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

MDP-24-1

Lightning Surge Protectors for
Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR
STANDARD SIGNAL LINE & PULSE USE

Functions & Features
• Designed specifically for 4 – 20mA DC and
pulse signal line including both 4-wire and 2-wire transmitters
• Absorbs surges only without affecting instrumentation signal
• No interruption of signal by unplugging surge protector element
Application Examples
• Protects two-wire transmission lines
• Protects electronic instruments’ I/O
 

MODEL: MDP–24–1[1]

ORDERING INFORMATION
• Code number: MDP-24-1[1]
 Specify a code from below for [1].
(e.g. MDP-24-1/A33/CE/Q)
• Specify the specification for option code /Q
(e.g. /C01)

[1] OPTIONS (multiple selections)
DIN Rail Mounting Adapter
blank: Without
/A33: With adapter (model A-33)
Standards & Approvals (must be specified)
/N: Without CE or UL
/CE: CE marking
/UL: UL approval, CE marking
Other Options
blank: none
/Q: Option other than the above (specify the specification)

SPECIFICATIONS OF OPTION: Q
COATING (For the detail, refer to M-System's web site.)
/C01: Silicone coating
/C02: Polyurethane coating
/C03: Rubber coating (UL not available)

GENERAL SPECIFICATIONS
Construction: Plug-in
Connection: M4 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: Surface or DIN rail
Weight:
120 g (0.26 lb), standard
145 g (0.32 lb), with DIN rail mounting adapter

PERFORMANCE
Max. continuous operating voltage (Uc): 
 Line to line: 30 V   
 Line to earth: ±140 V
Voltage protection level (Up):
• @ 1 kV (100 A)
 Line to line: 40 V  
 Line to earth:  ±650 V
• @ 2 kV (1 kA) 
 Line to line: 45 V 
 Line to earth: ±800 V
Response time:
 Line to line: ≤ 4 nsec.
 Line to earth: ≤ 20 nsec.
Leakage current:
 Line to line: ≤ 5 μA @ 30 V DC
 Line to earth: ≤ 5 μA @ ±140 V DC
Max. discharge current (Imax): 5000 A (8 / 20 μs)
Nominal current (IN): 100 mA
Internal series resistance: 20 Ω ±10 % (including return)
Capacitance @ 1 MHz:
 Line to line:  ≤ 1000 pF
 Line to earth: ≤ 100 pF
Surge protection: IEC 61643-21 Categories C1, C2, D1

STANDARDS & APPROVALS
EU conformity:
EMC Directive 
  EMI EN 61000-6-4
  EMS EN 61000-6-2
RoHS Directive
  EN 50581
Approval:
Protectors for Data Communications and Fire
Alarm Circuits (UL 497B)

CONNECTION EXAMPLES

GROUNDING

EXTERNAL DIMENSIONS & TERMINAL ASSIGNMENTS unit: mm (inch)

MOUNTING REQUIREMENTS unit: mm (inch)

SCHEMATIC CIRCUITRY & CONNECTION DIAGRAM

M-System Co., Ltd.