Technical Parameters Parameter Category Specification Base Device GSH204 - 400A frame high-performance contactor. The 204 denotes the 400A frame size within the GSH series. Handle & Accessory Code -C25A - This suffix defines the operating mechanism and included internal accessories. A typical decoding is: • C: Front-mounted rotary handle for manual operation. • 25: Likely a specific handle type or accessory package code. • A: Often indicates the inclusion of standard accessories. For GSH series, A commonly means the contactor is supplied with: - Auxiliary Contacts (typically 2 NO + 2 NC). - Mechanical Interlock provision or specific mounting配件. Rated Operational Current (Ie) 400 A (at AC-3, 400V). This is the key rating of the GSH204 frame. Rated Operational Voltage (Ue) Up to 690 V AC Control Coil IMPORTANT: The model GSH204 -C25A does not specify the coil voltage or type. This is a critical missing specification. The contactor requires a separate coil, ordered with a code like GSH204 A230 for a 230V AC coil, which is then combined with the -C25A handle/accessory code. Utilization Categories AC-3 (For squirrel-cage motors: Starting, switching off during running) AC-4 (For squirrel-cage motors: Starting, plugging, inching - at a significantly reduced current rating) AC-1 (Non-inductive loads) Switching Capacity • Rated Making Capacity (Icm): Very high, typically several thousand Amperes (e.g., 4000A peak) to handle motor inrush. • Short-circuit Withstand: Requires backup fuse/circuit breaker for short-circuit protection. Mechanical Life ≥ 10 million operations Electrical Life (AC-3) ≥ 1.0 million operations at full rated current (400A) Auxiliary Contacts (if A includes them) Typically 2 changeover (NO+NC) contacts, rated for control circuits (e.g., 10A, 600V AC). Terminals Large screw-clamp terminals or busbar connections for high-current cables. Mounting Robust foot mounting for panel installation. May require a sturdy backplate. Dimensions & Weight Substantial. Approx. width > 200mm, weight > 10kg.

Technical Parameters Parameter Category Specification Base Device GSH202 AC - 200A frame high-performance contactor with AC operating coil. Note: The specific coil voltage (e.g., 230V AC) is part of the ordering code but not shown in this segment. Main Circuit Ratings • Rated Operational Current (Ie) 200 A (at AC-3, 400V) • Rated Operational Voltage (Ue) Up to 690 V AC Handle / Actuator -C16 - Front-mounted rotary handle for local manual operation, testing, and padlocking in the OFF position. Critical Special Feature /0.03 - Integrated 0.03A (30mA) fuse for the control coil circuit. Control Coil Fuse (/0.03) • Purpose To protect the external control power source (e.g., PLC digital output, safety relay, control transformer) from damage in the event of a short circuit in the contactor's coil (A1-A2) or its connecting wires. • Location Housed within a dedicated compartment on the contactor or its associated terminal cover. • Rating 30 mA, gG or similar characteristic. • Replacement Typically a standard 5x20mm or similar miniature fuse. Utilization Categories AC-3, AC-4, AC-1 Switching Capacity Icm: ~2000A; Icu: 15-20 kA (with appropriate backup protection) Mechanical Life ≥ 10 million operations Electrical Life (AC-3) 1-2 million operations at full load Auxiliary Contacts Modular blocks can be added (e.g., 2NO+2NC). Mounting Foot mounting or DIN rail adapter.

