S202UDC-K20
Product ID:80079
Updated: 2026/4/4
Key Features
- 1Protect DC circuits with a high-performance 20A, 125VDC miniature breaker. 2、Ensure reliable operation with a UL 489 certified and compact design. 3、Limit energy and current to enhance system safety and component longevity. 4、Rely on electromechanical tripping for short circuits and delayed thermal tripping for overloads. 5、Simplify installation using DIN rail mounting and screw terminals for versatility.
Technical Specifications
Detailed engineering parameters
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Standards | UL 489 | Tripping Characteristic | K |
| Rated Operational Voltage | 125 V DC acc. to IEC 60898-1 250 V acc. to IEC 60947-2 125 V | Rated Insulation Voltage (Ui) | 440 V |
| Rated Impulse Withstand Voltage (Uimp) | 4 kV at 2000 m 5 kV at Sea Level 6.2 kV | Primary Rated Impulse Withstand Voltage | 4 kV |
| Input Voltage Type | DC | Rated Current (In) | 20 A |
| Rated Short-Circuit Capacity | (230 V AC) 14 kA (230 V) 14 kA | Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (230 V AC) 14 kA (230 V) 14 kA |
| Rated Conditional Short-Circuit Current (Inc) | (230 V) 14 kA | Rated Service Short-Circuit Breaking Capacity (Ics) | (230 V AC) 14 kA |
| Rated Frequency (f) | DC | Power Loss | 5.8 W at Rated Operating Conditions per Pole 2.9 W |
| Power Supply Connection | Please Note Polarity of Device | Contact Position Indication | Red ON / Green OFF |
| Energy Limiting Class | 3 | Mechanical Endurance | 20000 cycle |
| Number of Protected Poles | 2 | Number of Poles | 2 |
| Overvoltage Category | III | Tightening Torque | 2.8 N·m |
| Screw Terminal Type | Failsafe Bi-directional Cylinder-lift Terminal | Actuator Marking | I / O |
| Actuator Material | Insulation Group II, Black, Sealable | Housing Material | Insulation Group I, 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 |
| Remarks | Please note polarity of device | Connecting Capacity | Busbar 10 / 10 mm² Flexible with Ferrule 0.75 ... 16 mm² Flexible 0.75 ... 16 mm² Rigid 0.75 ... 25 mm² Stranded 0.75 ... 25 mm² |
| Installation Size | acc. to DIN 43880 2 | Terminal Type | Double Clamp |
| Ambient Air Temperature | Operation -25 ... +55 °C Storage -40 ... +70 °C | Degree of Protection | IP20 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 | 30g 3 shocks 11 ms |
| Environmental Information | 9AKK107680A6947 | Maximum Operating Voltage UL/CSA | 250 V DC |
| Interrupting Rating acc. to UL1077 | (125 V DC) 14 kA | Interrupting Rating acc. to UL489 | (125 V DC) 14 kA (250 V DC) 14 kA |
| Connecting Capacity UL/CSA | Busbar 18-8 AWG Conductor 18-4 AWG | Tightening Torque UL/CSA | 25 in·lb |
| Width in Number of Modular Spacings | 2.0 | Product Net Width | 35 mm |
| Product Net Height | 85 mm | Product Net Depth / Length | 69 mm |
| Product Net Weight | 0.3 kg | Pole Net Weight | 0.14 kg |
| Built-In Depth (t2) | 69 mm | 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) | 4899 >> Miniature circuit breaker (MCB) screw-in model | Object Classification Code | F |
| Manufacturer ID | 2CDS272517R0487 |
Specifications may be subject to change without notice