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Control Concepts LPAL21 - Surge Protective Device 277/480V 100kA

Control Concepts
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Control Concepts LPAL21 is a surge protective device designed to safeguard industrial electrical systems from transient overvoltages and voltage spikes. This unit is rated for a maximum continuous operating voltage of 277/480V AC and a nominal discharge current of 20kA per mode, with a maximum surge current capacity of 100kA per phase. Constructed with a compact, modular enclosure measuring 5.19 lb in weight, it features a robust metal housing and thermal protection for reliable operation in harsh environments. The device complies with UL 1449 4th Edition standards for surge suppression and is suitable for use in panelboards, switchboards, and motor control centers. Typical applications include protection for manufacturing equipment, HVAC systems, and data centers in commercial and industrial facilities.

Key Features & Specifications
  • Type: Surge Protective Device (SPD), Metal Oxide Varistor (MOV) based
  • Voltage Rating: 277/480V AC
  • Current Rating: 20kA nominal discharge current (In), 100kA maximum surge current (Imax)
  • Dimensions: Compact modular enclosure (weight: 5.19 lb)
  • Standards: UL 1449 4th Edition, ANSI/IEEE C62.41.1
  • Applications: Industrial panelboards, switchboards, motor control centers, manufacturing equipment, HVAC systems, data centers
  • Switch Type: N/A (SPD, no mechanical switch)
  • Configuration: 3-phase, 4-wire (Wye or Delta)
  • Coil Voltage Maximum: N/A
  • Temp Rating: -40°C to 85°C operating
  • Shipping Dimensions: N/A
  • Phase: 3-phase
  • Voltage: 277/480V AC
  • Amperage: N/A
  • AIC rating: N/A
  • Connection: Hardwired, terminal block
  • Poles: 3-pole
  • Protection: Surge suppression, thermal protection
  • Functions: Transient voltage surge suppression (TVSS)
  • Frame Size: N/A
  • Trip Type: N/A
  • Panel Type: N/A
  • Breaker Type: N/A
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Steel enclosure
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Panel mount
  • Hz: 50/60 Hz
  • 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: NEMA 4X (optional)
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: 14 AWG to 2 AWG
  • Amperage Maximum: N/A
  • Amperage Minimum: N/A
  • Nema Rating: NEMA 4X (optional)
  • Switch Style: N/A
  • Wire Size: 14 AWG to 2 AWG
  • Certification: UL 1449 4th Edition, cUL
  • Circuit Breaker Mounting Style: N/A
  • Terminal Connection: Screw terminal
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase, 4-wire
  • Standards: UL 1449, ANSI/IEEE C62.41.1
  • Compatible Frames: N/A
  • Installation Type: Hardwired
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: N/A
  • Current Rating: 20kA nominal, 100kA maximum
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: 100kA per phase
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 85°C
  • Max Clamp Voltage: 1200V (L-N)
  • On-State Current: N/A


Product Identification
  • UPC: N/A
  • GTIN: N/A