Parameter Category Specification / Inference Product Type Switched-Mode DC/DC Converter (Power Supply Module) Product Family ABB CP-S (Control Power) or similar range. 2TAZ is a common prefix for this family. Standard IEC 62368-1, IEC 61204-7 Input Voltage (Uin) Wide-range DC input. The code segment 220301 defines the exact range. A highly probable and common input is 110-150 V DC (compatible with standard 110V DC control systems). Other possibilities include 24V, 48V, or 220V DC. This must be verified from the datasheet. Output Voltage (Uout) Regulated 24 V DC. This is strongly indicated by the R24 portion of the code R2504. The R stands for "Regulated". (Note: R25 is unusual; it might be a specific series code, but the output is highly likely 24V DC for industrial control). Output Current (Iout) / Power (Pout) The 04 in R2504 typically indicates the output current rating. Likely 4 A at the rated output voltage. • If output is 24V DC: Power = 24V * 4A = 96W. • If output is another voltage: Power scales accordingly. Output Power (Typical) Approximately 100W (e.g., 24V/4A or 48V/2A). Output Characteristics • Voltage regulated. • Short-circuit and overload protected. • Electrical isolation between input and output (typically 3-4 kV). • Low output ripple. Efficiency Typically >85%. Mounting 35 mm DIN Rail mounting. Terminations Screw-clamp terminals for secure connection. Operating Temperature -25°C to +70°C (industrial grade). Storage Temperature -40°C to +85°C. Protection Degree IP20 (for installation inside an enclosure). Cooling Convection cooled (no fan). Status Indication LED for power/operation status. Safety Approvals CE, UL, cUL, etc. Typical Application Installed in: • Low-voltage switchgear (MNS, ArTu). • Motor control centers (MCCs). • Automation panels. Function: To supply power to 24V DC devices (PLCs, I/O cards, relays, indicators) from a 110V DC or other primary DC bus.

Technical Specifications Parameter Category Specification Product Series System Pro M compact - GSE Series Device Type Miniature Circuit Breaker (MCB), 3-Pole Standard Compliance IEC/EN 60898-1 (Primary standard for household and similar installations). May also comply with parts of IEC/EN 60947-2 for industrial applications. Number of Poles 3 Poles (3P). All three poles are identically protected. Rated Current (In) This is NOT defined by the "203" code alone. The 203 indicates a 3-pole frame. The rated current must be specified separately as a suffix. Common ratings for this frame: 1A, 2A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A. A complete model would be, for example: GSE203 C32 AC (3-Pole, C-curve, 32A). Tripping Characteristic Not specified in "GSE203 AC". Must be selected from: • B Characteristic: (3 to 5 x In) • C Characteristic: (5 to 10 x In) - Most common for general three-phase loads. • D Characteristic: (10 to 20 x In) - For loads with very high inrush currents. Circuit Type AC ONLY (as indicated by the AC suffix). Not suitable for DC circuits. Rated Operational Voltage (Ue) 400/690 V AC (Phase-to-Phase) Rated Insulation Voltage (Ui) 500 V AC Rated Impulse Withstand Voltage (Uimp) 6 kV (For overvoltage category III) Breaking Capacity (Icn) Depends on the specific version. Common ratings for the GSE203 base model: • Standard: 6 kA or 10 kA at 400V AC • High Performance (H version): 15 kA Energy Limiting Class 3 (High) Electrical Life ≥ 20,000 cycles at rated current Mechanical Life ≥ 20,000 cycles Handle Type Standard toggle (rocker) handle with clear ON/OFF indication. Terminals • Screw-clamp terminals suitable for rigid and flexible conductors. • Connection Capacity: Up to 35 mm² (depending on wire type). Mounting Standard 35 mm DIN Rail (EN 60715) Width 54 mm (3 module width = 3 x 18mm) Dimensions (W x H x D) 54 mm x 89 mm x 69 mm Ambient Temperature -25°C to +55°C (Reference calibration at 30°C) Protection Degree IP20 (When mounted in an enclosure) Certifications CE, CCC, and other international approvals.

Technical Specifications Parameter Category Specification Product Series System Pro M compact - GSE Series Device Type Miniature Circuit Breaker (MCB), 1P+N Type Standard Compliance IEC/EN 60898-1 (and possibly IEC/EN 60947-2 for industrial use) Number of Poles & Protected Poles 1 Pole + Neutral (1P+N). Both poles are switched, but only the phase pole contains the full thermal-magnetic tripping mechanism for overload and short-circuit protection. The neutral pole typically provides isolation and short-circuit breaking capability. Rated Current (In) 16 A Tripping Characteristic Not specified in the basic model. Must be selected from common options: • B Characteristic: (3 to 5 x In) For residential/sensitive applications. • C Characteristic: (5 to 10 x In) Most common for general purpose. • D Characteristic: (10 to 20 x In) For high inrush currents. Rated Operational Voltage (Ue) 230/400 V AC Rated Insulation Voltage (Ui) 500 V AC Rated Impulse Withstand Voltage (Uimp) 4 kV Breaking Capacity (Icn) Typically 6 kA at 230/400V AC for the base GSE201 model. Higher versions (e.g., GSE201H) offer 10 kA. Energy Limiting Class 3 Electrical Life ≥ 20,000 cycles at rated current Mechanical Life ≥ 20,000 cycles Handle Type (L) Side-operated rotary lever. Provides clear ON (I)/OFF (0) indication and comfortable manual operation. Terminals • Screw-clamp terminals suitable for both rigid and flexible conductors. • Connection Capacity: 1 x 25 mm² or 2 x 1.5 - 16 mm² (with ferrule). Mounting Standard 35 mm DIN Rail (EN 60715) Ambient Temperature -25°C to +55°C (Reference calibration at 30°C) Protection Degree IP20 (When mounted in an enclosure) Width 18 mm (1 module width) – A key advantage of the GSE series for 1P+N breakers. Dimensions (W x H x D) 18 mm x 89 mm x 69 mm Weight ~ 0.12 kg Certifications CE, CCC, and other international approvals.

