1–8 MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 1: INTRODUCTION
PHASE CURRENT INPUTS
Range:...................................................................... 2.5 to 7.5 A (1.5 × CT)
Input type:..............................................................5 A
Frequency: ............................................................. 50 or 60 Hz
Accuracy:................................................................±2.0% of Full Scale, where Full Scale = 1.5 × CT Primary
Withstand (at 5A nominal):.............................0.2 s at 100×
1.0 s at 50×
2.0 s at 40×
continuous at 3× rated current
PHASE VOLTAGE INPUTS (THREE-PHASE VOLTAGE)
Input range:...........................................................120 to 600 V (nominal)
Nominal frequency:...........................................50 or 60 Hz
Accuracy:................................................................±2% of reading, or ±1 V, whichever is greater
NOTE:
Phase current Input Type of 1 A is not supported.
Outputs specifications
FORM-C RELAY
Contact material:................................................ silver-alloy
Operate time:........................................................10 ms
Maximum contact load: ..................................10 mA at 5 V DC
Maximum switching rate:...............................300 operations per minute (no load), 30 operations per
minute (load)
Mechanical life:....................................................10 000 000 operations
Continuous current:...........................................10 A
Make and carry for 0.2s:..................................30 A per ANSI C37.90
FORM-C OUTPUT RELAY BREAK CAPACITY
AC resistive, 120 V AC: ......................................10 A normally-open, 5 A normally-closed
AC resistive, 240 V AC: ......................................10 A normally-open, 8 A normally-closed
AC inductive, PF = 0.4 pilot duty:..................2.5 A
DC resistive, 30 V DC:........................................ 10 A
SOLID STATE OUTPUT RELAY
Operate time:........................................................< 1 ms
Nominal voltage:.................................................24 V DC
Maximum current:..............................................0.5 A
Power supply specifications
POWER SUPPLY
Nominal:..................................................................120 to 240 V AC
125 to 250 V DC
Range:...................................................................... 60 to 300 V AC (50 and 60 Hz)
84 to 250 V DC
Ride-Through:.......................................................35 ms
ALL RANGES
Voltage withstand:.............................................2 × highest nominal voltage for 10 ms
Power consumption: .........................................16 W typical, 25 W maximum
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