ES-8130 Rev.6

MMD

Lightning Surge Protectors for
Electronics Equipment M-RESTER

LIGHTNING SURGE PROTECTOR FOR
STANDARD SIGNAL LINE USE

(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 10000 A
• Absorbing surges only without affecting instrumentation signal
Typical Applications
• High discharge current capacity is beneficial for use in area with frequent lightnings

MODEL: MMD–24

ORDERING INFORMATION

• Code number: MMD-24

OPERATIONAL VOLTAGE

24: 24 V DC

RELATED PRODUCTS

•Lightning arrester for power supply use (model: MMA)

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 lb)

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: 0.01 μsec.
Leakage current
Line to line: ≤ 5 μA at ±30 V DC
Line to ground: ≤ 5 μA at ±140 V DC
Discharge current capacity: 10000 A (8/ 20 μsec.)
Maximum load current: 0.1 A
Internal series resistance: ≤ 0.4 Ω (including return)
Maximum line voltage: ±30 V