GE 239

1-8 239 Motor Protection Relay GE Multilin
1 OVERVIEW 1 OVERVIEW
1
RTDs (OPTIONAL)
INPUTS: 3 RTDs, stator/bearing prog.
TYPE: 100 Pt (DIN 43760), 100 Ni, 120
Ni, 10 Cu programmable
RANGE: –40 to 200 °C/ –40 to 400 °F
TRIP/ALM RANGE: 0 to 200 °C / 0 to 400 °F
DEAD BAND: 2 °C / 4 °F
ACCURACY: ±2 °C / ±4 °F
LEAD RESISTANCE:
Pt or Ni RTD: 25 Ω max
Cu RTD: 3 Ω max
3 wire lead resistance compensation
COMMUNICATIONS
TYPE: RS485 2 wire, half duplex, isolated
BAUD RATE: 1200 to 19.2k bps
PROTOCOL: Modbus
®
RTU
FUNCTIONS: Read/write setpoints, read actual
values, execute commands
ANALOG OUTPUT (OPTIONAL)
ACCURACY: ±2% of full scale reading
ISOLATION: 36 V DC isolated, active source
OUTPUT RELAYS
CONFIGURATION: FORM C NO/NC
CONTACT MATERIAL: SILVER ALLOY
CT INPUTS
50:0.025 GROUND INPUT WITHSTAND:
CONTINUOUS: 150 mA
MAXIMUM: 12 A for 3 cycles
50:0.025 input can be driven by a 50:0.025 CT.
SWITCH INPUTS
TYPE: dry contacts
OUTPUT: 29 V DC, 10 mA (pulsed)
DURATION: 100 ms minimum
CONTROL POWER
INPUT: 90 to 300 VDC or
70 to 265 VAC, 50/60 Hz
POWER: 10 VA (nominal) 20 VA (max)
HOLDUP: non-failsafe trip: 200 ms
failsafe trip: 100 ms
both times at 120VAC / 125VDC
It is recommended that all 239 relays be
powered up at least once per year to avoid
deterioration of electrolytic capacitors in
the power supply.
PROGRAMMABLE
OUTPUT 0-1 mA 0-20 mA 4-20 mA
MAX LOAD 2400 Ω 600 Ω 600 Ω
MAX OUTPUT 1.1 mA 21 mA 21 mA
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RESISTIVE 30 VDC 10 30 10
125 VDC 10 30 0.5
250 VDC 10 30 0.3
INDUCTIVE
(L/R=7 ms)
30 VDC 10 30 5
125 VDC 10 30 0.25
250 VDC 10 30 0.15
RESISTIVE 120 VAC 10 30 10
250 VAC 10 30 10
INDUCTIVE
PF=0.4
120 VAC 10 30 10
250 VAC 10 30 10
CT INPUT
(A)
BURDEN
VA Ω
PHASE CT
(1A)
1 0.009 0.01
5 0.2 0.01
20 3.5 0.01
PHASE CT
(5A)
5 0.04 0.002
25 0.9 0.002
100 16 0.002
GROUND
CT (5A)
5 0.04 0.002
25 1.1 0.002
100 17 0.002
GROUND
CT
(50:0.025)
0.025 0.07 116
0.1 1.19 119
0.5 30.5 122
BURDEN
1s xCT 5s xCT continuous
xCT
PHASE CT
(1A)
100 40 3
PHASE CT
(5A)
100 40 3
GROUND
CT (5A)
100 40 3
NOTE