Contactor,circuit breaker,solar inverter,electric meter,solar batteries
ABB SACE Emax E1 Series Fixed-type Air Circuit Breaker, rated current 1600A, equipped with PR121/P microprocessor-based electronic trip unit and three-stage LSI protection function.
- Model Code Definition
| Segment | Code | Description |
| E1N | E1N | Series identifier for ABB SACE Emax E1 fixed ACB; E1=series code, N=fixed mounting, B=draw-out mounting |
| 16 | 16 | Incoming frame current rating: 1600A frame size (8=800A, 10=1000A, 12=1250A, 16=1600A) |
| R1600 | R1600 | Rated current code: In=1600A (R800=800A, R1000=1000A, R1250=1250A, R1600=1600A) |
| PR121 | PR121 | Trip unit model: ABB PR121/P basic microprocessor trip unit supporting LI/LSI protection |
| LSI | LSI | Protection type for three-stage protection: L=Long time delay (overload), S=Short time delay (short-circuit), I=Instantaneous (short-circuit) |
- Core Technical Specification Table
| Category | Detailed Parameters | Standards & Certifications |
| Basic Ratings | • Product Series: SACE Emax E1 | IEC 60947-2 |
| • Device Type: Air Circuit Breaker (ACB) | GB 14048.2 | |
| • Mounting: Fixed type | CCC, CE, UL, CSA Approved | |
| • Poles: Optional 3P/4P | ||
| • Frame Current (Iu): 1600A | ||
| • Rated Current (In): 1600A | ||
| • Trip Unit: PR121/P-LSI (3-stage protection) | ||
| • Rated Operational Voltage (Ue): 690V AC, 50/60Hz | ||
| • Rated Insulation Voltage (Ui): 1000V AC | ||
| • Rated Impulse Withstand Voltage (Uimp): 12kV | ||
| • Ultimate Short-circuit Breaking Capacity (Icu): 50kA@415V AC, 42kA@690V AC | ||
| • Rated Service Short-circuit Breaking Capacity (Ics): 50kA@415V AC (100% of Icu) | ||
| Mechanical & Electrical Performance | • Mechanical Endurance: 10,000 operations | IEC 60947-1 |
| • Electrical Endurance: 500 operations at rated short-circuit breaking capacity | ||
| • Control Supply Voltage: 220V AC/DC (standard), optional 110V/400V | ||
| • Operation: Motor spring charging + motor closing/tripping, manual emergency operation available | ||
| • Auxiliary Contacts: Standard 2NO+2NC, expandable up to 10NO+10NC | ||
| • Wiring Capacity: Copper busbar 10×100mm², cable up to 300mm² | ||
| • Tightening Torque for Bolts: 50N·m | ||
| Physical Dimension | • Mounting: Vertical mounting (standard), optional horizontal mounting | IEC 60529 |
| • Overall Size(W×H×D): 296×302×418mm (3P fixed version) | ||
| • Weight: Approx.45kg (3P) | ||
| • Ingress Protection: IP30 for bare breaker, IP40 with enclosure | ||
| Ambient Conditions | • Operating Temp: -5°C ~ +40°C (derating required above 40°C) | IEC 60068-1 |
| • Storage Temp: -25°C ~ +70°C | ||
| • Relative Humidity: 95% @25°C, non-condensing | ||
| • Pollution Degree: Class 3 | ||
| • Altitude: ≤2000m (derating required over 2000m elevation) | ||
| Eco & Sustainability | • Compliant with EU RoHS Directive | ABB Green Product Certification |
| • PFOS/PFOA free construction | ||
| • Recyclable material ratio ≥90% | ||
| • Low power consumption: Control circuit ≤15W |
- Full Part Number List (E1N Series, 1600A Frame Size)
| Part No. | Description | Rated Current | Protection Type |
| 1SDA055782R1 | E1N1600 R800 PR121/P-LI | 800A | LI (2-stage: Long Delay + Instantaneous) |
| 1SDA055783R1 | E1N1600 R1000 PR121/P-LI | 1000A | LI |
| 1SDA055784R1 | E1N1600 R1600 PR121/P-LI | 1600A | LI |
| 1SDA055785R1 | E1N1600 R800 PR121/P-LSI | 800A | LSI (3-stage: Long+Short+Instantaneous) |
| 1SDA055786R1 | E1N1600 R1600 PR121/P-LSI | 1600A | LSI |
| 1SDA055787R1 | E1N1600 R800 PR123/P-LSIG | 800A | LSIG (4-stage + Earth Fault protection) |
| 1SDA055788R1 | E1N1600 R1600 PR123/P-LSIG | 1600A | LSIG |
Full Series Coverage: Frame ratings 800A/1000A/1250A/1600A; Fixed(N)/Draw-out(B) mounting; LI/LSI/LSIG protection; 3P & 4P configurations available.
