
Eaton
Eaton NS1-125-NA
Part numberNS1-125-NAEAN / GTIN4015081025435HS code8536.20
Electrical Components
Moulded Case Circuit Breakers
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Overview
Eaton NS1-125-NA is listed under Electrical Components / Moulded Case Circuit Breakers. Sales unit: pcs; Eaton catalogue number: 102683; Depth: 88 mm; Height: 145 mm; Width: 90 mm; Weight: 1.046 kg.
Technical Specifications
- Manufacturer part number (MPN)
- NS1-125-NA
- EAN / GTIN
- 4015081025435
- Sales unit
- pcs
- Eaton catalogue number
- 102683
- Depth
- 88 mm
- Height
- 145 mm
- Width
- 90 mm
- Weight
- 1.046 kg
- Compliances
- RoHS conform
- Certifications
- IEC 60947-2; UL/CSA; CE marking; CSA (Class No. 4652-06); UL 489; UL listed; CSA-C22.2 No. 5-09; Specially designed for North America; IEC; UL (Category Control Number WJAZ); CSA (File No. 22086); UL (File No. E148671); CSA certified
- Functions
- Disconnectors/main switches
- Amperage Rating
- 125 A
- Application
- Branch circuits, feeder circuits
- Circuit breaker frame type
- N1
- Features
- Protection unit
- Number of poles
- Three-pole
- Special features
- IEC/EN 60947-2: circuit breakers without overcurrent (CBI-X) with main switch characteristics and isolating characteristics to IEC/EN 60204. Rated current = rated uninterrupted current: 125 A Terminal capacity hint: Up to 95 mm² can be connected depending on the cable manufacturer.
- Type
- Switch-disconnector
- Ambient operating temperature - max
- 70 °C
- Ambient storage temperature - max
- 70 °C
- Ambient operating temperature - min
- -25 °C
- Equipment heat dissipation, current-dependent
- 26.34 W
- Rated operational current for specified heat dissipation (In)
- 125 A
- Current rating (Iu) (UL 489 csa 22.2 no. 5.1)
- 125 A
- Direction of incoming supply
- As required
- Electrical connection type of main circuit
- Frame clamp
- Handle type
- Rocker lever
- Instantaneous current setting (Ii) - max
- 1250 A
- Instantaneous current setting (Ii) - min
- 1250 A
- Lifespan, electrical
- 10000 operations at 400 V AC-1; 10000 operations at 415 V AC-1; 7500 operations at 690 V AC-1
- Number of operations per hour - max
- 120
- Overvoltage category
- III
- Pollution degree
- 3
- Rated current (Iu)
- 125 A
- Rated impulse withstand voltage (Uimp) at auxiliary contacts
- 6000 V
- Rated impulse withstand voltage (Uimp) at main contacts
- 6000 V
- Rated insulation voltage (Ui)
- 690 V AC
- Rated operating voltage Ue (UL) - max
- 480 Y / 277 V
- Rated short-circuit making capacity Icm at 240 V
- 50/60 Hz
- 187 kA
- Rated short-circuit making capacity Icm at 400/415 V
- 50/60 Hz
- 105 kA
- Rated short-circuit making capacity Icm at 440 V
- 50/60 Hz
- 74 kA
- Rated short-circuit making capacity Icm at 525 V
- 50/60 Hz
- 53 kA
- Rated short-circuit making capacity Icm at 690 V
- 50/60 Hz
- 17 kA
- Short-circuit release non-delayed setting - max
- 1250 A
- Short-circuit release non-delayed setting - min
- 1250 A
- Short-circuit total breaktime
- < 10 ms
- Voltage rating
- 690 V - 690 V
- Degree of protection
- IP20; In the area of the HMI devices: IP20 (basic protection type)
- Degree of protection (IP), front side
- IP66 (with door coupling rotary handle); IP40 (with insulating surround)
- Degree of protection (terminations)
- IP10 (tunnel terminal); IP00 (terminations, phase insulator and band terminal)
- Lifespan, mechanical
- 20000 operations
- Mounting Method
- DIN rail (top hat rail) mounting optional; Built-in device fixed built-in technique; Fixed
- Number of auxiliary contacts (change-over contacts)
- 0
- Number of auxiliary contacts (normally closed contacts)
- 0
- Number of auxiliary contacts (normally open contacts)
- 0
- Position of connection for main current circuit
- Front side
- Switch positions
- I, +, 0
- Optional terminals
- Connection on rear. Screw terminal. Tunnel terminal
- Standard terminals
- Box terminal
- Terminal capacity (aluminum solid conductor/cable)
- 10 mm² - 16 mm² (1x) direct at switch rear-side connection; 10 mm² - 16 mm² (2x) direct at switch rear-side connection; 16 mm² (1x) at tunnel terminal
- Terminal capacity (aluminum stranded conductor/cable)
- 25 mm² - 35 mm² (2x) direct at switch rear-side connection; 25 mm² - 95 mm² (1x) at 1-hole tunnel terminal; 25 mm² - 35 mm² (1x) direct at switch rear-side connection
- Terminal capacity (copper strip)
- Min. 2 segments of 9 mm x 0.8 mm at box terminal; Max. 9 segments of 9 mm x 0.8 mm at box terminal
- Document Name
- Description Action
- Rated permanent current Iu
- 125 A
- With integrated under voltage release
- No
- Rated voltage
- 690 V
- Power loss
- 26.3 W
- Motor drive integrated
- No
- Type of electrical connection of main circuit
- Frame clamp
- Type of control element
- Rocker lever
- With switched-off indicator
- No
- Rated short-circuit breaking capacity Icu at 400 V, 50 Hz
- 50 kA
- Adjustment range undelayed short-circuit release
- 1250 A
- Suitable for DIN rail (top hat rail) mounting
- No
- Integrated earth fault protection
- No
- Motor drive optional
- No
- Device construction
- Built-in device fixed built-in technique
- DIN rail (top hat rail) mounting optional
- Yes
- Complete device with protection unit
- Yes
- Country of origin
- Romania
Standards & Compliance
- HS Code
- 8536.20
Cross References
- EAN 4015081025435
- SAP 1000221788
- Code 81114915
Product Documentation
Document preview: Eaton NS1-125-NA — Specification Data Sheet (OEM)
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Technical guides
Catalogue entry last verified: 2026-09-30. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy NS1-125-NA?
- NS1-125-NA can be ordered from cballast.com as a Eaton catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this Eaton product?
- The manufacturer part number is NS1-125-NA.
- What is the HS code for NS1-125-NA?
- The customs tariff (HS) code for NS1-125-NA is 8536.20.
- Who manufactures NS1-125-NA?
- NS1-125-NA is a Eaton product in the Electrical Components range.
- Is a datasheet available for NS1-125-NA?
- Yes — the NS1-125-NA datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for NS1-125-NA?
- The minimum order quantity is 1.
- Is NS1-125-NA available?
- Yes — NS1-125-NA is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).
