Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 690 V AC (±10%) Maximum Continuous Voltage (Uc) 320 V AC (L-N) / 420 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 25.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 60 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.9 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 (typically 35 kA) Recommended Backup Protection 160A gL/gG fuse (consult installation manual for exact rating) Connection Terminals Line/Neutral: 25-95 mm² Earth/PE: 35-95 mm² (copper) Insulation Coordination Enhanced for 690V systems (clearance: ≥5.5mm, creepage: ≥12.5mm) Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green=OK, red=fault) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 3.3 kg Model Interpretation PSTB: Product series 250: Discharge capacity (25.0 kA In) 690: Voltage rating (690V system) 70: Configuration code

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT, TN-C-S systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 255 V AC (L-N) / 320 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 25.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 60 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.3 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 (typically 35 kA) Recommended Backup Protection 160A gL/gG fuse or equivalent circuit breaker (verify with installation manual) Connection Terminals Line/Neutral: 25-95 mm² Earth/PE: 35-95 mm² (copper) Auxiliary Contacts Optional remote signaling contact available Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green=OK, red=fault) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 3.2 kg Model Interpretation PSTB: Product series 250: Discharge capacity (25.0 kA In) 600: Iimp = 25 kA 70: Configuration variant

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 690 V AC (±10%) Maximum Continuous Voltage (Uc) 320 V AC (L-N) / 420 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 21.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 50 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.8 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 (typically 25 kA) Recommended Backup Protection 125A gL/gG fuse (consult installation manual for exact rating) Connection Terminals Line/Neutral: 16-70 mm² Earth/PE: 25-70 mm² (copper) Insulation Coordination Enhanced for 690V systems (clearance: ≥5.5mm, creepage: ≥12.5mm) Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green=OK, red=fault) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 2.8 kg Model Interpretation PSTB: Product series 210: Discharge capacity (21.0 kA In) 690: Voltage rating (690V system) 70: Configuration code

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT, TN-C-S systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 255 V AC (L-N) / 320 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 21.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 50 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.2 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 (typically 25 kA) Recommended Backup Protection 125A gL/gG fuse or equivalent circuit breaker (verify with installation manual) Connection Terminals Line/Neutral: 16-70 mm² Earth/PE: 25-70 mm² (copper) Auxiliary Contacts Not standard (optional accessory may be available) Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green=OK, red=fault) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 2.8 kg Model Interpretation PSTB: Product series 210: Discharge capacity (21.0 kA In) 600: Iimp = 25 kA 70: Configuration variant

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 690 V AC (±10%) Maximum Continuous Voltage (Uc) 320 V AC (L-N) / 420 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 17.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 40 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.5 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 Recommended Backup Protection 100A gL/gG fuse (consult installation manual for exact rating) Connection Terminals Line/Neutral: 16-70 mm² Earth/PE: 25-70 mm² (copper) Insulation Coordination Enhanced for 690V systems (clearance: ≥5.5mm, creepage: ≥12.5mm) Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green=OK, red=fault) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 2.5 kg Model Interpretation PSTB: Product series 170: Discharge capacity (17.0 kA In) 690: Voltage rating (690V system) 70: Configuration code

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 255 V AC (L-N) / 320 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 17.0 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 40 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.0 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 Recommended Backup Protection 100A gL/gG fuse or equivalent circuit breaker (verify with installation manual) Connection Terminals Line/Neutral: 16-50 mm² Earth/PE: 25-50 mm² (copper) Auxiliary Contacts Not standard (optional accessory may be available) Housing Protection IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green/red) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 72 × 62 mm (confirm with official datasheet) Weight Approximately 2.0 kg Model Interpretation PSTB: Product series 170: Discharge capacity (17.0 kA In) 600: Iimp = 25 kA 70: Configuration variant

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11 Protection Type Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT, TN-C-S systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 255 V AC (L-N) / 320 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 17.5 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 40 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.0 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand According to IEC 61643-11 Recommended Backup Protection 100A gL/gG fuse (consult installation manual for exact rating) Connection Terminals Line/Neutral: 16-50 mm² Earth/PE: 25-50 mm² (copper) Auxiliary Contacts Not standard (optional accessory may be available) Protection Degree IP20 (for indoor enclosure mounting) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color flag (green/red) Mounting DIN-rail (35 mm) Dimensions (H×W×D) ~ 288 × 72 × 62 mm (confirm with official datasheet) Weight Approximately 2.2 kg Model Interpretation PST: Product series 175: Discharge capacity (17.5 kA In) 600: Iimp = 25 kA 70: Configuration code