Technical Parameters Parameter Category Specification Notes / Explanation Base Device GSH201 AC 100A frame high-performance contactor, AC coil. Coil voltage (e.g., 230V AC) is a separate specification. Main Circuit Ratings • Rated Operational Current (Ie) 100 A (at AC-3, 400V) • Rated Operational Voltage (Ue) Up to 690 V AC Handle / Actuator -C20 Front-mounted rotary handle for local manual operation, with ON/OFF indication and padlocking capability in the OFF position. Critical Special Specification /0.03 Integrated 0.03A (30mA) fuse for the control coil circuit (terminals A1-A2). This protects the control power source (e.g., PLC output, transformer) from damage in case of an internal coil short circuit. Control Coil Fuse (/0.03) Unique Safety Feature • Protected Circuit The contactor's AC control coil circuit. • Fuse Rating 0.03 A (30 mA) gG or similar. • Purpose To provide precise overcurrent protection for the sensitive control circuit. • Location Housed within a dedicated compartment on the contactor assembly. Typical Accessories Modular auxiliary contact blocks can be added. Mounting Foot mounting or DIN rail adapter.

Parameter Category Specification System / Standard KNX / EN 50090, ISO/IEC 14543 Bus Voltage 21 – 32 V DC (KNX SELV) Auxiliary Supply (Us) 24 V AC/DC, SELV (Typical for valve actuators and fan speed relays) Core HVAC Control Functions • Room Temperature Control: Compares measured room temperature (via integrated or external sensor) with setpoint. • Fan Speed Control: 3-speed (High/Med/Low) or 4-speed (including Auto) via relay outputs. • Valve Control: Modulating control of water valves via 0-10V analog outputs for precise flow regulation in 2-pipe or 4-pipe systems. • Operating Mode Selection: Auto, Comfort, Standby, Frost Protection, etc. Inputs & Sensors • Integrated Room Temperature Sensor (likely due to E suffix). • Binary Inputs (AB): For window contacts, presence detectors, local push-buttons. • Optional External Sensors: Can connect to external temperature sensors (e.g., floor sensor) via KNX or analog input. Outputs • Analog Outputs (AE): 2 channels of 0-10V DC for controlling heating valve and cooling valve actuators (in a 4-pipe system). • Relay Outputs (AG): Typically 3 or 4 relays for fan speed control (High, Medium, Low, possibly Off). Each relay rated for fan motor load (e.g., 5(2)A @ 230V AC). • Additional Auxiliary Relay: May include one for On/Off valve or summer/winter changeover. KNX Communication • Sends room temperature, operating mode, fan speed, valve position, alarms. • Receives setpoints, mode commands, schedules from higher-level systems. • Can be part of energy management scenes (e.g., night setback). User Interface Likely includes a basic local display (showing temperature/setpoint) and buttons for manual override (if E indicates this feature). Configuration Exclusively via ABB ETS (Engineering Tool Software). Extensive parameters for: PID control loops, valve characteristics, fan speed logic, interlock with window contacts, hysteresis, etc. Mounting 35 mm DIN Rail in a distribution board, typically located near the fan coil unit. Typical Wiring Connects to: KNX bus, 24V AC/DC power supply, fan motor terminals, valve actuator cables, window contact, and optionally an external temperature sensor.

