SATEC EM720 Installation Manual - Manual (Page 28)

Appendix: Technical Specifications
24
Power Supply
3P power supply
(MPS)
Power Supply Inputs from measured AC Voltage inputs
207-480V AC 50/60 Hz High range power supply (480V option) 96- 575V AC
100-120 V AC 50/60 Hz Low range power supply (120V option) 45 - 250 V AC
Burden as per IEC 62053-61 multi-function meter
requirements
3 W and <15VA/phase
Battery backup
Power Supply (BPS)
Build-in rechargeable NiMh battery, Redundant
MPS 2.5 hours backup
AUX. Power Supply
(APS) Low DC Power Supply, Redundant MPS
DC PS module -
Optional
DC input 24V DC ± 15%
Power Consumption 6W maximum
Dielectric insulation withstand 4 KVAC @ 1mn
Terminals for wires size 2 x 4 mm 2
Real Time Clock
Battery backup
According to IEC 61038
Field replaceable Lithium battery > 3 consecutive years
More than 10 years service
battery life
Input/Output ports
Digital Input Dry contact - Optically isolated 4 inputs
Wetting (internally) input contact 24 VDC internal power
supply
(5mA wetting current per
contact)
Open contact impedance > 1MΩ
Close contact impedance < 100Ω
Sampling rate cycle 1ms
Dielectric insulation withstand 4 KVAC @ 1mn
Basic
Terminals for wires size 8 x 2.5 mm 2
Digital Input Dry contact - Optically isolated 2 inputs
Wetting (internally) input contact
24 VDC internal power
supply
(5mA wetting current per
contact)
Open contact impedance > 1MΩ
Close contact impedance < 100Ω
Sampling rate cycle ½ cycle (50/60 Hz)
Dielectric insulation withstand 4 KVAC @ 1mn
2DI/2DO module -
Optional
Terminals for wires size 4 x 2.5 mm 2
Solid State outputs SSR FORM C 2 relays
Maximum switching voltage 250VAC/VDC
Make and carry capacity 0.12A max
Maximum operate time 1 ms
Maximum release time 1 ms
Dielectric insulation withstand 4 KVAC @ 1mn
2DI/2DO module -
Optional
Terminals for wires size 6 x 2.5 mm 2
Relay outputs Electromechanic FORM C 2 relays
Maximum switching voltage 250VAC/110VDC
Make and carry capacity 10A max
Maximum operate time 7 ms
Maximum release time 5 ms
Dielectric insulation withstand 4 KVAC @ 1mn
2DI/2DO module -
Optional
Terminals for wires size 6 x 2.5 mm 2