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Electro-LA5-Current-Monitor

Current Monitor – LA5

R532.22

The LA5 is a precise UNDER / OVER current monitoring relay. The unit can be ordered in many AC / DC current ranges, making it ideal for many current monitoring applications. The set point and hysteresis can be adjusted with separate potentiometers. The unit also incorporates a latch facility to prevent undetected failures. For applications which necessitate a CT, all units are supplied with a terminating resistor to prevent open circuit.

 

Features:

 

  • Monitoring relay for current control
  • Measures separate current input
  • Rear DIP switch selection of UNDER / OVER current
  • Rear DIP switch selection for 10sec start-up delay
  • Potentiometer adjustable current limits
  • Potentiometer adjustable hysteresis limits
  • Power supply ON and Relay ON LEDs
  • Latch facility incorporated
  • Output 10 A SPDT relay
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Description

Input Specifications

Input Pin 5 & 7
Measuring 1 – 5 A
Internal Resistance 0.1Ω
Maximum Overload Current 10 A (30 sec)
Measuring Ranges (1A) 0.2 – 1A
Internal Resistance 5.6Ω
Maximum Overload Current 5 A (30 sec)
Hysteresis 5 – 50%
Repeat Accuracy <1%
Response Time 1 sec
Start-up Delay 10 sec

Output Specifications

Output Specifications SPDT
Rated Isolation Voltage 6000 VAC (contact / electric)
1000 VAC (contact / contact)
Nominal Rate in AC1 (AG-Ni) 1500 VA
Rated Current 10A
Rated Voltage 250V
Mechanical Life 10×106 cycles
Electrical Life 10×103 cycles (at max load)
Operation Frequency ≤ 1800 cycles/h

Supply Specifications

Power Suppy AC Type 110, 230, 400V, 525V ± 10%
(Galvanic) 50 Hz ± 5Hz
Isolation 4kV
Consumption ± 3VA
±6 VA 525 VA
Power Suppy DC Types 12, 24, 48 V ± 10%
(Non-galvanic)
Isolation None
Consumption ± 100mA

General Specifications

Power ON Delay ≤ 300 ms
Power OFF Delay ≤ 200 ms
Indication for
Power Supply ON LED red
Output ON LED red
Environment
Degree Of protection IP 20
Operating Temperature -10 to + 50°C
Storage Temperature -50 to + 85°C
Weight 200g

Additional information

Supply Voltage

525Vac, 400Vac, 230Vac, 110Vac, 48Vac/dc, 24Vac/dc, 12Vac/dc

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