Product Model
S203-Z8NA

Selling Points
- 1Current limiting and dual tripping mechanisms for enhanced safety.
- 2Compliant with IEC/EN 60898-1 and IEC/EN 60947-2 standards.
- 3Available in different characteristics (B,C,D,K,Z) and configurations (1P,1P+N,2P,3P,3P+N,4P).
- 4Bottom-fitting auxiliary contact saves 50% space.
- 5Suitable for residential, commercial, and industrial applications.
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Parameter | Value | Parameter | Value |
---|---|---|---|
Standards | IEC/EN 60898-1 IEC/EN 60947-2 UL 1077 | Tripping Characteristic | Z |
Rated Operational Voltage | acc. to IEC 60898-1 400 V AC acc. to IEC 60898-1 400 V acc. to IEC 60947-2 440 V AC | Operational Voltage | Maximum (Incl. Tolerance) 440 V AC |
Rated Insulation Voltage (Ui) | acc. to IEC/EN 60664-1 440 V | Rated Impulse Withstand Voltage (Uimp) | 4 kV at 2000 m 5 kV at Sea Level 6.2 kV |
Dielectric Test Voltage | 50/60 Hz-1 min: 2 kV | Input Voltage Type | AC |
Rated Current (In) | 8 A | Rated Short-Circuit Capacity | (AC) 6 kA (DC) 6 kA (400 V AC) 6 kA (400 V) 6 kA |
Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (230 V AC) 20 kA (400 V AC) 10 kA (440 V AC) 10 kA (230 V) 20 kA (400 V) 10 kA | Rated Conditional Short-Circuit Current (Inc) | (230 V) 20 kA (400 V) 10 kA |
Rated Service Short-Circuit Breaking Capacity (Ics) | (230 V AC) 15 kA (400 V AC) 7.5 kA (440 V AC) 7.5 kA | Frequency (f) | 50 Hz |
Rated Frequency (f) | 50 / 60 Hz | Power Loss | 8 W at Rated Operating Conditions per Pole 2 W |
Power Supply Connection | Arbitrary | Contact Position Indication | Red ON / Green OFF |
Energy Limiting Class | 3 | Electrical Endurance | 20000 AC cycle |
Mechanical Endurance | 20000 cycle | Number of Protected Poles | 3 |
Number of Poles | 3+N | Overvoltage Category | III |
Position of Neutral Terminals | Right | Tightening Torque | 2.8 N·m |
Mounting Type | DIN-Rail | Screw Terminal Type | Failsafe Bi-directional Cylinder-lift Terminal |
Actuator Marking | I / O | Actuator Material | Insulation Group II, Black, Sealable |
Housing Material | Insulation Group II, RAL 7035 | Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715 TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
Mounting Position | any | Recommended Screw Driver | Pozidriv 2 |
Accessories Available | Yes | Connecting Capacity | Busbar 10 / 10 mm² Flexible with Ferrule 0.75 ... 25 mm² Flexible 0.75 ... 25 mm² Rigid 0.75 ... 35 mm² Rigid 0.75 ... 35 mm² Stranded 0.75 ... 35 mm² |
Installation Size | acc. to DIN 43880 1 | Wire Stripping Length | 12.5 mm |
Terminal Type | Screw Terminals | Ambient Air Temperature | Operation -25 ... +55 °C Storage -40 ... +70 °C |
Degree of Protection | IP20 IP40 Enclosure with Cover IP40 | Pollution Degree | 3 |
Environmental Conditions | 28 cycles with 55 °C / 90-96 % and 25 °C / 95-100 % | Resistance to Vibrations | 20 Cycles with Load 0.8 In: 5g 5 ... 150 ... 5 Hz |
Resistance to Shock acc. to IEC 60068-2-27 | 25g 2 shocks 13 ms | Maximum Operating Voltage UL/CSA | 110 V DC 480Y / 277 V AC |
Interrupting Rating acc. to UL1077 | (110 V DC) 10 kA (277 V AC) 6 kA (480Y / 277 V AC) 6 kA | Connecting Capacity UL/CSA | Busbar 18-8 AWG Conductor 18-4 AWG |
Tightening Torque UL/CSA | 18 in·lb | Width in Number of Modular Spacings | 4.0 |
Product Net Width | 70 mm | Product Net Height | 88 mm |
Product Net Depth / Length | 69 mm | Product Net Weight | 0.52 kg |
Pole Net Weight | 0.125 kg | Built-In Depth (t2) | 69 mm |
Dimension Diagram | 2CDC022007F0010 | ETIM 8 | EC000042 - Miniature circuit breaker (MCB) |
ETIM 9 | EC000042 - Miniature circuit breaker (MCB) | WEEE Category | 5. Small Equipment (No External Dimension More Than 50 cm) |
WEEE B2C / B2B | Business To Business | CN8 | 8536 20 10 |
UNSPSC | 39121603 | eClass | V11.0 : 27141901 |
IDEA Granular Category Code (IGCC) | 4897 >> Miniature circuit breakers | Object Classification Code | F |
Manufacturer ID | 2CDS253103R0408 |
Specifications may be subject to change without notice