MMDH LIGHTNING SURGE PROTECTOR FOR STANDARD SIGNAL LINE USE

Detail

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

MMDH

Lightning Surge Protectors for
Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR
STANDARD SIGNAL LINE USE
(high speed/high discharge current capacity)

Functions & Features
• Designed specifically for 4 – 20 mA DC line including both 4-wire and 2-wire transmitters
• Discharge current capacity 20000 A
• Absorbing surges only without affecting instrumentation signal
Typical Applications
• High discharge current capacity is beneficial for use in area with frequent lightnings
 

MODEL: MMDH–24

ORDERING INFORMATION
• Code number: MMDH-24

OPERATIONAL VOLTAGE
24: 24 V DC

RELATED PRODUCTS
•Lightning arrester for power supply use (model: MMAH)

GENERAL SPECIFICATIONS
Construction: Wall-mounted, front terminals; terminal cover provided
Connection: M4 screw terminals (torque 0.8 N·m)
Screw terminal: Nickel-plated steel
Housing material: Steel plate t = 1.6 (black)

INSTALLATION
Operating temperature: -5 to +55°C (23 to 131°F)
Operating humidity: 30 to 90 %RH (non-condensing)
Mounting: Surface
Weight: 440 g (0.97 lbs)

PERFORMANCE
Discharge voltage (peak voltage)
 Line to line: ±40 V min.
 Line to ground: ±290 V min.
Maximum surge voltage
  Line to line: ±50V max.
  Line to ground: ±800 V max.
(The maximum voltage that could pass through this surge protector. Protected equipment must be able to withstand this voltage for very short time period.)
Response time: 4 nsec.
Leakage current
  Line to line: ≤ 5 μA at ±30 V DC
  Line to ground: ≤ 5 μA at ±140 V DC
Discharge current capacity: 20000 A (8 / 20 μsec.)
Maximum load current: 0.1 A
Internal series resistance: ≤ 0.4 Ω (including return)
Maximum line voltage: ±30 V

CONNECTION EXAMPLES

GROUNDING

DIMENSIONS unit: mm (inch)

MOUNTING REQUIREMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY

M-System Co., Ltd.