General Data Product Series: Emax 2 Frame Size: E1.2 (designed for currents up to 1600A) Rated Current (Iu): 1600 A Number of Poles: 3-Pole (3P) Mounting Type: Fixed (F1 = Fixed version 1) Type of Release: Electronic Trip Unit (Standard) 2. Electrical Characteristics Rated Operational Voltage (Ue): AC 50/60 Hz: Up to 690 V AC Rated Insulation Voltage (Ui): 1000 V Rated Impulse Withstand Voltage (Uimp): 12 kV Rated Ultimate Short-Circuit Breaking Capacity (Icu): At 415V AC: 50 kA (typical) At 690V AC: 25 kA (typical) （具体值取决于具体型号后缀和配置，请以实际铭牌和目录为准） Rated Service Short-Circuit Breaking Capacity (Ics): Usually a high percentage of Icu (e.g., 100% at certain voltages). Electrical Durability: Up to 10,000 mechanical operations. 3. Trip Unit & Protection Functions Standard Trip Unit: PR122/P or PR123/P Protection Functions (Adjustable via dials or software): L - Long-Time Overload Protection: Adjustable current (Ir) and time delay (tr). S - Short-Time Short-Circuit Protection: Adjustable threshold (Isd) and time delay (tsd) for selectivity. I - Instantaneous Short-Circuit Protection: Fixed or adjustable threshold (Ii). G - Ground Fault Protection: Adjustable threshold (Ig) and time delay (tg) (requires external CT for PR122). Measurement: Continuous monitoring of currents (I), voltages (V), power (kW, kvar, kVA), energy (kWh), frequency (Hz), power factor (cos φ), etc. 4. Communication & Accessories Communication Ready: The trip unit has a built-in communication port. Protocols: Supports major fieldbus systems via plug-in communication modules (e.g., Modbus RTU, Profibus DP, DeviceNet, Ethernet/IP). Standard Accessories: Shutter: For terminal protection. Auxiliary Contacts (OF/SD): Signaling contacts (e.g., 2 NO + 2 NC). Undervoltage Release (UVR): Optional. Shunt Trip (ST): Optional for remote opening. Spring Charging Motor: For remote or automatic spring charging. Mechanical Padlocking: For safety lockout (LOCK-OFF-LOCK). 5. Mechanical & Environmental Mounting: Fixed installation on a panel or enclosure backplate. Terminals: Front or rear horizontal/vertical cable connections, suitable for busbars or large cables. Degree of Protection: IP20 for the breaker itself (requires enclosure for full protection). Ambient Temperature: -25°C to +70°C for operation (derating may apply above 40°C). Standards Compliance: IEC/EN 60947-2, CE Marked.

Technical Parameters Parameter Specification Rated Uninterrupted Current (Iu) 3200 A Number of Poles 4 (Three phases + Neutral) Rated Operational Current (Ie) 3200 A Rated Operational Voltage (Ue) Up to 690 V AC (three‑phase) Rated Insulation Voltage (Ui) 1000 V AC (typical for Emax series) Rated Impulse Withstand Voltage (Uimp) 12 kV (typical) Rated Ultimate Short‑Circuit Breaking Capacity (Icu) 75 kA across common voltages up to 690 V AC Rated Service Short‑Circuit Breaking Capacity (Ics) 75 kA (100 % of Icu) Short‑time Withstand Current (Icw) 75 kA for 1 s / ~65 kA for 3 s Trip Unit Type PR122/P‑LSIG (electronic, adjustable) Protection Functions Overload, Short‑circuit, Ground Fault (LSIG) Frame Design Fixed MCCB with rear horizontal terminals Trip Settings Range – Overload (L): 0.4–1×In – Short‑time (S): ~0.6–10×In – Instantaneous (I): ~1.5–15×In – Ground fault (G): ~0.2–1×In Standards Compliance IEC series (e.g., IEC 60947‑2) Typical Duty Power distribution, feeder protection

