Technical Data: Series: Emax 2 (E2) Frame Size: S (corresponding to a specific physical frame designed for high currents, typically up to 3200A). Rated Current (In): 2000 A (This is the nominal current rating of the breaker frame and main contacts. The actual protection settings are configured in the trip unit). Rated Ultimate Breaking Capacity (Icu): 200 kA at 400/415V AC (The "R2000" code denotes this very high short-circuit interrupting rating). Number of Poles: 3 Poles (3P - phases L1, L2, L3). Trip Unit: PR123/LSIG - Advanced Electronic Trip Relay. Protection Functions (All Digitally Adjustable): L - Overload (Thermal Protection): Adjustable current setting (Ir) and time delay (tr). S - Short-Time (Selective Short-Circuit): Adjustable current threshold (Isd) and definite or I²t time delay (tsd) for coordination with downstream breakers. I - Instantaneous (Short-Circuit): Fixed or adjustable high-current trip threshold (Ii) for worst-case faults. G - Ground Fault: Adjustable current threshold (Ig) and time delay (tg) for protection against earth leakage currents. Communication Protocol: The PR123 unit natively supports communication protocols (typically Modbus or Profibus via plug-in modules) for remote monitoring, control, and data logging (current, voltage, power, energy, alarms). Mounting & Operation: Draw-Out Version (FHR - Fixed Horizontal Draw-Out). Equipped with a stored-energy spring operating mechanism. This allows for quick closing ("Charge-Close" operation) and provides the force for tripping under fault conditions. Includes a motor charging mechanism for automatic spring re-charging. Auxiliary Contacts: Typically includes a standard set of auxiliary contacts for signaling breaker status (ON/OFF/TRIPPED), spring charged, etc. Standards Compliance: IEC/EN 60947-2, UL 1066, CSA C22.2 No. 5.

Technical Data: Series: Emax 3 (E3) - Latest generation Variant: N (New Design) - Optimized for sustainability (smaller size, lower losses). Frame Size: E3N frame for high-current ratings. Rated Current (In): 2500 A (Continuous current rating of the breaker's main contacts and conductors). Rated Ultimate Breaking Capacity (Icu): Typically 150 kA at 400/415V AC (Note: The exact Icu for the 2500A E3N frame must be verified from the catalog as it can vary, but it is an extremely high value, e.g., 150kA or 200kA). Number of Poles: 3 Poles (3P). Trip Unit: PR121/LSI - Advanced Digital Trip Unit. Core Protection Functions (Fully Adjustable): L - Overload Protection: Adjustable Ir (0.4 to 1.0 x In) and time delay tr. S - Short-Time Protection: Adjustable Isd (1.5 to 15 x Ir) with selectable time delay curve (I²t ON/OFF) for precise coordination with downstream devices. I - Instantaneous Protection: Adjustable Ii threshold for clearing high-magnitude, non-selective short-circuits. Measurement & Monitoring: The PR121 unit provides real-time measurement of current, voltage, power, and energy. Communication Ready: The PR121 unit is standardly equipped with an embedded Ethernet port (supporting Modbus TCP) for direct, easy integration into Building Management Systems (BMS) or Industrial SCADA without additional gateways. Mounting & Operation: Fixed Horizontal Draw-Out (FHR). Features a stored-energy spring operating mechanism for reliable "Close-Open" (CO) or "Open-Close-Open" (O-CO) duty cycles. Includes an electric spring charging motor and can be equipped with optional closing solenoid and shunt trip. The draw-out mechanism allows for safe racking between CONNECTED, TEST, and DISCONNECTED positions. Auxiliaries: Comes with a standard set of auxiliary contacts for status signaling. Options include additional contacts, undervoltage release, and mechanical key interlocks. Standards Compliance: IEC/EN 60947-2, UL 1066, CSA C22.2 No. 5.

Technical Data: Series: Emax 4 (E4) - Top-tier series for ultra-high current applications. Frame Size: S - Largest physical frame in the Emax 4 range. Rated Current (In): 4000 A (The maximum continuous current rating of the breaker's main bus system and contacts). Rated Ultimate Breaking Capacity (Icu): 150 kA at 400/415V AC *(Note: This is a typical high value for the E4S frame; the definitive Icu/Ics must be verified from the Emax 4 catalog, as it can be 150kA or 200kA depending on the specific certified configuration)*. Number of Poles: 3 Poles (3P - phases L1, L2, L3). Trip Unit: Standard Fixed Protection (Implicit in code). The "P" in the code indicates it is equipped with a "PR332" series basic fixed protection trip unit. This is a non-adjustable, non-communicating electronic unit. Protection: It provides fundamental fixed Long-time (L) and Short-time (S) protection with factory-set thresholds based on the 4000A frame rating. It typically does not include an Instantaneous (I) or Ground-fault (G) function as standard, which is suitable for coordination in high-power selective systems. Mounting & Operation: Fixed Horizontal Draw-Out (WMP). "WMP" is a specific draw-out mechanism code, indicating a robust rack-in/rack-out cradle design. The breaker is fixed to the cradle, and the entire cradle assembly can be moved horizontally into the CONNECTED, TEST, or DISCONNECTED positions. Features a motor-operated stored-energy spring mechanism for reliable high-speed closing and tripping. Equipped with a spring charging motor and a closing solenoid as standard for electrical remote operation. Rated Operational Voltage (Ue): Up to 690 V AC, 50/60 Hz. Control Voltage: Standard auxiliary supply voltage is typically 110-240V AC/DC (specifics defined at order). Standards Compliance: IEC/EN 60947-2, UL 1066, CSA C22.2 No. 5, and other international standards.