Parameter Category Specification System / Standard KNX / EN 50090, ISO/IEC 14543 Bus Voltage 21 – 32 V DC (KNX SELV) Auxiliary Supply (Us) 230 V AC, 50/60 Hz Typical Channel Configuration Based on KAEADAB, it may combine: • 4 independent channels capable of being configured as: - Dimmable lighting output (0-10V control signal). - Switchable lighting output (via relay, e.g., 16A). - Shutter/Blind output (with Up/Down/Stop control and position feedback). Output Relays (if present) • Contact Type: Changeover (SPDT). • Rated Load (AC-1): Typically 16 A / 230 V AC. Analog Outputs (for Dimming) • Type: 0-10 V DC reference signal. • Load: For controlling electronic ballasts (EVG) or LED drivers. Binary Inputs • Quantity: Likely 4 or more. • Type: Dry contact or voltage pulse (from pushbuttons). • Function: Configurable as switch, push-button, scene call, etc. Shutter Control Features • Control: Up, Down, Stop, Step, Position control (%). • Feedback: Can monitor and report position via KNX. • Safety: Integrated anti-jamming protection (if supported). Logic & Scenes Built-in logic for: • Central ON/OFF commands. • Lighting scenes (multiple channels recalled simultaneously). • Time-based control (via external KNX time scheduler). Status Indication LED per channel, bus status LED. Mounting 35 mm DIN Rail (EN 60715) in a distribution board. Configuration Exclusively via ABB ETS (Engineering Tool Software) using the device's specific database file. Typical Use Controlling a mixed zone containing: • Dimmable ceiling lights (via 0-10V output). • On/Off wall lights or sockets (via relay). • Motorized blinds on the windows (via shutter output). All controlled by KNX wall switches (connected to binary inputs) or a building management system.

Technical Parameters Parameter Category Specification Product Series / Platform ABB Relion® 615 Series (Transformer Protection Platform) Device Type Numerical Transformer Protection and Control Relay (IED) Hardware Variant Suffix • -E: Wide-range auxiliary power supply (e.g., 48-250V DC / 48-240V AC). • -1G: Specific hardware package defining the number and type of I/O modules, communication ports, and possibly analog input configurations. 1G often indicates a standard or common configuration for transformer applications. Key Standards IEC 60255, IEC 61850 (Ed. 2), IEC 60870-5-103 Rated Auxiliary Supply (Us) 48 - 250 V DC / 48 - 240 V AC, 50/60 Hz (Auto-ranging, typical for -E). Analog Inputs (Typical) Designed for Dual-CT Sets: • HV Side: 3 phase currents (I1, I2, I3) + 1 neutral current. • LV Side: 3 phase currents (I4, I5, I6) + 1 neutral/ground current. • Configurable for 1 A or 5 A secondary. • Voltage Inputs: 3 phase voltages (for HV or LV side metering/protection) + 1 residual voltage. Core Protection Functions Transformer-Specific Suite: • Differential Protection (87T): High-impedance or percentage restrained, with harmonic restraint for inrush and overexcitation. • Restricted Earth Fault (REF) Protection (87N): For both HV and LV windings. • Overcurrent Protection (50/51, 50N/51N): Backup protection for HV and LV sides. • Thermal Overload Protection (49): For transformer winding and oil. • Over/Under Voltage (27/59) & Frequency (81). • Buchholz & Sudden Pressure Relay Interface. • Circuit Breaker Failure (50BF). Control & Automation • Integrated Bay Control: For HV and LV circuit breakers, isolators, and tap changers. • Programmable Logic (CFC): Extensive logic for interlocking, sequencing, and automation. • Voltage-based Auto-Reclosing (79) and Synchronization (25). Measurement & Metering High-accuracy (Class 0.5) measurement of currents, voltages, power (P, Q, S), power factor, frequency, energy, and harmonics on both sides of the transformer. Human-Machine Interface (HMI) • Large graphical LCD. • Intuitive keypad. • Status LEDs. • Front USB port. Data Recording • Event Recorder (≥ 2000 events). • Disturbance Recorder (Multiple analog and binary channels). Communication Interfaces As per -1G package, typically includes: • Multiple Ethernet ports for IEC 61850-8-1 (GOOSE/MMS) and station bus. • RS485 serial port(s) for legacy protocols (IEC 60870-5-103, Modbus RTU). (Exact ports depend on the -1G definition). Time Synchronization IRIG-B, SNTP, PTP (IEEE 1588) support. Operating Temperature -40°C to +70°C (Extended range, typical for -E version). Mounting Panel-mounted. Configuration Software ABB PCM600. Typical Applications Protection of two-winding power transformers in: • Utility transmission and distribution substations. • Industrial plants (steel, cement, mining). • Renewable energy plants (solar, wind farm step-up transformers). • Data centers and critical infrastructure.

