Description
GESTRA
NRS 2-51
LEVEL SWITCH
INPUT RATING: 24VDC, 4VA
OUTPUT RATING: 240 VAC; PILOT DUTY: 2.5A
SURROUNDING TEMPERATURE: 55C
IP 40 (IP20)
250 V ~ T 2,5 A
The Gestra NRS 2-51 is a level switch forming part of the marine control system, where a level condition is turned into a switched output for control or alarm circuits. It runs on a 24 V DC input rated at 4 VA, and its output is rated 240 V AC with a pilot duty of 2.5 A. The device is specified for a surrounding temperature of 55 °C and carries an IP 40 (IP20) rating. A 250 V ~ T 2,5 A rating also applies. It is supplied new without box.
Key Features
✓ 24 V DC input, 4 VA
✓ Output rated 240 V AC, pilot duty 2.5 A
✓ Surrounding temperature 55 °C
✓ IP 40 (IP20) protection
✓ 250 V ~ T 2,5 A rating
Marine Applications
✓ Tank high and low level alarms
✓ Level-dependent pump start and stop control
✓ Feed water and hotwell tank level monitoring
✓ Boiler plant level supervision
Technical Support
Prota Marine provides technical support, repair and onboard installation for the NRS 2-51 level switch and the wider marine control system. Support covers fault diagnosis on the switch and its connected circuits, along with commissioning support once fitted.
