Description
THORN SECURITY LIMITED
OPTICAL SMOKE DETECTOR
SCN 516.021.003
BASEEFA NO. EX 88B2168X EEX IA IIC T5
CEQ= 1.5NF
UMAX= 28V
WMAX= 0.58W
DETECTOR BASE
SCN 517-025-001
The Thorn Security MR301EX is an optical smoke detector, SCN 516.021.003, supplied with a detector base, SCN 517-025-001, for the shipboard fire alarm system. It senses smoke in the space it covers and raises an alarm on the detection circuit. The head is marked EEx ia IIC T5 under BASEEFA certificate EX 88B2168X, with entity parameters of Umax 28 V, Wmax 0.58 W and Ceq 1.5 nF, for intrinsically safe circuits in hazardous areas. The detector and base are in Used condition.
Key Features
✓ Optical smoke detector, SCN 516.021.003
✓ EEx ia IIC T5 marking
✓ BASEEFA No. EX 88B2168X
✓ Umax 28V, Wmax 0.58W, Ceq 1.5nF
✓ Detector base SCN 517-025-001
Marine Applications
✓ Smoke detection in cargo pump rooms on tankers
✓ Paint stores and battery rooms on intrinsically safe circuits
✓ Hazardous zones on gas carriers and chemical tankers
Technical Support
Prota Marine provides technical support, repair and onboard installation for the optical smoke detector and the wider fire alarm system. Fault diagnosis covers the detector head, base and intrinsically safe detection circuit, and commissioning support is available once the unit is installed.




