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ABB S202M-C10 (2CDS272001R0104) Miniature Circuit Breaker  

1. Key Parameters

• Product Model: S202M-C10
• Order Code: 2CDS272001R0104
• Product Series: ABB S200M Miniature Circuit Breakers (2-phase, C-curve, 6A~63A current ratings)
• Core Function: Provides overcurrent protection (overload + short circuit) for 2-phase low-voltage circuits; enables manual circuit switching (ON/OFF); prevents electrical fires and equipment damage from current anomalies
• Electrical Specifications:

  Parameter	Details	Performance Metrics
  Circuit Compatibility	- Phase Configuration: 2-phase (L1 + N, for single-phase 230V AC systems) - Voltage Rating: 230V AC (50Hz/60Hz) - Rated Current (Iₙ): 10A - Breaking Capacity (Iₙₚ): 10kA (at 230V AC, 50Hz)	Suitable for 230V AC circuits powering small appliances (e.g., refrigerators, TVs, office printers)
  Protection Characteristics	- Tripping Curve: C-curve (IEC 60898-1) - Overload Tripping: 1.45×Iₙ (no trip); 2.5×Iₙ (trip ≤1h); 10×Iₙ (trip ≤0.1s, short circuit) - Short-Circuit Tripping: ≥5×Iₙ (instantaneous trip, ≤0.01s)	Matches typical residential/commercial loads (avoids false trips from motor startup inrush, e.g., 1.5kW vacuum cleaner)
  Electrical Endurance	- ON/OFF Cycles: 10,000 mechanical cycles; 1,000 electrical cycles (at rated current) - Contact Resistance: ≤10mΩ (at rated current)	Ensures 10+ years of reliable operation in typical use (1~2 switch cycles per month)
  Insulation Performance	- Insulation Resistance: ≥100MΩ (500V DC, between live parts and ground) - Dielectric Strength: 2.5kVrms (1min, between live parts and ground)	Withstands voltage spikes (e.g., lightning-induced surges) without insulation breakdown

• Mechanical Specifications:
  • Housing Material: Flame-retardant thermoplastic (UL94 V-0); Arc-resistant design (prevents arc flash during tripping)
  • Dimensions (W×H×D): 18mm × 85mm × 65mm (DIN rail-mountable; slim width for dense distribution boards)
  • Mounting: 35mm standard DIN rail (TS 35/7.5); Snap-on installation (no tools required); Compatible with ABB S200M accessories (e.g., shunt trips, auxiliary contacts)
  • Weight: Approximately 50g
  • Terminals: 4× screw terminals (input L1/N + output L1/N); Accepts wire sizes: 1.5mm²~6mm² (solid/stranded copper wire)
  • Operating Mechanism: Toggle lever (ON/OFF/TRIP); Visual trip indicator (lever moves to mid-position when tripped)
• Environmental Ratings:
  • Operating Temperature Range: -25℃~+60℃ (-13℉~140℉)
  • Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
  • Humidity Tolerance: ≤95% RH (non-condensing, 40℃; suitable for damp environments like bathrooms/kitchens)
  • Vibration Resistance: 10~500Hz, 1g acceleration (IEC 60068-2-6; No unintended tripping or lever movement)
  • Shock Resistance: 15g acceleration (11ms duration, IEC 60068-2-27; Maintains protection characteristics)
• Compliance Standards: IEC 60898-1 (miniature circuit breakers), EN 60898-1, UL 489 (North American safety), CE, RoHS, CSA C22.2 No. 5 (Canadian safety)

2. Key Features

• 2-Phase C-Curve Protection: Optimized for 230V AC single-phase systems (L1 + N) with C-curve tripping—avoids false trips from temporary inrush currents (e.g., 1.5kW washing machine startup, ~15A inrush for 0.5s) while rapidly tripping (<0.01s) during short circuits (e.g., 50A fault from wire insulation failure), protecting circuits and equipment.
• 10kA Breaking Capacity: Safely interrupts up to 10kA short-circuit current (at 230V AC)—exceeds typical residential/commercial fault currents (3kA~5kA), preventing arc flash and fire hazards during severe electrical faults.
• Ultra-Slim 18mm Width: Compact design fits densely packed distribution boards—enables installation of more circuits in limited space (e.g., a 12-module DB can hold 12 S202M-C10 breakers vs. 8 bulkier 25mm MCBs), reducing DB size by 30%.
• Visual Trip Indicator: Toggle lever moves to a mid-position (between ON/OFF) when tripped—provides clear visual confirmation of a fault (no need for voltage testers), simplifying troubleshooting for electricians or homeowners.
• Flame-Retardant & Arc-Resistant Housing: UL94 V-0 rated thermoplastic resists ignition and prevents flame spread (critical for enclosed DBs), while arc-resistant design contains electrical arcs during tripping—reducing fire risks in residential/commercial spaces.
• Global Safety Compliance: Meets IEC, UL, CSA, and CE standards—certified for use in 100+ countries (e.g., EU, North America, Asia), eliminating the need for regional-specific MCBs and simplifying electrical system design for international projects.
• Tool-Free DIN Rail Installation: Snap-on mounting to 35mm DIN rails (no screws required)—cuts installation time by 50% compared to bolt-mounted breakers; Secure fit prevents vibration-induced dislodgment in commercial buildings (e.g., offices with HVAC vibration).

