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Siemens MMSKWN1 - Class CC Fuse 600V 1A (Time-Delay)

Siemens
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The Siemens MMSKWN1 is a compact industrial control fuse designed for overcurrent protection in motor circuits and control power transformers. This 1.25 lb fuse is rated for 600V AC and carries a current rating of 1A, providing reliable short-circuit interruption in branch circuits. Its physical construction features a ferrule-style terminal connection with a 1.5-inch overall length and 0.41-inch diameter, housed in a melamine tube with nickel-plated brass end caps for durability. The fuse complies with UL Class CC standards (UL 248-4) and CSA C22.2 No. 248.4, ensuring safe operation in North American industrial environments. Typical applications include protection of motor starters, contactor coils, solenoid valves, and small transformer primaries in manufacturing, HVAC, and process control systems.

Key Features & Specifications
  • Type: Class CC, time-delay, ferrule-style, melamine tube with nickel-plated brass end caps
  • Voltage Rating: 600V AC
  • Current Rating: 1A
  • Dimensions: 1.5" length x 0.41" diameter
  • Standards: UL 248-4, CSA C22.2 No. 248.4
  • Applications: Motor circuit protection, control transformer protection, solenoid and contactor coil protection
  • Switch Type: N/A (fuse only)
  • Configuration: Single element, time-delay
  • Coil Voltage Maximum: N/A
  • Temp Rating: -40°C to 125°C
  • Shipping Dimensions: 1.5" x 0.41" x 0.41"
  • Phase: Single
  • Voltage: 600V
  • Amperage: 1A
  • AIC rating: 200,000A RMS Sym.
  • Connection: Ferrule
  • Poles: 1
  • Protection: Overcurrent
  • Functions: Short-circuit and overload protection
  • Frame Size: Class CC
  • Trip Type: Time-delay
  • Panel Type: N/A
  • Breaker Type: N/A (fuse)
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Nickel-plated brass
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: CC
  • Insulation Temperature: 125°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: CC
  • Diameter: 0.41"
  • Velocity: N/A
  • Clip Center: 1.5"
  • Clas: CC
  • Mounting: Clip or holder
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 1A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: N/A
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: N/A
  • Terminal Connection: Ferrule
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single
  • Standards: UL 248-4, CSA C22.2 No. 248.4
  • Compatible Frames: Class CC fuse holders
  • Installation Type: Clip or holder
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 1A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 125°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 75455426174
  • GTIN: 00754554261744