Technical Parameters Parameter Specification Rated Operational Current (Iu / Ie) 4000 A (continuous) Number of Poles 3‑Pole or 4‑Pole (depending on model) Rated Operational Voltage (Ue) Up to 690 V AC (three‑phase) Rated Insulation Voltage (Ui) 1000 V AC Rated Impulse Withstand Voltage (Uimp) 12 kV Rated Ultimate Short‑Circuit Breaking Capacity (Icu) 75 kA at 400‑690 V AC Service Short‑Circuit Breaking Capacity (Ics) 75 kA (100 % of Icu) Trip Unit Options Electronic trip units (e.g., PR121/P‑LSIG, PR122/P‑LSIG) or without trip unit Terminal Types Rear horizontal or front terminals (configurable) Standards Compliance IEC 60947‑2 (Low Voltage Circuit Breakers) Typical Frequency 50/60 Hz Weight (approx.) ~85–95 kg (varies by configuration)

Technical Parameters Parameter Specification Part / Model ABB 1SDA038301R1 Function Shunt Closing Release (YC coil) – electrically closes the circuit breaker Compatible Product Family ABB SACE ACB/MCCB (e.g., Emax / Tmax depending on version) Supply Voltage (Rated) 120/127 V AC/DC (IEC) Supply Voltage (UL) 125/127 V AC/DC Type of Current AC or DC operation possible Mounting / Use Mounted on compatible ABB breakers as remote close actuator Operating Frequency 50/60 Hz Coil Designation “YC” indicates closing coil function for remote closing Standards Compliance IEC / UL compatible ratings for auxiliary devices Weight ~1.66 lb (≈0.75 kg) typical

Technical Parameters Product Type: Shunt Opening Release / Shunt Trip Function: Remote electrical opening (tripping) of the circuit breaker Rated Control Voltage: 120–127 V AC/DC Operating Principle: Electromagnetic coil-operated trip mechanism Mounting: Internal accessory for ABB air circuit breakers Compatibility: ABB Emax series circuit breakers (e.g. E1/E6/T8 frames, depending on configuration) Operation Mode: Instantaneous trip when control voltage is applied Application: Emergency stop systems, fire alarm interfaces, automation and control systems Standards Compliance: IEC standards for low-voltage switchgear accessories Order Code: 1SDA038291R1

Technical Parameters Parameter Specification Product Name External Neutral Current Sensor Manufacturer ABB Part Number / Order Code 1SDA058191R1 Accessory Type Neutral Current Sensor (for external neutral conductor) Applicable Series ABB SACE Emax Air Circuit Breaker Accessories Neutral Conductor Range N50–100% (typical percentage range of neutral conductor dimension) Supported Breaker Frames E1, E2, E4 (and similar modular frames) Neutral Current Rating Up to 2000 A Application Neutral current measurement accessory for protection/trip/monitoring Mounting / Usage Installed with Emax breaker and protection unit to sense neutral current Compliance / Standards Meets ABB accessory integration specifications for SACE Emax series Country of Origin Typically manufactured in Italy Weight (approx.) ~5 kg (varies by packaging)

Technical Parameters Parameter Specification Product Name External Neutral Current Transformer Sensor Manufacturer ABB Part/Order Code 1SDA058218R1 Accessory Type Neutral Current Sensor (Current Transformer) Application External Neutral Current Measurement for Circuit Breaker Protection Compatible Breaker Frames E3 and E6 series (ABB SACE Emax) Primary Current Rating Up to 3200 A Neutral Conductor Range N50-100% for E3, N50% for E6 (percentage of nominal neutral conductor) Primary Type Current Transformer (Neutral sensing) Mounting/Use Installed with Emax breaker and protection unit for neutral current detection Function Measures neutral current and provides signal for protective and monitoring devices Standards Compliance Conforms to IEC and ABB accessory specifications Weight (Approx.) ~1 kg Typical Use Cases Neutral imbalance detection, ground fault protection schemes, system monitoring

Technical Parameters Parameter Specification Product Name ABB SACE Emax PR121/P Protection / Trip Unit Type Electronic Protection Release / Trip Unit Compatible Series ABB SACE Emax Low-Voltage Air Circuit Breakers Installation Mounted on circuit breaker (3-pole or 4-pole) Protection Functions Overload (L), Short-circuit (S), Instantaneous (I), Earth fault (G) — depending on version/configuration User Interface DIP switches, LEDs for alarms/trips Self-Supply Yes — unit is self-powered by breaker current for protection function External Power (Optional) Auxiliary supply for extended functions and external devices Communication Interfaces Optional connection to external displays or PCs via communication modules Adjustable Settings Current thresholds, trip delays, neutral settings (when applicable) Standards Compliance IEC 60947-2 (Low-voltage circuit breakers standard) Operating Frequency 50/60 Hz Weight Approximately 0.3–0.5 kg (varies by exact version) Indicators Multi-function LEDs for protection status and alarms Testing & Diagnostics Built-in test function; support for external test tools Configuration Tools (Optional) External programming / communication modules

