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350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 1: INTRODUCTION
FORM-A VOLTAGE MONITOR
Applicable voltage:............................................. 20 to 250 VDC
Trickle current: ..................................................... 1 to 2.5 mA
FORM-C RELAYS
Configuration: ...................................................... 5 (five) electromechanical
Contact material:................................................ silver-alloy
Operate time:........................................................ <8 ms
Continuous current:........................................... 10 A
Make and carry for 0.2s: ................................. 30 A per ANSI C37.90
Break (DC inductive, L/R=40 ms):................. 24 V / 1 A
48 V / 0.5 A
125 V / 0.3 A
250 V / 0.2 A
Break (DC resistive): ........................................... 24 V / 10 A
48 V / 6 A
125 V / 0.5 A
250 V / 0.3 A
Break (AC inductive):.......................................... 720 VA @ 240 VAC Pilot duty A300
Break (AC resistive):............................................ 250 VAC / 10 A
Ratings per UL Certification:
Break (AC resistive):............................................ 250 VAC / 10 A GEN USE
Continuous Current: .......................................... 10 A
TRIP / CLOSE SEAL-IN
Relay 1 trip seal-in:............................................ 0.00 to 9.99 s in steps of 0.01
Relay 2 close seal-in: ........................................ 0.00 to 9.99 s in steps of 0.01
Power supply
HIGH RANGE POWER SUPPLY
Nominal:..................................................................120 to 240 VAC
125 to 250 VDC
Range:......................................................................60 to 300 VAC (50 and 60 Hz)
84 to 250 VDC
Ride-through time: .............................................35 ms
LOW RANGE POWER SUPPLY
Nominal:..................................................................24 to 48 VDC
Range:......................................................................20 to 60 VDC
ALL RANGES
Voltage withstand: .............................................2 × highest nominal voltage for 10 ms
Power consumption:.........................................15 W nominal, 20 W maximum
20 VA nominal, 40 VA maximum
Fuse rating:............................................................5A fuse; time lag, slow blow, 350V 4.5 O.D. X 14.5mm