400 A frame has tripped. Terasaki part number 000744.
- Signals a tripped breaker, not a manual switch-off
- Pairs with an AX to tell trips from OFF
- For TemBreak 2 160 A, 250 A and 400 A frames
- Internal, field-fittable accessory
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
Fit
| Fits device | Terasaki S160-NF, Terasaki S160-NJ, Terasaki S160-GJ, Terasaki S250-NJ, Terasaki S250-GJ, Terasaki S250-NE, Terasaki S250-GE, Terasaki S400-NN, Terasaki S400-NJ, Terasaki S400-NE |
|---|---|
| Fits MCCB frame | 160 A, 250 A, 400 A |
| Panelboard range | Resilience Standard, Resilience PlusWhat does this mean?Incomer and outgoing ways in one wall-mounted board. 250 A or 400 A busbars, 4 to 18 outgoing ways, outgoing MCCBs up to 125 A, Form 3b Type 2, doors included. 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 | 000744 |
| Range | Terasaki TemBreak2 |
| Type | Alarm switch |
More technical data
| Type | alarm switch (AL), internal |
|---|---|
| Signals | breaker tripped |
| Breaker frames | 160 A, 250 A and 400 A TemBreak 2 |
| Shares a breaker with | an auxiliary switch plus either a shunt trip or an under-voltage release |
| Supplied | one switch with fitting instructions |
Product details
The Terasaki 000744 alarm switch (AL) flags a tripped breaker. Installed inside a TemBreak 2 MCCB on the 160 A, 250 A or 400 A frame, it ignores normal switching and changes state only when the breaker trips, so a fault can be reported remotely without raising an alarm every time someone switches the circuit off.
Key features
- Reacts to a trip only, not to deliberate ON or OFF operation
- Sits in its own pocket under the breaker's front cover: unclip the cover with a screwdriver and push the switch home until it clicks
- Field-fittable, and colour-coded so it is easy to tell apart from an auxiliary switch
- Terminates on its own screw terminals or on an optional terminal block clipped to the side of the breaker
- Endurance tested to the same level as the breaker; packed singly with instructions
Typical applications
Trip alarms to a BMS or SCADA system, fault beacons and sounders, alarm inputs on generator, UPS and plant control panels, and remote fault reporting from unmanned switchrooms. Wired together with an auxiliary switch, it lets a control system tell a breaker switched off by hand from one that has tripped on a fault.
For TemBreak 2 S160-NF, S160-NJ, S160-GJ, S250-NJ, S250-GJ, S250-NE, S250-GE, S400-NJ and S400-NE MCCBs and the S400-NN switch-disconnector, including those in Resilience Standard and Resilience Plus panel boards. General-purpose and heavy-duty status switches cannot be combined in one breaker, so if switches are already fitted, check the type with us first.
Genuine Terasaki product. Add it to your cart and fit it the next time the breaker is isolated.