P&B MPR3E5 - Output Contact Ratings; System Data

17/12/97 Page 31 Issue H
10.6 Output contact ratings
Number of relays = 3
Contacts = 2 change over contacts for trip signal.
1 change over contact for alarm & programmable.
Maximum breaking capacity
250V AC / 1500VA / continuous current 6A
for DC voltage:
ohmic L/R = 4ms L/R = 7ms
300 V DC 0.3 A / 90 W 0.2 A / 63 W 0.18 A / 54 W
250 V DC 0.4 A / 100 W 0.3 A / 70 W 0.15 A / 40 W
110 V DC 0.5 A / 55 W 0.4 A / 40 W 0.2 A / 22 W
60 V DC 0.7 A / 42 W 0.5 A / 30 W 0.3 A / 17 W
24 V DC 6 A / 144 W 4.2 A / 100 W 2.5 A / 60 W
Max. rated making current: 64A(IEC65)
mechanical life span: 3 × 10
6
operating cycles
electrical life span: 2 × 10
5
operating cycles at 220 V AC / 6A
Contact material Silver Cadmium Oxide (AgCdO)
10.7 System data
Design standard = IEC 255-4, BS 142
Operating temperature range = -20°C to 70°C
Storage temperature range = -40°C to 85°C
Relative humidity = 93% @ 40°C for 56 days
Test Voltages to EN50081-1, EN50082-2
Isolation Test = 2.5kV / 50Hz / 1 min.
Impulse Test = 5kV, 1.2 / 50mS, 0.5J
High frequency interference Test= 2.5kV / 1MHz
Burst transient Test = 4kV / 2.5KHz, 15mS
ESD Test = 8kV
RFI Suppression Test = 10V/m, 27 - 500MHz, 1 Octave/ 3 min.
EMI Suppression Test = 10V/m
Mechanical Tests:
Shock = IEC 41B (CO) 38, Class 1
Vibration = IEC 41B (CO) 35, Class 1
Degree of Protection = Front - IP52
Rear - IP00
Weight = Approx. 2kg.