Siemens KTH300 - Thermal Overload Relay 600V 300A
Siemens KTH300 - Thermal Overload Relay 600V 300A

Siemens KTH300 - Thermal Overload Relay 600V 300A

Siemens
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Siemens KTH300 is a thermal overload relay designed for motor protection in industrial applications. It operates at a maximum voltage of 600V AC and supports current ratings from 0.1 to 300A, with a compact frame size and Class 10 trip protection. The relay features a three-pole configuration with manual or automatic reset, and is constructed with a durable metal enclosure for harsh environments. It complies with UL, CSA, and IEC standards, ensuring reliable performance in motor control centers and panel boards. Typical applications include conveyor systems, pumps, and compressors requiring precise overload protection.

Key Features & Specifications
  • Type: Thermal overload relay, Class 10 trip, manual/auto reset
  • Voltage Rating: 600V AC
  • Current Rating: 0.1-300A
  • Dimensions: 5.19 lb weight
  • Standards: UL, CSA, IEC
  • Applications: Motor protection for conveyors, pumps, compressors
  • Switch Type: Thermal bimetallic
  • Configuration: Three-pole
  • Coil Voltage Maximum: 600V AC
  • Temp Rating: -20°C to 60°C
  • Shipping Dimensions: Not specified
  • Phase: Three-phase
  • Voltage: 600V AC
  • Amperage: 0.1-300A
  • AIC rating: Not specified
  • Connection: Screw terminals
  • Poles: 3
  • Protection: Overload
  • Functions: Motor protection
  • Frame Size: Compact
  • Trip Type: Class 10
  • Panel Type: Open or enclosed
  • Breaker Type: Not applicable
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Steel
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: 10
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Panel or DIN rail
  • Hz: 50/60
  • Coil Material: Copper
  • Horse Power: Up to 150 HP at 600V
  • Aux Contacts: 1 NO + 1 NC
  • CPT: Not specified
  • Full Load Amps: 0.1-300A
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: 300A
  • Full Load Amp Minimum: 0.1A
  • Enclosure: Open or NEMA 1/12
  • Relay Style: Thermal
  • Coil Voltage Minimum: Not specified
  • Wire: Copper or aluminum
  • Amperage Maximum: 300A
  • Amperage Minimum: 0.1A
  • Nema Rating: 1, 12
  • Switch Style: Not specified
  • Wire Size: 14 AWG to 4/0 AWG
  • Certification: UL, CSA, IEC
  • Circuit Breaker Mounting Style: Not applicable
  • Terminal Connection: Screw
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Three-phase
  • Standards: UL 508, CSA C22.2, IEC 60947
  • Compatible Frames: Siemens motor starters
  • Installation Type: Panel or DIN rail
  • Item QTY: 1
  • Nema Starter Size: 0-5
  • Breaker Frame: Not applicable
  • Current Rating: 0.1-300A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: 60°C
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 075455402432
  • GTIN: 00754554024325