Description
DEIF A/S
TYPE: ADL-111Q96
INSULATION MONITOR FOR DC NETWORK
ORDER NO.: 100044782
ITEM: 2033100017
VARIANT: 2911750110.01
SUPPLY: 24V DC ±25% ≤ 4 W
MEASURING RANGE: 50..0KOHM
RELAY COUPLING: NORM. ENERGISED
MAX LEAK CAP.: 1μF
SCALE: 50..0KOHM
AUXILIARY VOLTAGE: 24VDC
PROTECTION: IP20. FRONT: IP52
The DEIF ADL-111Q96 is a dedicated insulation monitoring device designed for DC networks, forming a critical part of marine electrical safety and control infrastructure. Installed within a Marine Control System, this instrument continuously monitors insulation resistance across a DC network, alerting operators to degradation before it can escalate into electrical faults, equipment damage, or safety incidents. Reliable insulation monitoring is a fundamental requirement onboard vessels where DC systems power essential machinery, control circuits, and safety-critical equipment.
Key Features
✓ Continuously monitors insulation resistance on DC networks with a measuring range of 50–0 kΩ and a normally energised relay coupling for fail-safe alarm behaviour.
✓ Powered by 24V DC auxiliary supply (±25%, ≤ 4 W), making it compatible with standard onboard DC control panel voltages; maximum leakage capacitance is rated at 1 μF.
✓ Front protection rated IP52 with overall enclosure protection at IP20, suitable for installation in protected switchboard or control panel environments — confirm mounting location and enclosure suitability for your specific installation.
✓ Compact 96 mm panel-mount format (Q96) integrates into standard marine control panels, switchboards, and automation cabinets; system compatibility with other DEIF panels or controllers should be confirmed against your vessel’s configuration.
✓ Replacement and commissioning should reference the original order number 100044782 to ensure correct variant selection; always verify against existing system drawings and nameplate data before installation.
Marine Applications
✓ DC switchboard and power distribution panels aboard cargo vessels, tankers, and offshore support vessels where insulation integrity monitoring is required.
✓ Engine room control systems on ferries, RoRo vessels, and workboats utilising DC auxiliary circuits for automation and safety functions.
✓ Battery-backed and UPS systems on naval auxiliaries or research vessels where continuous insulation supervision of DC networks is operationally critical.
✓ Automation and monitoring cabinets on platform supply vessels (PSVs) and offshore drilling units where DEIF control systems are deployed for power management.
✓ Retrofit and upgrade projects on vessels requiring insulation monitoring compliance in DC network installations as part of class survey or system modernisation programmes.
Why Marine Engineers Choose
Marine engineers specify the DEIF ADL-111Q96 for its reliable, continuous insulation monitoring capability on DC networks, its straightforward panel integration in the standard Q96 format, and the dependable fail-safe relay output that supports onboard alarm and shutdown logic — all backed by DEIF’s established reputation in marine electrical automation.
Ideal For
Cargo ships, tankers, offshore support vessels, ferries, platform supply vessels, workboats, and any commercial or industrial vessel operating DC control or power networks where insulation monitoring is required by class rules or operational safety standards.
Technical Support & Compliance
Technical assistance is available to support remote troubleshooting, onboard fault diagnosis, commissioning, and system integration for this insulation monitor — subject to confirmation of your installation details. Retrofit and replacement guidance can be provided to ensure compatibility with existing DEIF or third-party control systems. To confirm suitability, buyers are encouraged to share nameplate photographs, the original part and order numbers, system drawings or wiring diagrams, the control panel or automation system model and software version, vessel name, IMO number, and the intended scope of supply. All compatibility and compliance assessments are subject to confirmation based on the information provided.
