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B Series

MODEL:B1DS
Function
Star to Delta changeover timer with star time & transfer timer settable.
Rated supply Voltage
440V AC.
Operating Voltage Range
-20% to +10% of rated voltage.
Rated Frequency
50Hz ± 5%
Power consumption
AC approx.20VA / 4 W
Control Output
Rated for 5A @ 250VAC/28VDC resistive load
Time range
STAR TIME : 0.6sec to 60 Sec
TRANSFER TIME : 40mSec/100mSec settable
Range Selection
6Sec,60Sec/transfer time 40m Sec,100mSec
#Setting accuracy
±10%max. w.r.t full scale ±100mSec
#Repeat accuracy
±1%max ±100mSec
Recovery Time
150m Sec minimum
variation due to voltage change
±2% max.±100m Sec
variation due to temperature change
±5% max.±100m Sec.
Variation due to frequency change
±2% max ±100m Sec.
Ambient temperature
Operation    :  -100 C to +550 C.
Storage    :   -250 C to+800 C.
Humidity
MAX 85% RH @ 400 C
Service life(under no load)
106 operations minimum
Electrical life(under full load)
105 operations minimum.
Rated frequency of Operation
1800±5% operations per hour max.
Electrical Connection
Screw type terminals with self lifiting clamps
Insulation Resistance
>100M ohms @ 500V DC.
Dielectric Strength
01) 2.5 KV AC, 50HZ for 1 minute.(Between current carrying & non carrying parts).
02) 1.5KX AC, 50HZ for 1 minute. ( Between contacts & Control circuit)
03) 750V AC, 50 Hz for 1minute ( Between non-continuous contacts of the relay)
Dimension
45X75X116mm(WXHXD)
Enclosure(Series)
B1D series
# Applicable only for star time.
Issue Date :29/9/07