KATHREIN Loop-Through Socket 3-Way DC Pass-Through ESD 33 (211500013)

The KATHREIN ESD 33 is a three-way loop-through socket that passes DC power to the SAT output, allowing remote-powered satellite equipment to be connected without an additional power inserter. Its 10 dB tap loss on all three outputs balances signal levels across TV, radio and satellite, while the 1.5 dB through loss keeps the loop signal strong for downstream outlets.

Highlights

• Three outputs: TV (IEC male), Radio (IEC female), SAT (F-connector)
• DC pass-through on SAT output for remote powering
• Wide frequency coverage: 5–862 MHz for TV/Radio, 950–2200 MHz for SAT
• High shielding effectiveness: >85 dB per EN 50083-2
• Low through loss: 1.5 dB on all bands

In daily use

Install the ESD 33 in a standard flush-mounted box. Connect the incoming cable to the loop input F-connector, then run the loop output to the next socket. The three outputs provide simultaneous TV, radio and satellite signals. The DC pass-through on the SAT output powers devices like LNBs or multiswitches, simplifying installations where a separate power supply would otherwise be needed.

Full specifications

• Product type: Loop-through socket
• Number of outputs: 3 (TV, Radio, SAT)
• Frequency range TV/Radio: 5–862 MHz
• Frequency range SAT: 950–2200 MHz
• Tap loss TV/Radio: 10.0 dB
• Tap loss SAT: 10.0 dB
• Through loss TV/Radio: 1.5 dB
• Through loss SAT: 1.5 dB
• DC pass-through: Yes (SAT output)
• Impedance: 75 Ohm
• Shielding effectiveness: >85 dB (EN 50083-2)
• TV output connector: IEC male
• Radio output connector: IEC female
• SAT output connector: F-connector
• Loop input/output connector: F-connector
• Decoupling loss TV-Radio: >20 dB
• Decoupling loss TV-SAT: >20 dB
• Decoupling loss Radio-SAT: >20 dB

Final note

The ESD 33 is a reliable choice for distributing satellite and terrestrial signals in residential installations, especially where DC pass-through is required.