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax / E3N Product Type Air Circuit Breaker (ACB) Configuration / Version 3‑pole, withdrawable version (W MP) Rated Uninterrupted Current (In / Iu) 2500 A Number of Poles 3 Rated Operational Voltage Up to 690 V AC Rated Insulation Voltage (Ui) ~1000 V AC Rated Service Short‑Circuit Breaking Capacity (Ics) ~65 kA at 690 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu) ~65 kA at 690 V AC Rated Short‑Time Withstand Current (Icw) ~65 kA (1 s / 3 s) Trip Unit Type PR121/P‑LI electronic overcurrent protection Protection Functions Overcurrent / short‑circuit protection via PR121/P‑LI unit Auxiliary Contacts Typically includes auxiliary contacts for breaker position and signaling Terminal Connection Type Withdrawable connection interfaces for switchgear cubicles Mounting Style Switchgear withdrawable frame Standards Compliance IEC / international low‑voltage breaker standards Typical Applications Industrial power distribution, switchgear feeders, main and critical bus protection

Technical Parameters Parameter Specification Manufacturer ABB Product Series SACE Emax / E3H Product Type Air Circuit Breaker (ACB) Configuration Withdrawable version (W MP) Number of Poles 3‑pole (three‑phase) Rated Current (In / Iu) 800 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Trip Unit PR121/P‑LI electronic overcurrent protection Protection Functions Overload and short‑circuit trip via PR121/P‑LI Rated Service Short‑Circuit Breaking Capacity (Ics) ~85 kA at 690 V AC Rated Ultimate Short‑Circuit Breaking Capacity (Icu) ~100 kA at lower voltages, ~85 kA at 690 V AC Rated Short‑Time Withstand Current (Icw) ~75 kA (1 s) / ~65 kA (3 s) Terminal Style Withdrawable breaker connections for switchgear Standards Compliance IEC low‑voltage circuit breaker standards Typical Application Main distribution protection, feeder breaker, industrial power panels

Technical Parameters Parameter Specification Manufacturer ABB Product Series SACE Emax E4S Product Type Air Circuit Breaker (ACB), Withdrawable Version (WMP) Configuration 3‑pole (three‑phase) Rated Continuous Current (Iu / In) 4000 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Trip Unit Electronic PR121 with LSIG protection Protection Functions Long‑time (L), Short‑time (S), Instantaneous (I), Ground fault (G) Short‑Circuit Performance Level High performance level suitable for industrial networks Rated Service Short‑Circuit Breaking Capacity (Ics) ~75 kA across common low‑voltage levels Rated Ultimate Short‑Circuit Breaking Capacity (Icu) ~75 kA across common low‑voltage levels Rated Short‑Time Withstand (Icw) ~75 kA for 1 s and 3 s Terminal / Connection Type Withdrawable breaker connections for switchgear Mechanical Durability High durability for frequent operations Typical Applications Main distribution protection, switchgear feeder protection in industrial and commercial installations

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax E4S Product Type Air Circuit Breaker (ACB), Withdrawable Model Code E4S4000 PR121/P‑LSIG Configuration 4‑pole (3-phase + neutral) Rated Continuous Current (In / Iu) 4000 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Trip Unit PR121/P‑LSIG Electronic Overcurrent Protection Protection Functions Long-time (L), Short-time (S), Instantaneous (I), Ground fault (G) Short-Circuit Breaking Capacity (Icu) ~75 kA Service Short-Circuit Breaking Capacity (Ics) ~75 kA Short-Time Withstand Current (Icw) ~75 kA (1 s / 3 s) Rated Frequency 50 / 60 Hz Terminal / Connection Type Withdrawable mounting (WHR) for switchgear Standards Compliance IEC low-voltage circuit breaker standards Typical Applications Main distribution, feeder protection, industrial switchgear

