Instruction manual

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