MODEL: MDR-8

http://www.m-system.co.jp/

MDR-8 SPECIFICATIONS

ES-8131 Rev.9 Page 1/3

Lightning Surge Protectors for

Electronics Equipment M-RESTER

MULTI M-RESTER

Functions & Features

• Designed specifically for ON-OFF signals, protecting

semiconductor switches used for ON-OFF outputs from the

computer or PLC from lightning surge damage that enters

on the wiring between these instruments

• 8 channels

• Most convenient as junction board

• Minimum mounting space

SURGE

SIDE

S1

S2

S3

S4

S5

S6

S7

S8

COM

GND

PROTECT

SIDE

P1

P2

P3

P4

P5

P6

P7

P8

COM

GND

40 (1.57)

160 (6.30)

mm (inch)

95 (3.74)

MODEL: MDR–8

ORDERING INFORMATION

• Code number: MDR-8

GENERAL SPECIFICATIONS

Construction: terminal board; terminal cover provided

Connection: M3 screw terminals (torque 0.5 N·m)

Screw terminal: Nickel-plated brass

Housing material: Steel plate t = 1.2 (black)

INSTALLATION

Operating temperature: -5 to +55°C (23 to 131°F)

Operating humidity: 30 to 90 %RH (non-condensing)

Mounting: Surface

Weight: 510 g (1.12 lbs)

PERFORMANCE

Discharge voltage (peak voltage)

Between each of S1–S8 lines: ±30 V min.

Each line – COM: 30 V min.

Each line or COM – G: ±60 V min.

Maximum surge voltage

Between each of S1–S8 lines: ±40 V max.

Each line – COM: 40 V max.

Each line or COM – G: ±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

Between each of S1–S8 lines: ≤ 5 μA at ±30 V DC

Each line – COM: ≤ 5 μA at 30 V DC

Each line or COM – G: ≤ 5 μA at ±60 V DC

Max. discharge current (Imax): 1000 A (8/ 20 μsec.)

Max. load current: 100 mA

Internal series resistance: Approx. 100Ω