Technical Parameters Parameter Specification / Value Standards Compliance IEC/EN 61643-11 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 400 V AC, 3P+N (TN-S, TT systems) Rated Voltage (Un) 400 V AC (±10%) Maximum Continuous Voltage (Uc) 320 V AC (L-N) / 420 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 14 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 30 kA (per mode) Voltage Protection Level (Up) @ In ≤ 2.2 kV (Line-Neutral) Response Time < 100 ns Short-Circuit Withstand Capacity 25 kA RMS (per IEC 61643-11) Recommended Backup Protection 80A-100A gL/gG fuse or equivalent circuit breaker (consult installation manual) Connection Terminals Line/Neutral: 16-70 mm² Earth/PE: 25-70 mm² (copper) Auxiliary Contacts Optional 1 changeover contact (remote signaling) Housing Protection IP20 (for indoor cabinet installation) Operating Temperature -40°C to +80°C Storage Temperature -40°C to +85°C Status Indication Visual window with color-coded flag (green/red) Mounting DIN-rail mountable (35 mm) Dimensions (H×W×D) ~ 288 × 90 × 75 mm (confirm with official datasheet) Weight Approximately 2.8 kg Model Interpretation PSTX: Premium series 142: Product variant (14 kA In) 600: Iimp = 25 kA 70: Generation/configuration code

Technical Parameters Parameter Specification / Value Standards Compliance IEC/EN 61643-11 Ed.3, IEC 61643-31, IEC 60099-8, IEEE C62.72, UL 1449 4th Ed. Protection Classification Type 1 + Type 2 Combined (Class 0 + I + II) System Configuration 690 V AC, 3P+N+PE (TN-S, IT, TT systems with mega-current capacity) Rated Voltage (Un) 690 V AC (+10%/-15%) Maximum Continuous Voltage (Uc) 510 V AC (L-N) / 880 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 40 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 84 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 150 kA (per mode) Voltage Protection Level (Up) @ In ≤ 3.8 kV (Line-Neutral) Total Discharge Capacity >220 kJ per phase Response Time < 10 ns (primary quantum clamping stage) Follow Current Interruption < 1.5 ms (multi-chamber spark gap recovery) Short-Circuit Withstand 100 kA RMS (1 second) Recommended Backup Protection 500A-630A gL/gG fuse or equivalent ACB (see quantum installation manual) Connection Terminals Line/Neutral: 95-240 mm² Earth/PE: 120-240 mm² (copper/copper-clad aluminum) Auxiliary Contacts 4 independent quantum changeover contacts (10A/600V AC) Housing Protection IP20 / NEMA 3R (indoor/outdoor cabinet with anti-corrosion coating) Operating Temperature -50°C to +90°C (full military-grade performance range) Storage Temperature -55°C to +95°C Altitude Rating Up to 6000 m without derating Relative Humidity 0-100% (condensing conditions acceptable) Seismic Rating IEEE 693 (High Level) - 1.0g horizontal, 0.8g vertical Status Indication Quantum tri-color adaptive indicator with predictive analytics and remote cloud signaling Mounting Seismic-rated heavy-duty DIN-rail (45/75 mm) or direct panel mounting with harmonic dampeners Dimensions (H×W×D) ~ 480 × 155 × 125 mm (verify with official quantum datasheet) Weight Approximately 8.5 kg Model Decoding PSTX: Premium surge protection series 840: Discharge capacity (84 kA In) 690: Voltage class 70: Quantum generation variant

