CNS 15156-200/IEC 62271-200

Distribution panel flood alarm equipment is a multifunctional leak detection device, capable of connecting detection lines, with a small installation volume, suitable for installation in rails or control electrical boxes.
It can integrate with various monitoring systems through its relay signal processing output and RS485 communication function, achieving remote alarms and remote device control.
The internal circuit system of the equipment uses highly sensitive components, ensuring high sensitivity during detection while avoiding false alarms caused by various external factors, designed with unique anti-interference protection function.

Product Features

Dedicated leak detection and alarm equipment designed for electrical distribution panels.

■ High Sensitivity Detection: Detects water drops at its most sensitive, preventing early seepage expansion.

■ Can be directly installed in a low-voltage control room, with detection wiring placed at the bottom of the distribution panel.

■ Multifunctional Signal Output: Relay contact output, convenient for connecting to alarm systems or other control devices.

■ Sensitivity Adjustable (From Drip Level to Large Volume Water Accumulation).

■ Simple Operation: Silent button, light indicator (power light on, alarm light flashing).

■ Communication interface: equipped with RS485 interface, can be integrated into the monitoring system.

Technical Specification

Technical Description
Product Model Number (1)	NLM-A
Water Leakage Sensor (2)	Standard length is 7 meters (custom length available)
Lead-out wire (3)	Standard length is 5 meters (special lengths can be customized)
Plastic Casing	Black fireproof ABS material, DIN 35mm rail installation
Dimensions and Weight	External Dimensions L86×W58×H52mm; Weight 100g
Sensitivity Testing	0–10K No gradation adjustment, response time less than 1 second (when sensitivity is highest)
Power Requirements	12-24V DC/AC power supply, standby current 70mA, alarm current 120mA
Relay output	1SPDT Normally Open Normally Closed Output, Maximum Output Power 60VDC/2A or 220VAC/2A
RS485 output	RS+ RS– Two-wire communication interface, device address 1–255