·Some details are not shown. Please refer to specification sheets for all information.

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 lbs)

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

M-System Co., Ltd.