A30-U1:only one mode: voltage control relay ON/OFF without delay.
A30-U3:with 4 modes:
P-1: Setting the delay time for relay on and display off.
P-2: Voltage control timer-A (relay open first)
P-3: Voltage control timer-B (relay opens first)
P-4: Voltage range control
Both have the same hardware and the same electrical output
A30-U1
Function:
Digital DC voltage detection, relay output control.
DC 6~80V relay board with 2 buttons for easy operation.
With bright LED display, convenient to check the value.
Adjustable voltage detection range: DC 0~99.9V.
When the measured voltage is lower than the lower limit or higher than the upper limit, the relay works.
Can be used for voltage detection switch, battery over/under voltage protection or discharge meter.
Supplied with cover for protection.
Specifications:
PCB+ABS material.
Working voltage: DC 6~80V
Voltage detection range: DC 0~99.9V
Error: +/-0.1V
Working current: 8mA/24V (relay open, LED shows OFF about 4mA/24V); 58mA/24V (relay closed)
Transformation set (normally open/normally closed, NO/NC)
Contact load: NO: 30A/250V AC or 30A/30V DC; NC: 20A/250V AC or 20A/30V DC
Caution: because the high voltage DC arc will damage the relay contact,
so the electrical load above DC60V load current is less than 10A.
Contact resistance: ≤100mΩ (1A 6VDC)
Mechanical resistance: 10 million Electrical resistance: >100,000 (20A~250VAC)
Operating temperature: -40~85°C
Item Size: 9.4*5.2*3cm/3.7*2.05*1.18inch
Package size: 9.5*6*3cm/3.74*2.36*1.18inch
Package weight: 85g/3oz
Package List:
1* Relay Switch Driver
A30-U3
Features:
Operating power is DC 6 to 80V, contact load is 30A, 250V AC or 30V DC. The high quality voltage monitoring relay is durable and features fast response time, making it more efficient.
It supports on-off delay mode, the delay time can be set from 0s to 999s.
It provides 4 operating modes: P-1, relay on and off delay time setting; P-2, voltage control timer A (delay on); P-3, voltage control timer B (delay off); and P-4, voltage range control.
It has a voltage detection channel, a set of relay switch outputs (normally open and normally closed), the timer relay can be controlled by voltage detection to achieve various functions.
It can be used in voltage monitoring, charge and discharge control, over-voltage and under-voltage protection and other fields.
Parameters:
Gear set: normally open and normally closed.
Contact loading:
NO: 30A/250V AC or 30A/30V DC
NC: 20A/250V AC or 20A/30V DC
*Caution: because the high voltage DC arc will damage the relay contact, so the electrical load above 60V DC load current is less than 10A.
Contact resistance: ≤ 100mΩ (1A, 6V DC)
Mechanical resistance: 10 million
Electrical life: >100,000 (10A to 250V AC)
Turn off the display, the minimum current value is 4mA/24V (relay open).
Settings are automatically saved when switched off.
Specifications:
Material: ABS.
Color: Blue
Output timer range: 0 to 999 seconds (when the voltage reaches the set value, the relay will delay opening or closing)
Detection sampling delay: 0.1 to 0.9 seconds (detection sensitivity)
Voltage detection range: DC 0 to 99.9 V, error: ±0.1 V
Adjustable upper and lower voltage limit: DC 0 to 99.9V
Operating power supply: DC 6 to 80V (max. 60V battery)
Item size: 9.4*5.2*3cm/3.7*2.04*1.18inch
Package Size: 9.5*6*3cm/3.74*2.36*1.18inch
Package weight: 92g / 3.24oz
Packing list:
1*Voltage relay
1 * User Manual (English)