Technical Parameters Parameter Category Specification Product Series / Platform ABB Relion® 615 Series (REF615 Platform) Device Type Numerical Feeder Protection and Control Relay (IED) Hardware Variant Suffix -D - Defines the auxiliary power supply range: 48-110 V DC. Key Standards IEC 60255, IEC 61850 (Ed. 2), IEC 60870-5-103 Rated Auxiliary Supply (Us) 48 - 110 V DC (This is the defining characteristic of the -D version). Analog Inputs • Current (CT) Inputs 5 current inputs (3 phase + 1 neutral + 1 sensitive earth). Configurable for 1 A or 5 A secondary. • Voltage (VT) Inputs 4 voltage inputs (3 phase + 1 residual). Typical ratings: 100/110 V or 100/√3 V. Core Protection Functions Comprehensive suite (software-configurable): • Directional/Non-directional overcurrent (50/51, 67) • Earth-fault protection (50N/51N, 67N) • Negative sequence overcurrent (46) • Thermal overload (49) • Over/Under voltage (27/59) & frequency (81) • Auto-reclosing (79) • Circuit breaker failure (50BF) Control & Automation • Control of switching devices (CB, disconnectors). • Programmable logic (CFC). • Synchrocheck (25). Measurement & Metering Class 0.5 for I, V, P, Q, S, PF, f, Energy, Harmonics. Human-Machine Interface (HMI) • Graphical LCD with backlight. • Keypad. • LED indicators. • Front USB port. Data Recording • Event recorder. • Disturbance recorder (fault oscillography). Communication Interfaces Base unit typically includes: • 1 x RS485 port (for IEC 60870-5-103 / Modbus RTU). • 1 x Ethernet port (RJ45). Optional plug-in modules for IEC 61850, IEC 60870-5-104, etc. Time Synchronization Supports IRIG-B, SNTP. Operating Temperature Standard Range: -25°C to +55°C (or -40°C to +70°C depending on specific -D variant; refer to datasheet). Mounting Panel-mounted. Configuration Software ABB PCM600. Typical Ordering Code A full code is longer, e.g., REF615C-D A5D1A1B1B1B5C..., specifying CT/VT ratings, I/O, and communication options.

Technical Parameters Parameter Category Specification Product Series / Platform ABB Relion® 615 Series (REF615 Platform) Device Type Numerical Feeder Protection and Control Relay (IED) Hardware Variant Suffix -E - Typically indicates: • Wide-range auxiliary power supply. • Extended operating temperature range. • Possibly a specific default I/O or communication configuration. Key Standards IEC 60255, IEC 61850 (Ed. 2), IEC 60870-5-103 Rated Auxiliary Supply (Us) Typical for -E version: 48 - 250 V DC / 48 - 240 V AC, 50/60 Hz (Auto-ranging). This is a key benefit, allowing installation in systems with various control voltages. Analog Inputs • Current (CT) Inputs 5 current inputs: 3 phase (IL1, IL2, IL3), 1 neutral (IN), 1 sensitive earth fault (Io). Configurable for 1 A or 5 A secondary. • Voltage (VT) Inputs 4 voltage inputs: 3 phase (UL1, UL2, UL3) + 1 residual/auxiliary voltage (Uo). Standard ratings: 100/110 V or 100/√3 V. Core Protection Functions Full suite included (configurable via software): • Directional/Non-directional phase & earth overcurrent (50/51, 67) • Two-step negative sequence overcurrent (46) • Thermal overload (49) • Over/Under voltage (27/59) & frequency (81) • Auto-reclosing (79) • Breaker failure (50BF) • Sensitive directional earth fault (67N) Control & Automation • Control of up to 5 switching devices (CB, disconnectors). • Programmable logic (CFC in PCM600). • Synchrocheck (25). Measurement & Metering Class 0.5 for: I, V, P, Q, S, PF, f, Energy (kWh, kVARh), Harmonics. Human-Machine Interface (HMI) • Graphical LCD with backlight. • Keypad navigation. • LED indicators. • Front USB port. Data Recording • Event recorder (>1000 events). • Disturbance recorder (oscillography). Communication Interfaces Base unit typically includes: • 1 x RS485 port (for IEC 60870-5-103 or Modbus RTU). • 1 x Ethernet port (RJ45, front or rear). Optional plug-in modules for: IEC 61850, IEC 60870-5-104, additional Ethernet, Profibus, etc. Time Synchronization IRIG-B, SNTP, PTP (IEEE 1588) support. Operating Temperature Extended Range: -40°C to +70°C (A key feature of the -E variant). Mounting Panel-mounted (compact design). Configuration Software ABB PCM600. Typical Ordering Context A complete order code would be longer, e.g., REF615C-E A5D1A1B1B1B5C..., where the subsequent letters/numbers define: CT/VT ratings, binary I/O count, communication modules, etc.

