
TLT Series
Telephony Lines Surge Protection Device
The TLT Series is a Secondary Transient Voltage Surge Suppression for Telephony line protocols. Units provide protection against Transient Voltages that exceed the nominal operating voltage of Dial-Up, Dedicated/Leased and T1 Lines.
Each line is protected against surge current impulses up to 1.9kA/wire. The TLT Series installs in series with the telephone lines to be protected, diverting harmful transient energies to ground while maintaining close clamping thresholds above normal service voltages. Units can be configured for all standard telephony applications by varying circuit components and/or densities.
The SG housing for the TLT Series is designed for indoor and outdoor installations. All other housings are for indoor use only.
Solid state fail-safe design
Low shunt capacitance to reduce signal loss
Performance tested to verify compliance

3D Preview
Load Current | Max Surge Current (8/20) Iₘₐₓ | Short-Circuit Current Rating (SCCR) | Repetative Impulse Rating (Iₙ) | On/Off Status⬥ | Housing Rating | Product Weight | Product Dimensions | Most Current Industry Standards | Surge Technology | Connector Form/ Type | Connector Method | Interface | Operating Temperature | Operating Frequency | Fusing | Listings & Certifications | Enclosure | Max. Operating Voltage | Max. Clamp Voltage | Energy Rating/ Wire | Response Time | Warranty | Series Resistance | Peak Pulse Power | Line - Load Sensitive | Breakover Voltage: (Line - Ground) | Attenuation Margin | NEXT | Data Transfer Rate | Power Sum NEXT | Return Loss | ACR | Power Sum ACR | ARC -F | PSACRF | Mounting | Relative Humidity | Terminals | Max. Circuits Protected | Modes of Protection | Continuous Current | Follow Current | Wire Range | Feedback | Remote Alarm Contacts | Remote Alarm contact capability (Nominal Volts/ Nominal Amps) | Remote Alarm Wire Size | Included Accessories |
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20 A | NEMA 1, 3R | SIDACTOR | RJ45/11/14 | Hardwired, Plug-in | -40 ℉ to +185 ℉
(-40 ℃ to + 85 ℃) | <40 °C | Listed to ANSI/UL 497B, ANSI/UL 94 V-2 | Indoor (SA & SB) Outdoor (SG) | 56 - 190 Volts | Between 110 and 270 volts | < 1 Nanosecond | 10 Year Limited Product Warranty | < 1 Ohm | 16 mbps | DIN Kits | 95% noncondensing | 5 Pairs (10 Wires) | T-R, T-G, R-G | DIN Clip Kit |
Specifications
Specification | Value |
---|---|
Repetative Impulse Rating (Iₙ) | 20 A |
Housing Rating | NEMA 1, 3R |
Surge Technology | SIDACTOR |
Connector Form/ Type | RJ45/11/14 |
Connector Method | Hardwired, Plug-in |
Operating Temperature | -40 ℉ to +185 ℉
(-40 ℃ to + 85 ℃) |
Operating Frequency | <40 °C |
Listings & Certifications | Listed to ANSI/UL 497B, ANSI/UL 94 V-2 |
Enclosure | Indoor (SA & SB) Outdoor (SG) |
Max. Operating Voltage | 56 - 190 Volts |
Max. Clamp Voltage | Between 110 and 270 volts |
Response Time | < 1 Nanosecond |
Warranty | 10 Year Limited Product Warranty |
Series Resistance | < 1 Ohm |
Data Transfer Rate | 16 mbps |
Mounting | DIN Kits |
Relative Humidity | 95% noncondensing |
Max. Circuits Protected | 5 Pairs (10 Wires) |
Modes of Protection | T-R, T-G, R-G |
Included Accessories | DIN Clip Kit |
Diagrams
Not To Scale
Electrical Ratings
Click on any TLT Series model from the table to request a quote
Model Number | Service Voltage | VPR | Application |
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TLT/SA-XX0-UDUL-ZZ | 240V | 270V | Dial-up Line |
TLT/SA-XX0-ULDL-ZZ | 80V | 110V | Leased Line |
TLT/SA-XX0-UTIL-ZZ | 190V | 220V | E1/T1 |
TLT/SB-XX0-UDUL-ZZ | 240V | 270V | Dial-up Line |
TLT/SB-XX0-ULDL-ZZ | 80V | 110V | Leased Line |
TLT/SB-XX0-UTIL-ZZ | 190V | 220V | E1/T1 |
TLT/SG-XX0-UDUL-ZZ | 240V | 270V | Dial-up Line |
TLT/SG-XX0-ULDL-ZZ | 80V | 110V | Leased Line |
TLT/SG-XX0-UTIL-ZZ | 190V | 220V | E1/T1 |
ETL Listed to UL497A Standard. (Secondary protection for Telephone Lines)
Replace XX with number of wires to be protected: 02 = 2 wires, 04 = 4 wires, 06 = 6 wires, 08 = 8 wires, 10 = 10 wires.
Replace ZZ with: RJ for Modular Jacks (female to female) - TS for Terminal Strip Screw
Modular Jacks: only 8 wires for case A & B. Case G only 6 wire.
Compatibility Table
EDR Model Number | PVA50-1P-xxxv-S | PVA50-2P-xxxv-S | PVA50-3P-xxxy-S | PVA50-5P-xxxy-S | DRA50-1Pxxx-S | DRA50-2Pxxx-LGN | DRA50-2Pxxx-S | DRA50-3Pxxx-S | DRA50-3PSxxx-S | DRA50-4Pxxx-S | CLT-xxx | SLT CAT X/X-POE | SLT/XM-02- | SLT/XM-04- | SLT/XM-06- | SLT/XM-10- | TST010/XXX | TST020/(120-250v) | TST020/(24-48v) | TST040/XXX |
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