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax E2N Product Type Air Circuit Breaker (ACB), Withdrawable (WHR) Configuration 3‑pole (three-phase) Rated Continuous Current (In / Iu) 1600 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Trip Unit PR122/P-LSI electronic overcurrent protection Protection Functions Long-time (L), Short-time (S), Instantaneous (I), Ground fault (G) Short-Circuit Breaking Capacity (Icu) ~65 kA Service Short-Circuit Breaking Capacity (Ics) ~65 kA Short-Time Withstand Current (Icw) ~55 kA (1 s) / ~42 kA (3 s) Rated Frequency 50 / 60 Hz Mechanical Durability Designed for frequent operations (tens of thousands of cycles) Connection Type Withdrawable mounting (WHR) Typical Applications Main distribution protection, feeder breaker in industrial switchgear

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax E1N Product Type Air Circuit Breaker (ACB), Fixed Horizontal Rear (FHR) Configuration 3‑pole (three‑phase) Rated Continuous Current (In / Iu) 800 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 8–12 kV (typical) Trip Unit PR121 with P‑LSIG electronic overcurrent protection Protection Functions Long‑time (L), Short‑time (S), Instantaneous (I), Ground fault (G) Short‑Circuit Breaking Capacity (Icu) Designed for high short‑circuit current levels suitable for industrial networks Service Short‑Circuit Breaking Capacity (Ics) Suitable for distribution system requirements Short‑Time Withstand Current (Icw) Designed for rated withstand levels for 1 s and 3 s Rated Frequency 50 / 60 Hz Connection Type Fixed horizontal rear (FHR) terminals Mechanical Durability High endurance for frequent operations Typical Applications Main distribution protection, feeder breaker in electrical panels and switchgear

Technical Parameters Parameter Specification Manufacturer ABB Series / Family SACE Emax E4N Product Type Air Circuit Breaker (ACB), Withdrawable (WHR) Configuration 3‑pole (three‑phase) Rated Continuous Current (In / Iu) ~3200 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) ~1000 V AC Rated Impulse Withstand Voltage (Uimp) ~12 kV Trip Unit Type Electronic LSIG overcurrent protection (Long‑time, Short‑time, Instantaneous, Ground) Protection Functions L (overload), S (short‑time), I (instantaneous), G (ground fault) Short‑Circuit Breaking Capacity (Icu) High‑capacity suitable for industrial networks Service Short‑Circuit Breaking Capacity (Ics) High level for distribution/system use Short‑Time Withstand Current (Icw) High withstand for 1 s / 3 s duty Rated Frequency 50 / 60 Hz Connection / Mounting Withdrawable (WHR) switchgear mounting Standards Compliance IEC low‑voltage circuit breaker standards Typical Applications Main distribution breaker, feeder protection in switchgear

Technical Parameters Parameter Specification Manufacturer ABB Series / Family Emax E2N Product Type Air Circuit Breaker (ACB), Withdrawable Horizontal Rear (WHR) Configuration 3‑pole (three‑phase) Rated Continuous Current (In / Iu) 800 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) ~8–12 kV Trip Unit Type Electronic D‑LSI overcurrent protection Protection Functions Long‑time (L), Short‑time (S), Instantaneous (I), Ground fault (G) Short‑Circuit Breaking Capacity (Icu) High interrupting capability suitable for industrial networks Service Short‑Circuit Breaking Capacity (Ics) Designed for service performance per low‑voltage distribution requirements Short‑Time Withstand Current (Icw) Withstand levels for 1 s and 3 s duty Rated Frequency 50 / 60 Hz Connection Type Withdrawable with horizontal rear terminations (WHR) Standards Compliance Meets international low‑voltage circuit breaker standards Typical Applications Main distribution breaker, feeder protection in industrial/commercial switchgear

Technical Parameters Parameter Specification Manufacturer ABB Series / Family Emax E1N Product Type Air Circuit Breaker (ACB) with withdrawable design Number of Poles 3 (three‑phase) Rated Continuous Current (In / Iu) 800 A Rated Operational Voltage (Ue) Up to 690 V AC Rated Insulation Voltage (Ui) ~1000 V AC Rated Impulse Withstand Voltage (Uimp) ~8–12 kV Trip Unit Electronic D‑LSI overcurrent protection (Long‑time, Short‑time, Instantaneous, Ground) Protection Functions L (overload), S (short‑time), I (instantaneous), G (ground fault) Short‑Circuit Breaking Capacity (Icu) Designed for industrial short‑circuit levels Service Short‑Circuit Breaking Capacity (Ics) Suitable for typical distribution requirements Short‑Time Withstand Current (Icw) Rated withstand levels for 1 s / 3 s duty Rated Frequency 50 / 60 Hz Mounting / Connection Withdrawable horizontal rear (WHR) installation Typical Applications Main distribution protection, feeder breaker in industrial/commercial switchgear