Technical Parameters Parameter Category Specification Product Series / Platform ABB Relion® 615 Series Device Type Numerical Feeder Protection and Control Relay (IED) Key Standards IEC 60255, IEC 61850 (Ed. 2), IEC 60870-5-103 Rated Auxiliary Supply (Us) 24-48 V DC, 48-250 V DC, 110-240 V DC/AC (Multiple versions available, e.g., -A, -D, -G suffixes). Analog Inputs • Current (CT) Inputs 5 current inputs: 3 phase (IL1, IL2, IL3), 1 neutral/earth (IN), 1 sensitive earth fault (optional, via core-balance CT). Configurable for 1 A or 5 A secondary. • Voltage (VT) Inputs 4 voltage inputs: 3 phase-to-earth voltages (UL1, UL2, UL3) + 1 residual voltage (U0) or an additional busbar voltage for synchrocheck. Typical ratings: 100/110 V or 100/√3 V. Core Protection Functions Comprehensive suite including: • Three-phase non-directional/directional overcurrent (50/51, 67) • Earth-fault protection (50N/51N, 67N) – sensitive & residual • Two-step negative-sequence overcurrent (46) for unbalance • Two-step thermal overload (49) for cables/transformers • Two-step over/under voltage (27/59) • Two-step over/under frequency (81) • Auto-reclosing (79) for overhead lines • Circuit breaker failure protection (50BF) Control & Interlocking • Bay control for up to 5 objects (e.g., CB, 2 disconnectors, 2 earthing switches). • Programmable logic with CFC (Continuous Function Chart) editor in PCM600. • Synchronism check (25) and live/dead line monitoring. Measurement & Metering High-accuracy measurement (Class 0.5) of: • Currents, Voltages (fundamental & true RMS) • Power (P, Q, S), Power Factor, Frequency • Energy (Import/Export, kWh, kVARh) • Harmonics (up to 15th) Human-Machine Interface (HMI) • Large graphical LCD with backlight. • Navigation keys and function keys. • LED indicators for status, alarms, and trips. • Front USB port for configuration and data extraction. Data Recording • Event recorder (≥ 1000 time-stamped events). • Disturbance recorder (fault recorder/oscillography) with analog channels and binary signals. Communication Interfaces • Rear communication slots: Supports plug-in modules for: - IEC 61850-8-1 (GOOSE, MMS) over Ethernet (copper/fiber) - IEC 60870-5-103/104, Modbus RTU/TCP, DNP3 • Front port: Ethernet (RJ45) for engineering access. Time Synchronization Supports SNTP, IRIG-B, and PTP (IEEE 1588). Operating Temperature -40°C to +70°C (Extended range) Mounting Panel-mounted (DIN rail or direct mounting). Compact dimensions. Configuration Software ABB PCM600 – Universal protection and control IED engineering tool. Typical Applications • Overhead line and cable feeder protection in distribution substations. • Transformer protection (for small-mid size transformers). • Capacitor bank protection and control. • Industrial plant feeder protection.