IDMTL OVERCURRENT RELAY RSH 207 Series - munhean.com

IDMTL OVERCURRENT RELAYRSH 207 SeriesMade In Japan

KASUGA IDMTL TYPE RSH207 Overcurrent Relay is designed to protect equipment such astransformers, generators, motors and power distribution systems. This relay is simple to operateand test. At the same time it is extremely accurate, has a long service life and features reducedtemperate error. The distinctive feature of 10 ideal current settings incorporated in the relaypractically eliminates the need to use non-standard C.T. This relay comply with BS 142 and alsoIEC 255 in parts.LayoutRed LED (trip: R)Red LED (trip: S)Red LED (trip: T)Instantaneous adjust(multiplier)Orange LED(Instantaneous: on)Red LED(Inverse time multipliers: 3/10)Red LED(Inverse time multipliers: 1.3/10)Test buttonKnob (current setting)Green LED (power supply)Digital SW(Inverse time setting)Trip & Reset buttonSPECIFICATIONS1. Type IDMTL2. Model RSH2073. Supply voltage AC 110/240V 50/60Hz ±15%Other voltage upon request4. Current setting 2.5, 3.0, 3.6, 3.75, 4.0, 4.375, 4.5, 5.0, 6.0, 7.55. Time multiplier 0.03 ~ 1.00 (Inverse time)3/10 0.09 ~ 3 sec. (at 10 times of setting current)1.3/10 0.039 ~ 1.3 sec. (at 10 times of setting current)6. High-Set (Instantaneous protection) 2 - 10 times setting (see graph)7. Pick up current 105% of setting8. Reset current value not less than 95% of current setting

9. Contact output2C, AC 250V, 5A (cosø=1)10. LED Indication• Auxiliary Supply – Green• Phase Overcurrent – Red• Time multiplier – Red• Instantaneous On – Orange11. LifeElectrical and mechanical more than10,000 operations12. EnclosureStandard DIN caseDIN 96 x 96 x 98mmProtection structureIP50 (dust protection)MaterialABS resin complying with UL94V0WeightRelay approx. 460gC.T. convertor approx. 1300gCharacteristics1. Ambient temperature -10 ~ +50°C2. Ambient humidity 45 ~ 85%RH3. Voltage accuracy ± 3%4. Repeat accuracy ± 3%5. Time multiplier accuracy ± 2% or ± 30ms whichever is the greater6. Temperature accuracy less than 5% at -5°C/+40°C7. Insulation resistance >1000MΩ8. Withstand overcurrent 20 times for 5 sec.9. Power consumption Approx. 4VA10. C.T. input consumption Approx. IVA (at 7A)11. Voltage withstand2kV for 1 minute between all case terminals connected together and the case earth terminal.2kV for 1 minute between independent circuit including contact circuits.Environmental Withstand1. Impulse test5kV peak, 1.2/50µs (0.5J) between all terminals and case, earth and between adjacent terminal.2. TemperatureIEC 68-2-1/68-2-2Storage and transit -25°C to +70°C3. HumidityIEC 68-2-356 days @93%RH and +40°C4. VibrationIEC 255-21-10.5G between 10Hz and 150Hz5. Electromagnetic waveNon-operation for radio frequency at 130-180 MHz and 400-500MHz and 900-l000MHz (by Walkie-talkie of 5W)

IDMTL Overcurrent Relay RSH 20796DIMENSIONS (mm) for RSH 20711 80 13.59092 ± 0.598 max92 ± 0.5Scale Characteristics1.3/10 InverseMultiplies of Current X2 X3 X5Time Multiplier (TM)Standard Operating Time0.10 0.28 0.22 0.170.11 0.30 0.23 0.180.12 0.33 0.25 0.200.13 0.36 0.27 0.220.14 0.40 0.30 0.240.15 0.43 0.32 0.250.16 0.46 0.34 0.270.17 0.49 0.36 0.290.18 0.53 0.39 0.310.19 0.56 0.41 0.320.20 0.60 0.44 0.35Scale Characteristics3/10 InverseMultiplies of Current X2 X3 X5Time Multiplier (TM)Standard Operating Time0.03 0.32 0.20 0.130.04 0.39 0.25 0.170.05 0.46 0.29 0.210.06 0.54 0.35 0.250.07 0.62 0.41 0.290.08 0.69 0.47 0.330.09 0.77 0.52 0.370.10 0.85 0.57 0.41For other setting range, please refer to chart on back page

IDMTL Overcurrent Relay RSH 207Connection diagram for RSH207RSTNk3 l3 k2 l2 k1 l1 cm A1b c a Ta1 Ta2 240 110 0TERMINAL OPEN SHORTA1 – CM X 3 X 1.3Connection diagram for RSH207 with earth faultRSTNRASP 18NB1 38 42 57 6k3 l3 k2 l2 k1 l1 cm A1b c a Ta1 Ta2 240 110 0TERMINAL OPEN SHORTA1 – CM X 3 X 1.3

IDMTL Overcurrent Relay RSH207IDMT characteristic as per IEC 255-4 and BS 142TIME CURRENT CHARACTERISTICTIME CURRENT CHARACTERISTIC1001001.3/10 Inverse3/10 Inverse1010t=1.00OPERATING TIME (sec)1t=1.00t=0.70t=0.50t=0.40OPERATING TIME (sec)1t=0.70t=0.50t=0.40t=0.30t=0.20t=0.30t=0.20t=0.100.1t=0.100.1t=0.05t=0.03t=0.05t=0.03inst.inst.0.011 10 100MULTIPLES OF SETTING CURRENT0.011 10 100MULTIPLES OF SETTING CURRENTExclusive Agent:KASUGA ELECTRIC WORKS LTD3-11 Shimorenjaku 8-ChomeMitaka, Tokyo 181-8518, JapanTel: 0422-47-5881Fax: 0422-44-627751 Kim Keat Road, Unit 05-02Mun Hean Industrial Building, Singapore 328821Tel: (65) 6250 0522 Fax: (65) 6253 6885/(65) 6253 5879E-mail: munheansing@munhean.com.sgWebsite: http://www.munheansingapore.com