LST Series Varistor - Littelfuse

Product Highlights > SPD UL1449 Thermally Protected Varistor – LST Series

            SPD UL1449 Thermally Protected Varistor – LST Series
                    Littelfuse's TMOV has a built-in thermal disconnecting function and an electrical arc shield
    

Littelfuse's renowned thermally protected varistor technology (TMOV) has a built-in thermal disconnecting function and an electrical arc shield that prevents catastrophic failure and fire hazard if the varistor has been exposed to extreme circumstances related to varistor end of life (EOL) or abnormal overvoltage conditions. The LST series has been specifically designed to meet UL1449 Type 1 or Type 2 Surge Protective Device (SPD) safety standards. The clear EOL indication will help the technician/engineer replace the part that needs to be changed out so that their equipment can continue to be protected.

Typical Circuit Diagram

Features

200 kA SCCR, 20 kA I_n, UL1449 Type 4 recognized component assembly
Same footprint and PCB layout for I_max 50 kA and 75 kA options
Mechanically triggered AC and DC rated micro-switch for remote indication/monitoring: normally open or closed options
Visual tab options to display LST working status
RoHS compliant, lead-free, and halogen-free

Benefits

Facilitate meeting UL1449 listed Type 1 or Type 2 standards
Same PCB layout/design for 50 kA and 75 kA I_max rated SPDs
Flexible options for designing an isolated remote indication circuit
Clear indication for technician/engineer to replace EOL product to continue surge protection for the end product
Environment friendly

Resources

Metal-Oxide Varistor (MOV) Products

SPD UL1449 Thermally Protected Varistor – LST Series

Manufacturer Part Number	Beskrivelse	Strøm - Kortslutningsklassificering (SCRR)	Funktioner	Tilgængeligt antal	Pris	Vis detaljer
LST1505VL2NT1	SPD TYP 1/TYP 2/TYP4 150VAC MCOV	200 kA	Termisk beskyttet	104 - Immediate	$128.16	Vis detaljer
LST2757VL2NT1	SPD TYP 1/TYP 2/TYP4 275VAC MCOV	200 kA	Termisk beskyttet	73 - Immediate	$157.90	Vis detaljer
LST5507VL2NT1	SPD TYP 1/TYP 2/TYP4 550VAC MCOV	200 kA	Termisk beskyttet	72 - Immediate	$164.54	Vis detaljer
LST2755VL2NT1	SPD TYP 1/TYP 2/TYP4 275VAC MCOV	200 kA	Termisk beskyttet	770 - Immediate	$131.77	Vis detaljer
LST3207VL2NT1	SPD TYP 1/TYP 2/TYP4 320VAC MCOV	200 kA	Termisk beskyttet	62 - Immediate	$157.90	Vis detaljer
LST1507VL2NT1	SPD TYP 1/TYP 2/TYP4 150VAC MCOV	200 kA	Termisk beskyttet	107 - Immediate	$145.51	Vis detaljer
LST3205VL2NT1	SPD TYP 1/TYP 2/TYP4 320VAC MCOV	200 kA	Termisk beskyttet	642 - Immediate	$139.51	Vis detaljer
LST5505VL2NT1	SPD TYP 1/TYP 2/TYP4 550VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$155.38	Vis detaljer
LST1805VL2NT1	SPD TYP 1/TYP 2/TYP4 180VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$84.79	Vis detaljer
LST1807VL2NT1	SPD TYP 1/TYP 2/TYP4 180VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$97.38	Vis detaljer
LST3855VL2NT1	SPD TYP 1/TYP 2/TYP4 385VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$98.38	Vis detaljer
LST3857VL2NT1	SPD TYP 1/TYP 2/TYP4 385VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$111.34	Vis detaljer
LST4205VL2NT1	SPD TYP 1/TYP 2/TYP4 420VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$98.38	Vis detaljer
LST4207VL2NT1	SPD TYP 1/TYP 2/TYP4 420VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$111.34	Vis detaljer
LST5105VL2NT1	SPD TYP 1/TYP 2/TYP4 510VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$104.63	Vis detaljer
LST5107VL2NT1	SPD TYP 1/TYP 2/TYP4 510VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$111.34	Vis detaljer
LST6905VL2NT1	SPD TYP 1/TYP 2/TYP4 690VAC MCOV	200 kA	Termisk beskyttet	0 - Immediate	$104.63	Vis detaljer