Description
The ABB Tmax XT2N 125 / XT2N 160 with Ekip LS/I (Electronic Release) and order reference 1SDX271105R1 (typical XT2N 125, 3-pole, Fixed FF, In=100A, Ekip LS/I) are part of ABB’s Tmax XT series compact MCCBs for branch circuit protection in LV distribution boards. The XT2N 125 frame size handles rated currents up to 125 A (In adjustable via electronic release — here In = 100 A), while XT2N 160 shares the same physical size but rates to 160 A frame. Both use the Ekip LS/I (Line & Phase / Instantaneous) electronic trip unit providing:
- L (Long-time / overload) protection — adjustable Ir (0.4–1 × In) & tr (delay 1.5–24 × IEC std.)
- S (Short-time / short-circuit instantaneous) protection — adjustable Isd (1.5–10 × Ir) & tsd (fixed or 0.1 s — instantaneous)
- I (Instantaneous / high-mag short-circuit) — fixed or adjustable Ii (typically 10–15 × In for LS/I type)
The XT2N is a size 2 (compact 105 mm × 130 mm × 86 mm approx.) breaker with high breaking capacity (typically 50 kA @ 415V AC for XT2N — check suffix/certificate), front-operated toggle, and fixed (FF) or withdrawable mounting.
Key Features
- Frame Size: XT2N 125 (In ≤ 125 A) / XT2N 160 (In ≤ 160 A — same outer dims)
- Trip Unit: Ekip LS/I — electronic overload + short-circuit protection (adjustable via DIP/display on some Ekip versions)
- Poles: 3-pole (3p)
- Rated Current (In): 100 A (example — Ekip LS/I allows setting Ir from 40–100 A on this 100A-rated release)
- Breaking Capacity: Typically 50 kA @ 415V AC (Icu) — Ics = 50%–100% Icu per IEC 60947-2
- Mounting: Fixed (FF — Flush Fixed) — also avail. as Plug-in (PK) or Draw-out (WO)
- Country of Origin: Italy / Germany (ABB Global)
Model / Variant Reference Table
ABB Designation / Example | Frame | In (Rated) | Trip Unit | Poles | Mounting |
|---|---|---|---|---|---|
XT2N 125 Ekip LS/I In=100A 3p FF (1SDX271105R1 typical) | XT2N 125 | 100 A (Ir adj. 40–100 A) | Ekip LS/I (Elec.) | 3 | Fixed Flush (FF) |
XT2N 160 Ekip LS/I In=125A 3p FF | XT2N 160 | 125 A (Ir adj. 50–125 A) | Ekip LS/I | 3 | Fixed Flush (FF) |
XT2N 125 Ekip LSI (with S-I time delay) | XT2N 125 | per order | Ekip LSI (adds delayed short-time) | 3 | FF / PK |
XT2N 125 Ekip LI (Inst. only, no S adjust) | XT2N 125 | per order | Ekip LI (basic elec.) | 3 | FF |
⚠️ Important Selection / Verification:
Technical Specifications (Representative — XT2N 125, In=100A, Ekip LS/I, 3p, 50kA @415V)
Parameter | Specification |
|---|---|
Model / Order Example | XT2N 125 Ekip LS/I In=100A 3p FF — ABB 1SDX271105R1 |
Frame Size | XT2N 125 (also avail. XT2N 160 — same outer dims, higher In) |
Rated Current (In) | 100 A (Ekip LS/I release — Ir adjustable 40–100 A) |
Rated Insulation Voltage (Ui) | 800 V AC |
Rated Impulse Withstand (Uimp) | 8 kV |
Rated Operational Voltage (Ue) | up to 690 V AC (50/60 Hz) |
Breaking Capacity (Icu) @ 415V | 50 kA (typical for XT2N — verify cert.) |
Service Breaking Cap. (Ics) | 50%–100% Icu (per IEC 60947-2 — typ. 50% = 25 kA or 100% = 50 kA depending on cert.) |
Trip Unit Type | Ekip LS/I — Electronic overload (L) + Short-circuit inst. (I) with S-setting (Isd adj.) |
Overload Setting (Ir) | 0.4–1.0 × In (40–100 A for this unit) |
Short-Circuit Setting (Isd) | 1.5–10 × Ir (adjustable) |
Instantaneous Setting (Ii) | Fixed or 10–15 × In (typical LS/I) |
Poles | 3 (Three-pole) |
Mounting | Fixed Flush (FF) — screws to DIN rail or panel — also Plug-in (PK) / Withdrawable (WO) options |
Dimensions (W×H×D) | ~ 105 mm × 130 mm × 86 mm (XT2 frame) |
Weight | ~ 1.3 kg |
Standards | IEC 60947-2, EN 60947-2, UL 489 (selected variants), CSA C22.2 No. 5, CE, RoHS |
Warranty & After-Sales
- Factory new units: 12 months warranty
- Refurbished units: 3-6 months warranty (trip-test on secondary inj. tester)
- Technical support for:
- Complete ABB order code verification (frame / In / trip type / breaking cap. / accessories)
- Ekip LS/I Ir & Isd setting dial/DIP configuration
- Accessory selection (aux. contact SOR/SOT 1NO+1NC, shunt trip UT, UVR)
- Busbar / lug torque & phase arrangement
- Cross-reference vs. Siemens 3VL / Schneider Compact NSX / Eaton NZM if required
- Spare parts & alternative trip units (Ekip LSI / LI / DI — if upgrade needed)
Delivery Time
- Standard delivery: 3-5 working days (stock configurations)
- Express shipping available upon request
Why Choose Our Store
- Genuine ABB Tmax XT MCCBs — not re-badged generics
- Global supply network with competitive pricing
- LV switchgear selection & coordination study support (Icu/Ics, selectivity)
- Comprehensive technical documentation (dimensions, setting table, accessory guide)
- Responsive customer service and support
Applications
- LV Distribution Boards (MDB / SMDB): Branch circuit protection for feeders to sub-boards / large motors / UPS
- Machine / OEM Panels: Main incomer or sub-feeder for 30–100 A loads
- HVAC / Pump Panels: Protect 3-phase motors up to ~45 kW (with appropriate contactor/OL downstream for motor starter combo)
- Retrofit: Replace older SACE Isomax S2 / S3 or competitor MCCBs
- Generator / UPS Output: Overcurrent protection on 24–100 A branches
Reviews
There are no reviews yet.