GE 469 Instruction Manual page 41

Specifications
Inputs
GE Multilin
Specifications
Specifications are subject to change without notice.
ANALOG CURRENT INPUTS
Inputs: 0 to 1 mA, 0 to 20mA, or 4 to
20 mA (setpoint)
Input impedance: 226 Ω ±10%
Conversion range: 0 to 21 mA
Accuracy: ±1% of full scale
Type: passive
Analog in supply: +24 V DC at 100 mA max.
Response time: ≤100 ms
DIFFERENTIAL CURRENT INPUTS
CT primary: 1 to 5000A
CT secondary: 1 A or 5 A (setpoint)
Burden: <0.2 VA at rated load
Conversion range: 0.02 to 1 × CT primary
Nominal frequency: 20 to 70 Hz
Frequency range: 20 to 120 Hz
Accuracy: ±0.5% of 1 × CT for 5 A
±0.5% of 5 × CT for 1 A
CT withstand: 1 second at 80 × rated current,
2 seconds at 40 × rated cur-
rent, continuous at 3 × rated
current
DIGITAL INPUTS
Inputs: 9 opto-isolated inputs
External switch: dry contact < 400 Ω, or
open collector NPN transistor
from sensor; 6 mA sinking
from internal 4 KΩ pull-up at
24 V DC with Vce < 4 V DC
See Digital Inputs on page 2–7 for additional
specifications.
GROUND CURRENT INPUTS
CT primary: 1 to 5000 A
CT secondary: 1 A or 5 A (setpoint)
Burden: <0.2 VA at rated load for 1 A
or 5 A; <0.25 VA for 50:0.025
CTs at 25 A
Conversion range: 0.02 to 1 × CT primary
Nominal frequency: 20 to 70 Hz
Frequency range: 20 to 120 Hz
Accuracy: ±0.5% of 1 × CT for 5 A CTs
±0.5% of 5 × CT for 1 A CTs
±0.125 A for 50:0.025 CTs
CT (1 A/5 A) withstand:
1 second at 80 × rated current,
2 seconds at 40 × rated cur-
rent, continuous at 3 × rated
current
CT (50:0.025) withstand:
continuous at 150 mA
http://www.GEindustrial.com/multilin
Motor Management Relay
PHASE CURRENT INPUTS
CT primary: 1 to 5000 A
CT secondary: 1 A or 5 A (specify with order)
Burden: Less than 0.2 VA at rated load
Conversion range: 0.05 to 20 × CT
Nominal frequency: 20 to 70 Hz
Frequency range: 20 to 120 Hz
Accuracy: at < 2 × CT: ±0.5% of 2 × CT
at ≥ 2 × CT: ±1% of 20 × CT
CT withstand: 1 second at 80 × rated current,
2 seconds at 40 × rated cur-
rent, continuous at 3 × rated
current
RTD INPUTS
3 wire RTD Types: 100 Ω Platinum
(DIN.43760), 100 Ω Nickel,
120 Ω Nickel, 10 Ω Copper
RTD sensing current: 5 mA
Isolation: 36 Vpk (isolated with analog
inputs and outputs)
Range: –50 to +250°C
Accuracy: ±2°C
Lead resistance: 25 Ω Max per lead for Pt
and Ni type; 3 Ω Max per lead
for Cu type
No sensor: >1000 Ω
Short/low alarm: <–50°C
TRIP COIL SUPERVISION
Applicable voltage: 20 to 300 V DC / V AC
Trickle current: 2 to 5 mA
VOLTAGE INPUTS
VT ratio: 1.00 to 300.00:1 in steps of
0.01
VT secondary: 273 V AC (full-scale)
Conversion range: 0.05 to 1.00 × full scale
Nominal frequency: 20 to 70 Hz
Frequency range: 20 to 120 Hz
Accuracy: ±0.5% of full scale
Max. continuous: 280 V AC
Burden: >500 kΩ
Sensor supply: +24 V DC at 20 mA max.
469
2–5