Terasaki 002557 Alarm Switch (AL) Left Pole, for TemBreak 2 Lite 160A and 250A Frames
- Brand:
- Terasaki
- Part number:
- 002557
Internal trip-alarm switch for TemBreak 2 Lite 160 A and 250 A frame breakers; its changeover contact operates only when the breaker trips. Left-pole version, Terasaki part number 002557.
- Operates on a trip only, not on manual switching
- One changeover contact (91, 92, 94)
- Left-pole version
- 3 A resistive at 250 V AC
- Fits 160A and 250A Lite frames
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 E160-SF, Terasaki S160-SCJ, Terasaki E250-SJ, Terasaki S250-SN, Terasaki S250-SJ |
|---|---|
| Fits MCCB frame | 160 A, 250 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 | 002557 |
| Range | Terasaki TemBreak2 Lite |
| Type | Alarm switch |
More technical data
| Contact | 1 changeover; terminals 91 (common), 92 and 94 |
|---|---|
| Second alarm switch, where fitted | terminals 01, 02 and 04 |
| AC rating, resistive / inductive load | 3 A / 2 A at 250 V and at 125 V |
| DC rating, resistive / inductive load | 0.4 A / 0.05 A at 125 V; 3 A / 2 A at 30 V |
| Minimum load | 15 V DC, 100 mA |
| Position | left pole |
Product details
The Terasaki 002557 alarm switch (AL) reports that a TemBreak 2 Lite breaker on the 160 A or 250 A frame has tripped. Its changeover contact ignores normal on and off switching and changes state only on a trip, so a remote alarm is raised for faults rather than for routine operation. This is the left-pole version.
Key features
- Trip-only signal: 91-94 closes when the breaker trips, while in the on and off positions 91-94 stays open and 91-92 closed
- Left-pole version: a breaker can take two alarm switches, and the second, right-pole switch is a different Terasaki part
- Internal accessory, fitted under the breaker's single-screw accessory cover
- One part for both the 160 A and the 250 A frame
- Combines with auxiliary switches and with either a shunt trip or an under-voltage release
Typical applications
Trip alarms to a building management system or SCADA, a fault lamp or sounder on the panel, and critical outgoing ways in a Resilience board where the operator needs to know that a circuit went off on a fault, not by someone's hand. Fitted together with a shunt trip, it also confirms that a remote trip command has worked.
Fits TemBreak 2 Lite S160-SCJ breakers on the 160 A frame and the E250-SJ, S250-SJ and S250-SN on the 250 A frame.
Add it to your cart, or ask us if you also need the right-pole version for a second alarm contact.