Name: Herald Corporation
Address: 1, Chandni Chawk Street, Kolkata, 700072, IN
Telephone: 9830059416
Price range: RS

Product Features:

Din sized enclosure for Track (Din rail) / Screw mounting.
B1DCA-T : HOLD / RESTART facility during power fail conditions.
B1DCA-T : Auto / Manual switch for mode of operation
B1DCA-T : Program – enable / disable facility for tamper proof operation.
B1DCA-X, B1DCA-T : Independently selectable ON & OFF time.
SPP-T :Trips under phase missing, phase reversal or phase unbalance
In manual mode, terminals provided to connect to switch so as to manually switch ON and switch OFF load

Model	B1DCA-X	B1DCA-T	B1DS
Function	Cyclic with On-Off time independently adjustable	Cyclic with On-Off time independently adjustable	Star-Delta changeover timer with star time & transfer time settable
Rated supply voltage	24V AC to 240V AC 24V DC to 220V DC	240V AC	440V AC
Operating voltage range	-10% to +10% of rated voltage	-15% to +10% of rated voltage	-20% to +10% of rated voltage
Allowable ripple (for DC supply only)	3% Max	N.A
Rated frequency	50Hz ± 5%
Control relay output	2 c/o rated for 5A @ 250V AC / 28V DC resistive load		Rated for 5A @ 250V AC / 28V DC resistive load
Power consumption	AC approx. 5VA / 1W, DC approx. 2W	AC approx. 15VA /3W	AC approx. 20VA / 4W
Time range	0.6Sec – 60Min	0.1Sec – 10Hrs	Start time: 0.6Sec – 60Sec Transfer Time : 40mSec / 100mSec Settable
Range selection	6S, 18S, 36S, 60S, 3M, 6M, 30M, 60M	1S, 10S, 1M, 10M, 1H, 10H	6Sec,60Sec / transfer time 40msec,100msec
Setting accuracy	± 10% max. w.r.t full scale ± 100mSec
Repeat accuracy	±1% max. ±100mSec	± 1% max. ± 100mSec
Recovery time	100mSec minimum	500mSec minimum	150mSec minimum
Minimum energisation time	N.A	N.A
Temperature co-efficient	N.A	N.A
Variation due to voltage change	± 2% max.± 100mSec
Variation due to temperature change	± 5% max.± 100mSec
Variation due to frequency change	± 2% max.± 100mSec
Ambient temperature	Operation: -10ºC to +55ºC, Storage: -25ºC to +80ºC
Humidity	MAX 85% RH@40ºC
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 maximum
Insulation resistance	> 100M ohms@500V DC
Dielectric strength	1. 2.5KV AC, 50Hz for 1minute.(Between current carrying & non current carrying parts.) 2. 1.5KV AC, 50Hz for 1minute. (Between contacts & control circuit.) 3. 1KV AC, 50Hz for 1minute. (Between non-continuous contacts of the relay.)		1. 2.5KV AC, 50Hz for 1minute.(Between current carrying & non current carrying parts.) 2. 1.5KV AC, 50Hz for 1minute.(Between contacts & control circuit.) 3. 750V AC,50Hz for 1minute.(Between non-continuous relay contacts.)
Electrical connection	Screw type terminals with self lifting clamps
Dimension	45 x 75 x 116mm (W x H x D)
Enclosure (series)	B1D series

Connections:

Dimensions:

Timing Diagram:

Hints on correct use:

Change the positions of respective range selector switches of the timer & rotate the respective pot to get desired ON & OFF time setting with the flat blade screw driver.

Caution:

Do not change the time range & set time while the timer is in operation.
Switch off the power while changing the time range & set time
Application of voltage other than the specified one, will permanently damage the timer.
Use 2.5mm² U-type lugs with sleeve for connections and wiring.
NOTE : User should not apply external voltage to the terminals that are designated as potential free(Zero/No Volt).