The Littelfuse Thermally Protected Varistors Series TMOV34S represent a new development in circuit protection. It consists of a 33mm square MOV which offers high surge capability (40kA) together with an integrated thermally activated element designed to open in the event of overheating. The Varistor has a third indicator lead which may be used to indicate that the MOV has been disconnected from the circuit. This third lead facilitates connection to monitoring circuitry. The Littelfuse Thermally Protected Varistors Series TMOV34S provide quick thermal response due to the proximity of the thermal element to the MOV body. The integrated configuration also offers lower inductance for improved clamping performance to fast over voltage transients.

• US patent for thermally protected MOV- Patent # 6636403
• Designed to facilitate compliance to UL 1449 for TVSS production
• High peak current rating to 40 kA
• -55 C to +85 C operating temp
• Agency recognition: UL
• Alternative design available with narrow 3mm wide monitor (right) lead
• Alternative design available with 2 leads only (no monitor lead)
• RoHS Compliant and Lead-free Available
  

• TVSS Products
• AC Panel Protection Modules
• AC Line Power Supplies
• AC Power Meters
• UPS (Uninterruptable Power Supply)
• Inverters
• AC/DC Power Supplies
• DIN Rail