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1489-M1C050 A-B Miniature Circuit Breaker
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- Description 1489-M1C050 A-B Miniature Circuit Breaker Product Dimensions： Product Description (Detailed Explanation) The 1489-M series is specifically engineered for applications where high-level protection is required. Unlike “supplementary protectors,” the 1489-M1C050 is a fully rated branch circuit breaker. This means it can be used for the primary protection of branch circuits according to NEC (National Electrical Code) standards. The model number 1489-M1C050 indicates: M: Miniature Circuit Breaker. 1: Single-pole (1-Pole) construction. C: “C” Trip Curve (Magnetic trip at 5 to 10 times the rated current). 050: 5.0 Ampere current rating. Product Parameters (Technical Specifications) Parameter Category Specification Number of Poles 1-Pole Rated Current ($I_n$) 5 Amperes Trip Curve Type C (Standard Inductive) Rated Voltage 480Y/277V AC; 48V/96V DC Interrupting Capacity 10 kA (UL/CSA); 15 kA (IEC) Mechanical Life 20,000 Operations Mounting Type 35mm DIN Rail Wire Gauge Range 18…4 AWG ($1.0…25 mm^2$) Standard Compliance UL 489, CSA C22.2 No. 5, IEC/EN 60947-2 Product Advantages (Key Benefits) Branch Circuit Rated: Meets UL 489 requirements, allowing it to be used in place of fuses for branch protection, which simplifies panel design. AC and DC Versatility: Rated for both AC and DC applications, reducing the variety of parts needed in a warehouse or on a bill of materials. Type C Trip Characteristic: Excellent for circuits with moderate inrush currents, such as small motors, lighting, and control transformers, preventing nuisance tripping. Enhanced Safety: Features “Finger-safe” terminals (IP20) and a trip-free mechanism, ensuring the breaker trips even if the handle is held in the “ON” position. Fast Installation: The dual-terminal design allows for the use of bus bars or individual wires, and the DIN rail clip enables easy “snap-on” mounting and removal. Precautions (Important Notes) Correct Sizing: Ensure the 5A rating matches the continuous load of the circuit (standard practice is the 80% rule for continuous loads). Polarity for DC: While rated for DC, check the wiring diagrams if using in multi-pole DC configurations to ensure correct voltage distribution across poles. Environmental Derating: If installing in high-temperature environments ($> 40°C$), consult the derating tables, as the thermal trip threshold may shift. Terminal Torque: Always tighten terminals to the manufacturer’s specified torque ($2.8 N\cdot m$ / 25 lb-in) to prevent overheating and localized electrical arcing. Product Applications (Typical Use Cases) Industrial Control Panels: Protecting PLC I/O cards, sensors, and solenoid valves. Commercial HVAC: Circuit protection for fans, dampers, and small heaters. Power Supplies: Serving as the primary or secondary disconnect and protection for 24V DC power supply units. Lighting Circuits: Managing standard industrial lighting loads where moderate surge currents occur during startup. Communication Equipment: Protecting routers, switches, and industrial gateways in server racks or field boxes. Shipping Port: Xiamen, China Payment: Bank of Chicago, Bank of Singapore Express cooperation: fedex, DHL, UPS and your express account Service: Professional Sales provides 24 hours /7 days online service Please make an inquiry for more models： AB 1756-0B16E AB 1756-DMD30 AB 1756-IB32 AB 1756-0F4 AB 1756-DNB AB 1756-IB32/A AB 1756-0X8I AB 1756-DNB/A AB 1756-IF16 AB 1756-A10 AB 1756-DNB/A/B AB 1756-IF16/A AB 1756-A13 AB 1756-DNB/B AB 1756-IF161 AB 1756-A17 AB 1756-DNB/C1756-DNB/D AB 1756-IF16H AB 1756-A4 AB 1756-DNB/D AB 1756-IF4FXOF2F AB 1756-A7 AB 1756-DNB1 AB 1756-IF6CIS AB 1756-BA11 AB 1756-EN2T AB 1756-IF6I AB 1756-BA2 AB 1756-EN2T/C AB 1756-IF8 AB 1756-CFM AB 1756-EN2T/D AB 1756-IF8H AB 1756-CN2 AB 1756-EN2TR AB 1756-IF8U AB 1756-CN2/B AB 1756-EN2TR/B AB 1756-IG16 AB 1756-CN21 AB 1756-EN3TR AB 1756-IH16I AB 1756-CN2R AB 1756-ENBT AB 1756-IM16I AB 1756-CN2R/B AB 1756-ENBT/A AB 1756-IM16I1203-CN1 AB 1756-CNB AB 1756-ENET AB 1756-IN16 AB 1756-CNB/A/B/C/D AB 1756-EWEB AB 1756-IR6I AB 1756-CNB/D AB 1756-HSC AB 1756-IRT8I AB 1756-CNB/E AB 1756-HSC1 AB 1756-IT6I AB 1756-CNBR AB 1756-HYD02 AB 1756-IT6I2 AB 1756-CNBR/A/D AB 1756-IA16/A AB 1756-IV16 AB 1756-CNBR/D AB 1756-IA32 AB 1756-IV32 AB 1756-CNBR/E AB 1756-IB16 AB 1756-L1M1 AB 1756-CPR2 AB 1756-IB16/A AB 1756-L35E AB 1756-DHRIO AB 1756-IB16D AB 1756-L55M12 AB 1756-DHRIO/C AB 1756-IB16I AB 1756L55M13 AB 1756-DHRIO/D AB 1756-IB16ISOE AB 1756-L55M13 AB 1756-DHRIO/E AB 1756-IB16SOE AB 1756-L55M14 AB 1756L55M22 AB 1756-L55M16 AB 1756L55M16 AB 1756-L55M23 AB 1756L55M23 AB 1756-L55M22
