1-
6
MDP Digital Time Overcurrent Relay GE Power Management
1 INTRODUCTION GEK-100682D
1
1.5 TECHNICAL SPECIFICATIONS
ELECTRICAL RATINGS
Nominal frequency: 25/50/60 Hz
Nominal current: 1 or 5 A
Auxiliary Power Supply: 24 to 48 V DC, 48 to 125 V DC / 38.5 to 150 V AC, 110 to 250 V DC, 85 to 240 V AC
BURDEN RATINGS
OVERCURRENT RATINGS
Continuous: 2 x In
Three Second: 50 x In
One Second: 100 x In
CT RATINGS
1 A 34500
5 A 87500
1 A special 13600 (models MDPx6 have a sensitive ground CT)
ENVIRONMENTAL RATINGS
Temperature: Operating: –20°C to +65°C (–40°C available upon request)
Storage: –40°C to +65°C
Relative Humidity: Up to 95% without condensing
ACCURACY
Operating Value: 5%
Operating Time: 5% or 0.025 seconds, whichever is greater
REPEATABILITY
Operating Value: 1%
Operating Time: 2% or 0.025 seconds, whichever is greater
DIGITAL INPUT
Voltage Range: 38.5 to 250 V AC, 24 to 250 V DC
Frequency Range: 40 to 70 Hz
OUTPUT AND TRIP CONTACTS
Closing: Contact will close and conduct up to a maximum of 30 A for tripping duty at control voltages up to
300 V DC. The output contact is also rated for Capacitive trip devices.
Interrupting: 50 W resistive with a maximum of 2 A and 300 V DC
Continuous: 5 A, with 300 V DC maximum
Frequency range: 25 to 70 Hz (note: the MDP responds to RMS values of harmonics to 600 Hz)
GROUND
CT
MDP
MODEL
1
1. Refers to the MDP*
X
model, see Section 1.2: ORDER CODES on page 1–2
PHASE
INPUT
BURDEN
POWER SUPPLY
AC/DC
50 Hz AC 60 Hz AC
1 A
6 0.05 to 0.4375 A
< 3 W at all voltages,
quiescent
< 4.5 W at maximum
voltages
4 0.1 to 0.875 A 0.09 Ω ∠2.4° 0.09 Ω ∠2.8°
5 0.3 to 2.625 A
5 A
3 0.1 to 0.875 A
1, 7 0.5 to 4.375 0.01 Ω ∠9.7° 0.01 Ω ∠11.5°
2 1.5 to 13.125 A
Courtesy of NationalSwitchgear.com
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