Product Description
GESTRA NRS1-50 Level Switch
The GESTRA NRS1-50 is a compact level switch designed for use with GESTRA level electrodes (such as NRG 1x-50, NRG 1x-51, NRG 1x-11, NRG 1x-12) to signal MIN or MAX water levels in steam boilers, tanks (feedwater, condensate), and other vessels containing conductive liquids. It operates based on the conductive measurement principle, providing a reliable switching output when the liquid level reaches the electrode tip. This switch is commonly used for limit signalling and water level control applications.
Technical Specifications:
- Supply Voltage Options: 24 V DC; 24 V AC, 50/60 Hz; 115 V AC, 50/60 Hz; 230 V AC, 50/60 Hz
- Power Consumption: Approx. 3 VA / 1.5 W
- Sensitivity (Standard): 10 µS/cm at 25°C (for boiler applications)
- Output: 1 potential-free change-over contact
- Switching Point: Defined by the length of the connected level electrode
- Contact Rating (AC): Max. 250 V, 4 A, 500 VA cos φ = 0.7
- Contact Rating (DC): Max. 300 V, 0.2 A, 60 W (L/R = 0 ms)
- Ambient Temperature: 0 °C to +55 °C (Operating)
- Housing Protection: IP40
- Terminal Protection: IP20
- Mounting: DIN rail EN 60715
- Approvals: TÜV tested for boiler applications (meets requirements acc. to EN 12952-11 and EN 12953-9), SIL 2 (acc. to IEC 61508)
GESTRA NRS1-50
Model:GESTRA NRS1-50
| Brand | Gestra |
|---|---|
| Model | NRS1-50 |
| Part No. | GESTRA NRS1-50 |
| Category | Other products |
| Link | https://www.echuan-hydraulic.com/product/gestra-nrs1-50 |