- Cross-Brand Equivalent & Replacement Options
4.1 In-brand ABB Replacement
| Original Model | Alternative Model | Specification Difference |
| E1N16-R1600-PR121-LSI | E1B16-R1600-PR121-LSI | Draw-out type for convenient maintenance, replaceable without power shutdown |
| E1N16-R1600-PR121-LSI | E1N16-R1600-PR123-LSIG | Upgraded to 4-stage LSIG with additional earth-fault(G) protection |
| E1N16-R1600-PR121-LSI | E2N16-R1600-PR121-LSI | E2 higher-grade series, breaking capacity raised to 65kA@415V AC |
4.2 Cross-Brand Comparison Chart
| ABB | Schneider Electric | Siemens | CHINT |
| E1N16-R1600-PR121-LSI | MT16H1600 3P 5.0 | 3WL1116-3BB36-4AA0 | NA1-1600-1600M/3P |
| Breaking Capacity:50kA@415V | Breaking Capacity:50kA@415V | Breaking Capacity:50kA@415V | Breaking Capacity:50kA@415V |
| LSI three-stage protection | LSI three-stage protection | LSI three-stage protection | LSI three-stage protection |
| PR121/P trip unit | Micrologic 5.0 trip unit | 3WL electronic trip unit | NA1 electronic trip unit |
- Application Scope & Practical Cases
5.1 Recommended Application Fields
| Industry Sector | Typical Usage | Selection Advantages |
| Industrial Power Distribution | Main incoming feeder of factory, transformer secondary protection, large MCC | 50kA high breaking capacity, precise LSI selective coordination for complicated industrial environment |
| Commercial Buildings | Main distribution panel for shopping mall, hotel & office tower | Space-saving fixed mounting, motorized operation for remote control & easy maintenance |
| Data Center | UPS output & main power distribution for server room | Low power loss design, high reliability, capable of ATS interlock for redundant power supply |
| Critical Infrastructure | Main protection for airport, metro, hospital vital loads | Wide working voltage to resist grid fluctuation, fast fault isolation to minimize blackout range |
| New Energy Industry | LV side of step-up transformer in PV plant, combiner cabinet for energy storage | Excellent harmonic withstand, customizable inverse-time protection curve matching new-energy characteristics |
5.2 Non-recommended Applications
DC circuits: Select dedicated Emax DC series (e.g.E1N-DC)
Installation above 2000m altitude without current derating
Frequently switching loads: Adopt contactor + thermal overload relay combination instead
Severe environment with Pollution Degree 4: Extra enclosure protection required
5.3 Typical Application Cases
Case1: Main Distribution for Automobile Manufacturing Plant
Application: Secondary-side main protection for 10kV/0.4kV factory transformer (1600A)
Configuration: E1N16-R1600-PR121-LSI 3P fixed type with PR121/P-LSI trip unit
Performance: Realizes long-delay overload, short-delay & instantaneous short-circuit protection; forms selective coordination with downstream MCCB to limit fault outage area and improve power supply reliability.
Case2: UPS Output Distribution in Large-scale Data Center
Application: Main protection for 2000kVA UPS outgoing terminal
Configuration: E1N16-R1600-PR121-LSI 4P fixed type plus communication module for remote monitoring
Advantage: Low power consumption reduces UPS loading; optimized protection curve avoids unintended UPS tripping under short-circuit; communication function enables early fault alert & remote diagnosis.
- Common Troubleshooting Guide
| Fault Phenomenon | Root Causes | Remedial Actions |
| Failed motor closing | 1.Abnormal control supply | 1.Measure input control voltage |
| 2.Uncompleted spring charging | 2.Await automatic charging or manual charge | |
| 3.Interlock not released | 3.Check rack position & cabinet door interlock | |
| 4.Faulty closing coil | 4.Test coil resistance and replace defective component | |
| Abnormal trip unit display | 1.Failed internal power module | 1.Check auxiliary supply for trip unit |
| 2.Broken CT wiring | 2.Tighten or repair open-circuited CT connections | |
| 3.Trip unit program error | 3.Power cycle trip unit; contact ABB service if fault persists | |
| Unintentional frequent tripping | 1.Overload or downstream short-circuit | 1.Measure load current and clear short fault |
| 2.Incorrect protection setting parameters | 2.Re-calibrate protection setting for selective coordination | |
| 3.Excessively high ambient temperature | 3.Improve cabinet ventilation & ambient cooling | |
| 4.Trip unit malfunction | 4.Verify trip performance or replace trip unit | |
| Stiff manual operation | 1.Mechanism jamming by foreign matter | 1.Clean internal mechanism and reassemble |
| 2.Fatigued operation springs | 2.Inspect charging/closing spring condition | |
| 3.Insufficient lubrication | 3.Apply specified lubricant per service manual |
- Air Shipment Compliance & Certifications
7.1 Air Transport Regulation Compliance
Product Property: No built-in lithium battery/supercapacitor, classified as general electrical equipment
Shipping Classification: Non-dangerous goods compliant with IATA DGR regulations
Packaging: Standard wooden case with inner cushion padding against mechanical damage
Transport Note: Precision device; avoid severe shock & vibration during transit
7.2 Main Certifications List
| Certification | Certificate No. | Valid Market |
| CCC | 2.02101E+15 | Mainland China |
| CE | 0123/CE | EU & EEA |
| UL | E250000 | North America |
| CSA | 250000 | Canada |
| RoHS | Comply with Directive 2011/65/EU | Global environmental restriction of hazardous substances |
- Quick Selection Rules & Summary Tips
Quick Selection Rules
- Frame Current Identification: Digit “16” =1600A frame; 8=800A,10=1000A,12=1250A
- Rated Current Lookup: Rxxx = nominal In; R800=800A, R1000=1000A, R1250=1250A, R1600=1600A
- Protection Code Definition: LI=2-stage, LSI=3-stage, LSIG=4-stage with earth fault
- Mounting Code: N=Fixed type, B=Draw-out type
- Breaking Capacity Grade: E1=50kA@415V; E2=65kA@415V
