Specifications
INSTALLATION
2-46
EASY-START ES SPECIFICATIONS:
Current Ratings:
Isolated Sink
Non-Isolated Sink
Suitable for NEMA-12
Suitable for NEMA-1
45 Amps
180 Amps
70
260
120
560
250
750
500
950
AC Supply Voltage:
Three voltage combinations for each current rating:
208/230/460
+10% - 15%
50/60 Hz 3-PH
380/415
+10% - 15%
50/60 Hz 3-PH
460/500/575
+10% - 15%
50/60 Hz 3-PH
Output Stage:
6-SCRÕs....Full-Wave In-Line Control
Type of Loads:
Induction Motor; 3-Wire
Ambient Temperature:
Operating range: -20¡ to +40¡C
Ambient Temp Derating:
Output rating decreases by 5% for each 5¡ rise in ambient
above 40¡, to a maximum of 50¡C.
Power Semiconductors:
Starter Voltage Rating:
Current Rating:
45-260 Amp
360-950 Amp
208/230/460 Vac
1200 V
1500 V
380/415 Vac
1200 V
1500 V
460/500/575 Vac
1500 V
1500 V
Transient Voltage
Integral MOV (Metal Oxide Varistor) protects SCR
Suppression:
against most short term voltage spikes.
RC Snubber:
RC snubber networks prevent false firing of SCRÕs due to
DV/DT characteristics.
Digital Gate Firing:
A digital SCR firing trigger provides excellent 3-phase voltage
balance between phases.
Electronic Fuse:
Instantaneous overcurrent trip circuit will trip out the starter in
less than one-cycle with 900% current.
Inverse-Time Current
Overload trip, 3-phase sensing. Operational during
Trip:
start and run. Run-trip adjustable 100-120% see Figure 3-1.
Overload Capacity:
Continuous: 120%
30 Seconds: 350%
20 Seconds: 500%
Easy-Start ES Instruction Manual
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