The Littelfuse LST Varistor Series is constructed with a built-in thermal disconnecting function and electric arc shield that help ensure safe operation during extreme circumstances of varistor end-of-life or abnormal overvoltage conditions. It is specifically designed as a Type 1 Component Assembly Surge Protective Device (SPD) and is suitable for Type 1 and Type 2 SPDs.
Littelfuse LST Series SPD Thermally Protected Varistors
Features
- Short Circuit Current Rating (SCCR) of 200 kA and Nominal Discharge Current Rating (In) of 20 kA
- Available in both Maximum Discharge Current (Imax) ratings of 50 kA and 75 kA.
- Mechanically triggered AC and DC rated micro-switch with Normally Open or Normally Closed options for remote indication and/or monitoring circuit
- Visual tab option to display LST working status
- RoHS compliant, Lead-free, and Halogen-free
- UL Recognized to UL 1449 and CSA C22.2 No. 269.4 as a Type 1 Component Assembly (Type 1CA)
Applications
- Type 1 and Type 2 Surge Protective Devices (SPDs)