ES-8126 Rev.7

MD-TL

Lightning Surge Protectors for
Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR
FOR TELECOMMUNICATION LINE USE

Functions & Features
• Designed specifically to protect telecommunication equipment from lightning surges entering through telecommunication line network
• Easy connection with protected equipment with modular jacks
• Connection with a telephone and a modem in
parallel

MODEL: MD–TL

ORDERING INFORMATION

• Code number: MD-TL

GENERAL SPECIFICATIONS

Construction: Plug-in
Connection:
Line: Modular jack
Grounding: M3.5 screw terminals (torque 0.8 N·m)
Modular jack cord: 6-pole, 2-core
Screw terminal: Nickel-plated steel
Housing material: Flame-resistant resin (black)

INSTALLATION

Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface or DIN rail; Standard Rack Mounting Frame BX-16H available
Weight: 150 g (0.33 lb)

PERFORMANCE

Discharge voltage (peak voltage)
Line to line: ±270 V min.
Line to ground: ±350 V max.
Maximum surge voltage
Line to line: ±650 V max.
Line to ground: ±900 V max.
(The maximum voltage that could pass through M-RESTER. Protected equipment must be able to withstand this voltage for very short time period.)
Response time: ≤ 0.1 μsec.
Leakage current:
Line to line: ≤ 100 μA @ ±160 V DC
Line to ground: ≤ 100 μA @ ±160 V DC
Discharge current capacity: 1000 A (8 / 20 μsec.)
(Modular jack contact welding is out of the scope of this protection. (The surge protector still works even when welding.))
Maximum load current: 500 mA
Internal series resistance: Approx. 0.1 Ω including return

GROUNDING

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm [inch]

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM