Electronic Products For The Automotive Market
E1038 24V 200A
BATTERY MANAGEMENT UNIT WITH WARNING
BATTERY MANAGEMENT UNIT WITH WARNING
Part Number
E1038
Description
24V 200A Battery Management Unit with Warning
Supply Voltage
20V to 30V
Supply Current: Contactor “On”, No Load
10mA Typical
Supply Current: Contactor “Off”, No Load
<1mA
Contactor Load Current
200A
Switch “On” Voltage adjustment range
24V to 26.5V
Switch “Off” Voltage Hysteresis range
0.2V to 2.5V
Factory Setting: Switch “On” Voltage
26.0V
Factory Setting: Switch “Off” Voltage
23.5V
Override Input Resistance
>150kΩ
Override Input Voltage* (Active)
> 20V
Disconnect Warning
White LED + Optional Sounder
Case Style
Water Proof Enclosure
Dimensions
228 x 140 x 90 mm
Weight
1.2kg
Fixing
4 x 8mm Holes, 210mm X 68mm Pitch
Case Material
Grey ABS
Bracket material
Aluminium Alloy
Note:
1. If the override facility is used and the battery voltage drops below 20.0V the contactor may not disconnect the load. When power is applied to the override pin there may be a delay of up to 30 seconds before the contactor switches.
2. Varies with switch on voltage setting
Go to Wiring Diagram for E1038
Go to 12V Version of this Unit
This unit was designed to monitor the voltage of a battery and connect or disconnect a load of up to 200A.
When the battery voltage is above the Switch “On” voltage (26V) the load is connected to the battery.
When the battery voltage drops below the Switch “Off” voltage (23.5V) the “Low Battery” warning light emitting diode (led) lights for 2 minutes then after a short delay the load is disconnected the unit then switches to low power mode until the battery is recharged and the voltage rises above the Switch “On” voltage then the load is reconnected to the battery.
When the battery voltage is above the Switch “On” voltage (26V) the load is connected to the battery.
When the battery voltage drops below the Switch “Off” voltage (23.5V) the “Low Battery” warning light emitting diode (led) lights for 2 minutes then after a short delay the load is disconnected the unit then switches to low power mode until the battery is recharged and the voltage rises above the Switch “On” voltage then the load is reconnected to the battery.
An override pin allows the load to be connected1 for emergency use only.
To reduce power consumption to a minimum (10mA “On”, < 1mA “Off”) a latching contactor is used.
When the contactor is “On” the coil is pulsed to ensure it remains on
When the contactor is “Off” the coil is pulsed for approx. 2 minute before the unit goes to low power mode.
The Switch “On” and Switch “Off” voltages are factory set but can be adjusted by the customer.
There are 2 light emitting diode (led) indicators:
Red “ON” is used as a multipurpose indicator:
To reduce power consumption to a minimum (10mA “On”, < 1mA “Off”) a latching contactor is used.
When the contactor is “On” the coil is pulsed to ensure it remains on
When the contactor is “Off” the coil is pulsed for approx. 2 minute before the unit goes to low power mode.
The Switch “On” and Switch “Off” voltages are factory set but can be adjusted by the customer.
There are 2 light emitting diode (led) indicators:
Red “ON” is used as a multipurpose indicator:
1. Led on – load is connected (there could be a delay after the led lights before the load is connected)
2. Led off - the unit is in low power mode
3. Led flashes each time the contactor coil is pulsed
4. Aids setting of the switch “On” and “Off” voltages
White “LOW BATTERY” lights for 2 minutes before the battery is disconnected
