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ABB S202-C2 2CDS252001R0024 Miniature Circuit Breaker 

1. Key Parameters

• Product Model: S202-C2 (Ordering Part Number: 2CDS252001R0024)
• Product Series: ABB S200 Series Miniature Circuit Breakers (Low-Voltage Residential/Commercial Protection)
• Core Function: Protects 2-pole low-voltage circuits from overcurrent and short-circuit faults; provides thermal-magnetic tripping for overload/short-circuit discrimination; enables manual circuit reset after faults; integrates with standard DIN rail enclosures
• Electrical & Protection Specifications:

  Parameter	Details	Performance Metrics
  Pole Configuration	- Poles: 2 (2-pole, for line + neutral protection) - Connection Type: Screw terminals (accepts 0.5mm²~6mm² copper/aluminum conductors) - Wire Stripping Length: 8mm (for secure termination)	2-pole design ensures both line and neutral are disconnected during faults, enhancing safety in residential/commercial circuits
  Current Ratings	- Rated Current (In): 2A (adjusted to circuit load) - Overload Tripping Range: 1.05×In (no trip) ~ 1.45×In (trip, ≤1 hour) - Short-Circuit Tripping Current (Isc): ≥5×In (instantaneous trip) - Breaking Capacity (Icu): 6kA (at 230V AC, 50Hz)	Thermal-magnetic tripping discriminates between overloads (slow trip) and short circuits (instant trip); 6kA breaking capacity handles typical residential short-circuit currents
  Voltage Ratings	- Rated Voltage (Ue): 230V AC (single-phase, line-neutral); 400V AC (line-line) - Frequency: 50Hz/60Hz (universal) - Dielectric Strength: 2kV AC (between poles, 1 minute)	Universal voltage/frequency compatibility suits global residential/commercial electrical systems (e.g., 230V AC in Europe, 120V AC in North America with derating)

• Mechanical & Operational Specifications:

  Parameter	Details	Performance Metrics
  Mechanical Design	- Dimensions: 18mm (W) × 89mm (H) × 65mm (D) - Mounting Type: 35mm DIN rail (EN 50022) - Housing Material: Flame-retardant thermoplastic (UL 94 V0) - Weight: Approximately 55g - Operating Mechanism: Toggle switch (on/off/reset positions)	Ultra-narrow 18mm width enables dense DIN rail mounting (up to 55 units per meter); compact size fits standard residential distribution boards
  Tripping Mechanism	- Type: Thermal-magnetic (bimetallic strip for overloads, electromagnet for short circuits) - Reset Type: Manual (requires physical toggle after tripping) - Trip Indicator: Visual (toggle switch moves to "trip" position)	Thermal-magnetic tripping ensures reliable protection across temperature variations (-25℃~+60℃); manual reset prevents automatic circuit restoration after faults

• Environmental Ratings:

  Parameter	Details	Performance Metrics
  Operating Conditions	- Operating Temperature Range: -25℃~+60℃ (-13℉~140℉) - Storage Temperature Range: -40℃~+85℃ (-40℉~185℉) - Humidity Tolerance: 5%~95% RH (non-condensing, 40℃) - Vibration Resistance: 10~500Hz, 1g acceleration (IEC 60068-2-6) - EMC Compliance: EN 61000-6-2 (immunity: Level 2)	Wide temperature range suits unconditioned spaces (e.g., attic distribution boards); EMC immunity resists interference from household appliances (e.g., microwaves, refrigerators)

• Compliance Standards: CE, UL 489, CSA C22.2 No.5, IEC 60898-1 (MCBs for household and similar uses), RoHS, ISO 9001 |

2. Core Features

• 2-Pole Full-Circuit Protection: Disconnects both line and neutral conductors during faults—eliminates the risk of "neutral float" (voltage on neutral wire) in residential circuits, enhancing safety for users and sensitive equipment (e.g., laptops, smartphones).
• Thermal-Magnetic Tripping: Uses a bimetallic strip for overloads (slow, temperature-dependent trip) and an electromagnet for short circuits (instant trip)—discriminates between harmless temporary overloads (e.g., turning on a vacuum) and dangerous short circuits, reducing nuisance tripping.
• Compact DIN Rail Design: 18mm width fits standard residential/commercial distribution boards—enables easy retrofitting or expansion of electrical systems (e.g., adding a new lighting circuit to a home) without replacing the entire panel.
• Flame-Retardant Durability: UL 94 V0 thermoplastic housing—resists ignition and prevents flame spread in case of internal arcing, meeting strict fire safety standards for residential buildings (e.g., IEC 60364 wiring regulations).
• Universal Compatibility: 230V/400V AC and 50/60Hz operation—works with global electrical systems; accepts both copper and aluminum conductors (0.5mm²~6mm²), simplifying installation in regions with different wiring standards.
• Manual Reset & Visual Trip Indicator: Toggle switch moves to a distinct "trip" position when a fault occurs—provides clear visual confirmation of a circuit issue; manual reset ensures users investigate the fault (e.g., unplugging a faulty appliance) before restoring power.
• High Breaking Capacity: 6kA breaking capacity—safely interrupts high short-circuit currents (common in residential wiring faults) without damage to the MCB, preventing electrical fires and equipment destruction.

3. Application Fields

• Residential Electrical Systems: Home Circuit Protection:
  • Lighting Circuits: Protects 2A low-power lighting circuits (e.g., LED downlights, bedroom lamps)—prevents overloads from adding too many bulbs; 2-pole design eliminates neutral voltage risk.
  • Small Appliance Outlets: Safeguards dedicated outlets for low-power devices (e.g., phone chargers, small fans)—thermal-magnetic tripping avoids nuisance trips from temporary current spikes (e.g., plugging in a hair dryer).
  • Home Automation Circuits: Protects low-voltage home automation wiring (e.g., smart thermostat, security camera power supplies)—compact size fits in small distribution boxes; EMC immunity resists interference from smart devices.
• Commercial & Office Spaces: Office Circuit Safety:
  • Desk Power Outlets: Protects 2A circuits for office equipment (e.g., laptops, printers)—2-pole protection prevents damage to sensitive electronics from neutral faults; manual reset ensures IT teams resolve issues before restoring power.
  • Lighting Control Systems: Safeguards dimmable LED lighting circuits—thermal tripping handles gradual overloads (e.g., multiple dimmer switches on one circuit); compact design fits in ceiling-mounted junction boxes.
• Retail & Small Businesses: Store Electrical Protection:
  • Display Lighting: Protects 2A LED display lighting circuits (e.g., retail shelf lights, window displays)—high breaking capacity handles wiring faults in busy store environments; flame-retardant housing reduces fire risk.
  • Point-of-Sale (POS) Systems: Safeguards low-power POS peripheral circuits (e.g., barcode scanners, receipt printers)—2-pole protection ensures both line and neutral are disconnected, protecting expensive POS equipment.
• Light Industrial & Workshop Settings: Auxiliary Circuit Protection:
  • Bench Tool Circuits: Protects 2A circuits for small workshop tools (e.g., soldering irons, small drills)—thermal-magnetic tripping handles tool startup inrush; DIN rail mounting fits in workshop utility panels.
  • Test & Measurement Equipment: Safeguards low-power test circuits (e.g., multimeters, oscilloscope power supplies)—high dielectric strength prevents cross-talk between circuits; compact size saves space in test benches.

The structure and details of the product：

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