MTL Instruments MTLTP48-1 Surge Protection Transmitter mounting Non-certified SPD - 20mm ISO thread TP Series, 2-Wire + earth, 35V nominal Voltage, 20kA Max discharge current

Features:
• The TP48 range of surge protection devices uniquely provide a level of protection for 2, 3 and 4 wire field-mounted transmitters that is far in excess of the optional transient protection facilities available from the transmitter manufacturers - without involving any additional wiring, conduit modifications or other expensive extras.
• The TP48 range protection network consists of high-power, solid state electronics and a gas-filled discharge tube capable of diverting 20kA impulses.
• The whole unit is encased in a 316 stainless steel housing, threaded for the common conduit entries used on process transmitters.Versions are available for 1/2” NPT, 20mm ISO, and G1/2” (BSP 1/2 inch) threaded entries
• Easy and direct mounting - screws into spare conduit entry
• Parallel connection avoids introduction of any resistance into loop
• Protects 2, 3 and 4 wire transmitters