Technical Parameters Parameter Specification Product Name ABB Tmax T5N 400 MCCB with Electronic Trip Unit Part / Order Code 1SDA058151R1 Series ABB Tmax T5N Type Moulded Case Circuit Breaker (MCCB) Number of Poles 3-pole Rated Current (I_n) 400 A Rated Operational Voltage 600 V AC Rated Insulation Voltage (U_i) 1000 V Rated Impulse Withstand Voltage (U_imp) 8 kV Trip / Release Type PR221DS-LS/I (Electronic solid-state trip unit) Terminal Connection Fixed front terminals Interrupting Capacity (UL489) 65 kA @ 240 V AC; 25 kA @ 480 V AC; 18 kA @ 600 V AC Mechanical Durability ~20,000 cycles Protection Functions Overload and short-circuit protection (via electronic release) Mounting Style Fixed MCCB Standards / Certifications UL and CSA listed Degree of Protection IP20 Release Adjustment Ranges Short-circuit and delayed settings (as configured on PR221DS-LS/I) Motor Drive Option Optional motor operator available

Technical Parameters Parameter Specification Product Name ABB YU-1SDA038312R1 Undervoltage Release Coil Part / Order Code YU-1SDA038312R1 / 1SDA038312R1 Product Type Undervoltage Release (UVR) Accessory Application Remote undervoltage protection for low-voltage circuit breakers Compatible Breaker Series ABB SACE Emax / E1–E6 frames and similar Rated Control Voltage 220–240 V (AC/DC) Frequency Range 50 Hz / 60 Hz Operating Function Trips circuit breaker when supply voltage drops below preset undervoltage threshold Mounting / Integration Installed as an accessory on auxiliary trip terminals of breakers Environmental Conditions Designed for industrial use (panel/enclosure mounting) Typical Operating Temperature Standard industrial range (panel environment) Weight Approx. 0.7–2.3 kg depending on packaging/configuration Standards / Compliance Conforms to ABB accessory product specifications and safety requirements

Technical Parameters Parameter Specification Product Name ABB SACE PR111/P Product Type Electronic Protection Trip Unit Application Protection of low-voltage power distribution circuits Compatible Breakers ABB SACE Emax air circuit breakers Power Supply Self-powered from breaker current transformers Rated Frequency 50 / 60 Hz Installation Mounted on the front of the circuit breaker Poles Supported 3-pole and 4-pole Neutral Handling Suitable for breakers with or without neutral Protection Functions Overload (L), Short-circuit (S), Instantaneous short-circuit (I), optional Ground-fault (G), depending on version Protection Versions PR111/P-LI, PR111/P-LSI, PR111/P-LSIG Adjustable Parameters Current thresholds and time delays (version dependent) User Interface LED indicators for alarm and trip status Degree of Protection IP30 when installed in the circuit breaker Operating Temperature −25 °C to +70 °C Storage Temperature −40 °C to +90 °C Standards IEC 60947-2

Technical Parameters Parameter Specification Product Name ABB PR122/P‑LI Electronic Protection Trip Unit Model / Version PR122/P‑LI E1/6 Application Protection & trip unit for low‑voltage air circuit breakers Compatible Series ABB SACE Emax (E1 to E6 frames) Protection Functions • Overload (Inverse/Long‑time) • Short‑circuit with adjustable delay • Instantaneous short‑circuit trip Operational Principle Microprocessor‑based electronic protection Self‑Supply Powered by breaker current transformers Installation Front‑mounted on compatible Emax breakers (3 or 4 poles) Adjustable Settings Current thresholds and time delays for L, S, I functions Neutral Handling Neutral protection configurable (e.g., 50%, 100%, 150%, 200% settings) for compatible breaker configurations User Interface LED or display status indication; parameter configuration via front controls Rated Frequency 50 / 60 Hz Operating Temperature Range Typical industrial range Degree of Protection Standard protection when installed in circuit breaker housing Standards Compliance Designed according to IEC low‑voltage switchgear protection requirements Typical Uses Main and feeder protection in low‑voltage distribution systems Optional Modules Communication, measurement, signaling modules (optional addons)