深圳市敏五科技有限公司

E-1048-8C. CUBIC version

Power supply LINE +

T*e DC power supply with *all Ri

battery and generator etc.

Voltage ratings UN DC 12 V / DC 24 V

Operating voltage US: DC 9...32 V

Load circuit LOAD

Load output Power MOSFET, high side switching

Max. current rating IN 25 A

T*es of loads resistive, inductive, capacitive, lamp

loads, motors (depending on duration

of inrush current)

Current rating range IN 1 A...20 A (fixed ratings)

up to 85 °C ambient without load

reduction, 25 A up to 60 °C.

Two basic versions with factory preset

ratings:

version 1: 1 A / 2 A / 3 A / 5 A / 7.5 A / 10 A

version 2: 15 A / 20 A / 25 A

Induced current consumption

I0 of the unit (OFF condition) < 1 mA

T*ical voltage drop UON

at rated current IN (at 25 °C) IN UON IN UON

1 A 50 mV 10 A 110 mV

2 A 55 mV 15 A 70 mV

3 A 60 mV 20 A 90 mV

5 A 80 mV 25 A 120 mV

7.5 A 90 mV

Switching point t*ically 1.3 x IN

(-40 °C...+85 °C: 1.1...1.5 x IN)

Trip time (standard curve) t*ically 200 ms with switch-on onto

overload and/or load increase on duty

Current limitation version 1: t*ically 75 A

version 2: t*ically 350 A

Temperature disconnection power transistor > 150 °C

After trip - resettable via external control signal

(low-high) at control input IN+

- reset of supply voltage

Parallel connection of channels for loads of 25 A plus, several units of

identical current ratings may be

connected in parallel. To ensure equal

distribution of current between units,

symmetrical design of the supply feed

is necessary (length and cross section).

Leakage current in OFF

condition version 1: max. 100 μA

version 2: max. 500 μA

Free-wheeling diode integral

for connected load version 1: max. 40 A

version 2: max. 100 A

Delay time ton / toff t*. 5 ms / t*. 1.5 ms (EMC filter in

(resistive load) control input)

The Smart Power Relay E-1048-8C.- is a remotely controllable

electronic load disconnecting relay with three functions in a single unit:

● electronic relay

● electronic overcurrent protection

● status indication

The 7 pin CUBIC version is designed for use with standard automotive

relay sockets. A choice of current ratings is available from 1 A

through 25 A. An operating voltage range of DC 9...32 V allows the

connection of DC 12 V and DC 24 V loads.

In order to switch and protect loads remotely, it has until now been

necessary to connect several discreet components together

- an electro-mechanic relay, control cable and integral contact

to close the load circuit

- an additional protective element (circuit breaker or fuse) for cable

or equipment protection

- a device for current measurement (shunt)

Now t*e E-1048-8C combines all these functions in a single unit,

thus minimising the number of connections in the circuit and

thereby reducing the risk of failures.