Technical Parameters Parameter Specification / Value Standards Compliance IEC/EN 61643-11, IEC 61643-31, IEC 60099-4, IEEE C62.41 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N+PE (TN-S, IT, TT systems) Rated Voltage (Un) 690 V AC (±10%) Maximum Continuous Voltage (Uc) 480 V AC (L-N) / 830 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 35 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 72 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 120 kA (per mode) Voltage Protection Level (Up) @ In ≤ 3.5 kV (Line-Neutral) Total Discharge Capacity >150 kJ per phase Response Time < 15 ns (primary clamping stage) Follow Current Interruption < 2 ms (spark gap recovery) Short-Circuit Withstand 80 kA RMS (1 second) Recommended Backup Protection 315A-400A gL/gG fuse or equivalent MCCB (see installation manual) Connection Terminals Line/Neutral: 70-185 mm² Earth/PE: 95-185 mm² (copper) Auxiliary Contacts 2 independent changeover contacts (5A/250V AC) Housing Protection IP20 / NEMA 1 (indoor cabinet installation) Operating Temperature -45°C to +85°C (full performance range) Storage Temperature -50°C to +90°C Altitude Rating Up to 5000 m without derating Relative Humidity 5-95% (non-condensing) Status Indication Tri-color visual indicator (green/amber/red) with remote contact signaling Mounting Heavy-duty DIN-rail (35/45 mm) or direct panel mounting with anti-vibration mounts Dimensions (H×W×D) ~ 420 × 135 × 105 mm (verify with official datasheet) Weight Approximately 6.2 kg Model Decoding PSTX: Premium surge protection series 720: Discharge capacity (72 kA In) 690: Voltage class 70: Generation variant

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11, IEC 61643-31, IEC 60099-4 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N+PE (TN-S, IT, TT systems compatible) Maximum Continuous Voltage (Uc) 460 V AC (L-N) / 800 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 30 kA (per mode, all poles) Nominal Discharge Current (In) 8/20 µs 57 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 100 kA (per mode) Voltage Protection Level (Up) @ In ≤ 3.2 kV (Line-Neutral) Response Time < 20 ns (primary clamping stage) Short-Circuit Withstand Capacity 65 kA RMS (1 second) Recommended Backup Protection 250A-315A gL/gG fuse or equivalent MCCB (specific ratings in installation manual) Connection Terminals Line/Neutral: 50-150 mm² Earth/PE: 70-150 mm² (copper or aluminum) Auxiliary Contacts 2 changeover contacts (NO/NC) for comprehensive remote monitoring Housing Protection IP20 / NEMA 1 (for enclosure installation) Operating Temperature Range -40°C to +85°C (full performance) Altitude Rating Up to 4000 m without derating Status Indication Multi-stage visual (green/yellow/red) + remote contact signaling + optional LED indicators Mounting Reinforced DIN-rail (35/45 mm) or direct panel mounting with vibration dampeners Dimensions (H×W×D) ~ 390 × 125 × 95 mm (confirm with official datasheet) Weight Approximately 4.5 kg Model Interpretation PSTX: Premium surge protection series 570: Discharge capacity platform (57 kA In) 690: System voltage class 70: Generation/configuration code

Technical Parameters Parameter Specification / Value Standard Compliance IEC/EN 61643-11, IEC 61643-31 Protection Classification Type 1 + Type 2 Combined (Class I + II) System Configuration 690 V AC, 3P+N (TN-S, TT systems) Maximum Continuous Voltage (Uc) 440 V AC (L-N) / 760 V AC (L-L) Lightning Impulse Current (Iimp) 10/350 µs 25 kA (per mode) Nominal Discharge Current (In) 8/20 µs 47 kA (per mode) Maximum Discharge Current (Imax) 8/20 µs 80 kA (per mode) Voltage Protection Level (Up) @ In ≤ 3.0 kV (Line-Neutral) Response Time < 25 ns (varistor stage) Short-Circuit Withstand Capacity 50 kA (IEC 61643-11 compliant) Recommended Backup Protection 200A gL/gG fuse or equivalent circuit breaker (consult installation manual) Connection Terminals Line/Neutral: 35-120 mm² Earth/PE: 50-120 mm² Auxiliary Contacts 1 changeover contact (NO/NC) for remote monitoring Housing Protection IP20 (for indoor cabinet installation) Operating Temperature Range -40°C to +80°C Status Indication Multi-color visual indicator + remote contact signaling Mounting DIN-rail (35 mm) or direct panel mounting Dimensions (H×W×D) ~ 360 × 110 × 85 mm (confirm with official datasheet) Model Decoding PSTX: Premium series 470: Product platform (47 kA In) 690: Voltage rating 70: Configuration variant