Kasuga Digital IDMTL Type RSN200 Earth Fault and Overcurrent Relay is designed to protect electrical equipment and networks against overcurrent and ground fault. The relay comply to BS 142 and IEC 255. Some useful features of the relay : • User friendly • Compact in size • Earth Fault can be configured to be either IDMTL or DTL • Earth Fault and Overcurrent setting is selectable to either 1.3/10 or 3/10 curve • Wider ranges setting in smaller steps
• Recall past % phase trip from memory store in the relay • Fully microprocessor controlled relay • Built in surge arrester to absorb overvoltage/transient • Mechanical trip reset button to guard against automatic reset before fault is identified • High set setting available • Auto and manual scrolling of reading display selectable
Layout Display of %A (100%=/5A) indicator O/C & E/F indicator
Display of Setting indicator
Scroll mode indicator Test Button Display and Setting Selection Keys
Trip/Reset Button
SPECIFICATIONS 1. Model
RSN200
2. Supply Voltage
AC230V ± 15% 50/60Hz (other voltages are available)
3. Current Setting Overcurrent:
20- 120% (1% step), 120-200%(5% step)
Earth Fault: 4. Time Setting Range Overcurrent IDMTL:
2-50% (1% step) 0.09-3.0 sec at 10 times of setting current (3/10) 0.039-1.3 sec at 10 times of setting current (1.3/10)
Earth Fault IDMTL:
0.09-3.0 sec at 10 times of setting current (3/10) 0.039-1.3 sec at 10 times of setting current (1.3/10)
DTL:
0.1-2.0 sec (0.1 sec step)
5. High-set (Instantaneous protection)
2.0-10.0 times of setting current
6. Pick-up current
100~105% of setting current
7. Reset Current Value
(Setting Value of pick-up current) - 10%
8. Tripping Relay
Mechanical hold type Relay Contact : 1c 250VAC, 5A (cos ø=1)
9. LED indication
Real time 3-digit display of individual phase Current with auto/manual scroll Digital display for setting parameters Trip current indication for individual phase R = Red colour, S = Yellow colour, T = Blue colour, E/F = Green colour Scroll = Red colour Auxilliary power supply = Green LED % (A) = Red colour, Check = Red colour
10. Life
Electrical and Mechanical more than 10,000 operation
11. Enclosure Standard DIN case: Protection structure : Material: Weight:
DIN 96 x 96 x 108mm, (Panel cutout 91±0.8 x 91±0.8 mm) IP 30 ABS resin complying with UL94VO Relay: Approx. 500g
Characteristics 1. 2. 3. 4. 5.
6. 7. 8. 9. 10.
Ambient temperature Ambient humidity Voltage accuracy Repeat accuracy Time multiplier accuracy