3. Application Fields

• Residential Electrical Distribution: Primary application—protecting home circuits:
  • Kitchen Circuits: Protects 230V AC kitchen circuits powering small appliances (e.g., refrigerator, microwave, toaster) with total load ≤2.3kW (10A × 230V); C-curve tripping avoids false trips from microwave startup inrush (~12A), while short-circuit protection prevents fires from faulty toaster wiring.
  • Bedroom/Living Room Circuits: Safeguards circuits powering TVs, air conditioners (1.5kW), and lighting (total load ≤2.3kW); Visual trip indicator helps homeowners quickly identify tripped circuits (e.g., from overloaded power strips).
• Commercial Office Spaces: Circuit protection for office equipment:
  • Workstation Circuits: Protects 230V AC circuits powering office workstations (computers, printers, monitors) with 4~6 workstations per circuit (total load ≤2.3kW); 10kA breaking capacity handles fault currents from shorted computer power supplies.
  • Meeting Room Circuits: Safeguards circuits powering projectors, audio systems, and lighting (total load ≤2.3kW); Slim 18mm design fits dense office DBs, enabling more circuits to be installed for large office floors.
• Retail & Small Commercial Spaces: Protection for retail equipment:
  • Retail Display Circuits: Protects 230V AC circuits powering LED displays, cash registers, and small refrigerators (total load ≤2.3kW); Humidity tolerance (≤95% RH) makes it suitable for refrigerated display areas (e.g., grocery store dairy sections).
  • Small Restaurant Circuits: Safeguards circuits powering countertop appliances (e.g., coffee machines, blenders) in small cafes; Flame-retardant housing complies with commercial fire codes, reducing fire risks from appliance faults.
• Light-Industrial Workshops: Protection for low-power machinery:
  • Small Workshop Circuits: Protects 230V AC circuits powering light-duty tools (e.g., 1kW drill presses, 0.5kW sanders) with total load ≤2.3kW; Vibration resistance (1g) prevents unintended tripping from workshop tool vibration.
  • Laboratory Circuits: Safeguards circuits powering low-power lab equipment (e.g., centrifuges, small incubators) with total load ≤2.3kW; Dielectric strength (2.5kVrms) withstands voltage spikes from lab power supplies.

4. Precautions

• Current Rating Compatibility (Critical): Use only for circuits with maximum load ≤10A (2.3kW at 230V AC)—overloading (e.g., powering a 3kW space heater, ~13A) causes the MCB to trip continuously or fail to protect the circuit, leading to overheated wires and fire risks. Calculate total circuit load before installation.
• Installation & Wiring:
  • Power Disconnection: Turn off the main power supply before installing/wiring—live 230V AC terminals pose lethal shock risks. Use insulated tools and lockout/tagout procedures; Verify power is off with a voltage tester.
  • Terminal Torque: Tighten wire terminals to 1.5 N·m (for 1.5mm²~6mm² wire)—under-tightening causes high contact resistance (overheated terminals, discoloration), while over-tightening damages terminal threads (loose connections over time). Use a torque screwdriver for accuracy.
  • Polarity & Phase Wiring: Connect input L1 to the line terminal and input N to the neutral terminal—reversed polarity (L1 to neutral, N to line) does not affect protection but violates electrical codes and can damage polarized appliances (e.g., some computers).
• Operation & Maintenance:
  • Trip Reset Procedure: After tripping, first identify and resolve the fault (e.g., unplug overloaded appliances, repair shorted wiring) before resetting the lever—resetting without fault correction causes repeated tripping and accelerates MCB wear. Do not force the lever into ON position if it trips immediately (indicates a persistent fault).
  • Regular Testing: Test the MCB monthly by switching it to OFF and back to ON—ensures the operating mechanism functions properly; Stiff or unresponsive levers indicate internal wear, requiring MCB replacement.
• Environmental Limitations:
  • Temperature & Humidity: Do not operate above +60℃ or in condensing humidity—high temperatures (>60℃) degrade the tripping mechanism (false trips or no trips), while condensation causes terminal corrosion (intermittent connections). Install DBs in well-ventilated, dry areas (avoid attics or damp basements).
  • Dust & Contamination: Keep the MCB and DB free of dust, oil, or metal shavings—contamination between terminals causes leakage current (false trips) or short circuits. Clean DBs quarterly with compressed air (0.3MPa) in dusty environments (e.g., workshops).
• Replacement & Lifespan:
  • End-of-Life Indicators: Replace the MCB if: (1) it trips without a load, (2) terminals show overheating (discoloration), (3) the lever is stiff/unresponsive, or (4) it has been in service for >15 years—aged MCBs lose protection accuracy (e.g., fail to trip during overloads), increasing fire risks.
  • Genuine ABB Replacements: Replace with identical ABB S202M-C10 MCBs—non-genuine MCBs may have incorrect tripping curves (e.g., B-curve instead of C-curve) or lower breaking capacity (5kA vs. 10kA), leading to inadequate protection
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The structure and details of the product：

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