Description
The
DEIF AAL-111Q96 is a 96×96 mm panel-mounted insulation monitor designed to supervise insulation resistance between unearthed (isolated) AC networks and earth/safety cables, commonly used in marine and industrial applications. It supports 1-phase and 3-phase networks up to 440V AC, providing an adjustable relay output for alarms when insulation drops.
Key features and specifications of the AAL-111Q96 include:
- Application: Ideal for monitoring insulated AC networks (with/without neutral), marine installations, and backup generators.
- Measurement Range: Measures insulation resistance in kilo-ohms (
kΩk cap omega
𝑘Ω
), commonly featuring a 0-50
kΩk cap omega𝑘Ω
scale.
- Auxiliary Voltage: Compatible with 110-220-380-415-440V AC
±20%plus or minus 20 %
±20%
(via transformer taps).
- Alarm System: Equipped with a red LED for visual indication and a relay output (change-over contact) with an adjustable set point to detect faults before they cause equipment failure.
- Compliance: Meets IEC 61557-8 standards for safety.
- Functionality: Capable of handling high leakage capacitance (up to 2000
μFmu cap F
𝜇𝐹
) and offers normal, fast, and test operating modes.
The unit features a 4-second, 0-second or other selectable delay settings to prevent nuisance tripping. It is crucial to use only one instrument per insulated network to avoid interference.
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