Mechanics hold latching relay with safety lock

Oswell JBD Series Latching Relay is a very reliable big current switching unit with its patent design. It consists of a single phase switch (K), double coils(KA1,KA2) and mechanical locking device. K has 2 status, Kon and Koff. Instantaneous pulse will drive the K switching between Kon and Koff.
In operation, giving an instantaneous driving pulse to coil KA2, the main switch K will be locked to be Kon status very closely. If giving an instantaneous driving pulse to coil KA1, the relay will be unlocked quickly and the main switch K will be on Koff status.
Whether the contactor keep its status at the Kon or Koff, it doesn’t need any current to serve. so it doesn’t consume power energy.

1) Small size, capable of switching big current
2) Small contact resistance, lower voltage drop and low temperature increasing
3) Mechanical lock device can prevent from lightning strike and wrong operation
4) Double coil design make the control circuit very easy and simple
5) Resistant to out magnet and noise
6) Free from vibration and shock

Specifications	Model JBD-60 /JBD-80/JBD-100
Max switching voltage	250AVC
Max switching current	60A/80A/100A
Driving pulse Voltage (VDD)	24V
Driving Pulse width	>60mS
Rise time	<20ms
KA1 coils resistance	39Ω/30Ω/59Ω
KA2 coils resistance	29Ω/30Ω/53Ω
Contact point type	1D
Contact point material	AgCdO
Contact resistance	0.001Ω(at 1A)
Contact voltage drop	<80mV
Dielectric strength of coil-contact	>4000VAC
Dielectric strength of open contact	>2000VAC
Insulation resistance	>1000MΩ
Shock	free from shock
Heat increasing	<55ºC (test at 20ºC)
Electrical Life (with load)	10000 times
Mechanical Life (no load)	100000 times
Ambient temperature	-30ºC~ +70ºC
Storage temperature	-40ºC~ +80ºC
humidity	98% at +40ºC
Connection to PCB	Pin connector / flying wire
Connection to terminals	Flexible copper cable connector
Structure	Sealed and dustproof cover

Working driving pulse voltage VDD is 18V-30V, but normally driving pulse voltage the higher the better.
Working driving pulse width is 60-150ms. When driving pulse voltage is high, driving pulse width could be a low value.
Kon and Koff switching will ask for an instantaneous power, super capacitor should be able to supply the needed driving current to the relay.
The switching transistor in driving circuit should meet the relay’s voltage and current demand, its rise time should be small as possible.
With above analysis, we suggest:
VDD=24V, Pulse width 80ms-120ms, Super capacitor: 680-1000uf/35-50V
Switching transistor: S8050, S8550, β≥200 Voltage＞40V Ic>1000mA