ES-8136 Rev.4
MDK-LC
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR
STRAIN GAUGE USE
Functions & Features
• Designed to protect strain gauge transmitters from lightning surge damage that enters on the wiring between the strain gauge and the transmitter
• Absorbing surges only without affecting instrumentation signal
• Shallow depth
• DIN rail mounting
MODEL: MDK–LC
ORDERING INFORMATION
• Code number: MDK-LC
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
Maximum line voltage
Output side: ±0.3 V
Excitation side: 15 V
Discharge voltage (peak voltage)
Output side
: ±0.3 V min.
Excitation side
: 15 V min.
Line to ground
: ±15 V min.
Maximum surge voltage
Output side
: ±15V max.
Excitation side
: 30V max.
Line to ground
: ±30V 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
: ≤ 5 nsec.
Leakage current
:
Output side: ≤ 0.2 μA @ ±0.3 V DC
Excitation side: ≤ 2 μA @ 15 V DC
Line to ground: ≤ 2 μA @ ±15 V DC
Discharge current capacity
Output side: 100 A (8 / 20 μsec.)
Excitation side: 50 A (8 / 20 μsec.)
Line to ground: 50 A (8 / 20 μsec.)
Internal series resistance
: ≤ 0.1 Ω
CONNECTION EXAMPLES
GROUNDING
DIMENSIONS unit: mm (inch)
TERMINAL ASSIGNMENTS
SCHEMATIC CIRCUITRY