ES-8135 Rev.4
MDK-LV
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR SIGNAL
LINE WITH EXITATION USE
Functions & Features
• Designed specifically for level sensors, pressure sensors and their converters/transmitters
• Excitation up to 30 V DC
• Voltage signals up to 10 V DC
• Absorbing surges only without affecting instrumentation signal
• Shallow depth
• DIN rail mounting
MODEL: MDK-LV
ORDERING INFORMATION
• Code number: MDK-LV
GENERAL SPECIFICATIONS
Construction
: Discrete box, front terminals; terminal cover provided
Connection
: M3.5 screw terminals (torque 0.8 N·m)
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
: DIN rail
Weight
: 150 g (0.33 lb)
PERFORMANCE
Discharge voltage (peak voltage)
Excitation side
: 30 V min.
Signal side
: 10 V min.
Line to ground
: ±290 V min.
Maximum surge voltage
Excitation side
: 40 V max.
Signal side
: 20 V max.
Line to ground
: ±650 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
Excitation side
: ≤ 10 μA at 30 V DC
Signal side
: ≤ 10 μA at 10 V DC
Line to ground
: ≤ 10 μA at ±290 V DC
Discharge current capacity
: 5000 A (8 / 20 μsec.)
Max. load current
: 100 mA
Internal series resistance
: 10Ω ±5 %
Maximum line voltage
Excitation side
: 30 V
Signal side
: 10 V
CONNECTION EXAMPLES
GROUNDING
DIMENSIONS unit: mm (inch)
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY