ES-8108 Rev.9
MD-DNM
Lightning Surge Protectors for
Electronics Equipment M-RESTER
LIGHTNING SURGE PROTECTOR FOR DeviceNet
(Load capacity 8 A)
Functions & Features
•Designed specifically to protect devices connected to DeviceNet from lightning surges
MODEL: MD–DNM
ORDERING INFORMATION
• Code number: MD-DNM
GENERAL SPECIFICATIONS
Construction
: Stand-alone
Connection
: Euro type connector terminal
Applicable wire size
: 0.2 to 2.5 mm
2
, stripped length 10 mm
Housing material
: Flame-resistant resin (black)
Alarm indicator
: Surge absorber failure indicator turns white when the fuse is blown.
Alarm relay contact
: Turns on in an abnormality of surge absorber element (when the safety fuse is blown).
Rating
: 30 V DC @ 0.5 A (resistive load)
Max. switching voltage
: 125 V AC/DC
Max. switching power
: 25 VA
Min. load
: 5 V DC @ 1 mA
ODVA approval
: Not approved (No relevant product category exists for surge protectors.)
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
: 400 g (0.88 lb)
Number of modules
: Max. 4 modules per network
PERFORMANCE
Discharge voltage (peak voltage)
•
Signal line
Line to line: ±5 V min.
Line to ground: ±280 V min.
•
Power line
Line to line: 26 V min.
Line to ground: ±280 V min.
•
Drain
Line to ground: ±280 V min.
Maximum surge voltage
(The maximum voltage that could pass through M-RESTER. Protected equipment must be able to withstand this voltage for very short time period.)
•
Signal line
Line to line: ±18 V max.
Line to ground: ±800 V max.
•
Power line
Line to line: 120 V min.
Line to ground: ±650 V max.
•
Drain
Line to ground
: ±800 V max.
Response time
: ≤ 0.1 μsec.
Leakage current
•
Signal line
: ≤ 0.3 mA at ±5 V DC
•
Power line
: ≤ 0.3 mA at 26 V DC
•
Line to ground
: ≤ 20 μA at ±280 V DC
Discharge current capacity
: 1500 A
Maximum load current
•
Signal line
: 100 mA
•
Power line
: 8 A
Internal series resistance
•
Signal line
: 2 Ω × 2
•
Power line
: ≤ 0.2 Ω
Maximum line voltage
•
Signal line
: ±5 V
•
Power line
: 26 V
Capacitance
•
Signal line
: Approx. 25 pF @ 100 kHz
•
Line to ground
: Approx. 25 pF @ 100 kHz
CONNECTION EXAMPLES
DIMENSIONS unit: mm (inch)
SCHEMATIC CIRCUITRY