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- Description
- Instructions
- Payment methods
- Warranty
SSR-05 liquid level control relay - TENSE
Product description
The SSR-05 relay is designed for monitoring the liquid level in wells, tanks, reservoirs, or pits.
Provides protection for centrifugal pumps against dry running or lack of water which can damage hydraulic components and cause the pump to overheat.
The device is suitable for:
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Household and industrial water pumps (surface and submersible pumps).
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Pump control for filling tanks
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Water leakage signaling and pump shutdown
The relay uses 2 or 3 level sensors, allows adjustment of sensor sensitivity, and provides an LED indication of the water level.
Main Features
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Protection of pumps against dry running
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Monitoring of water levels in tanks, reservoirs, or wells
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Adjustable sensitivity of level sensors
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LED indication of the water level
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Clamp connection for easy installation
Protection of pumps against dry running
Monitoring of water levels in tanks, reservoirs, or wells
Adjustable sensitivity of level sensors
LED indication of the water level
Clamp connection for easy installation
Technical parameters
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Nominal voltage: 220 V AC
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Operating range: 170-260 V AC
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Operating frequency: 50/60 Hz
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Operating power: < 3 VA
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Operating temperature: -10 °C ... +50 °C
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Connection: terminal
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Dimensions: 44 × 75 × 85 mm
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Weight: 250 g
Nominal voltage: 220 V AC
Operating range: 170-260 V AC
Operating frequency: 50/60 Hz
Operating power: < 3 VA
Operating temperature: -10 °C ... +50 °C
Connection: terminal
Dimensions: 44 × 75 × 85 mm
Weight: 250 g
Recommended accessories
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Level sensors (2 or 3 depending on configuration)
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2A circuit breaker to protect input and output channels (2 pieces)
Level sensors (2 or 3 depending on configuration)
2A circuit breaker to protect input and output channels (2 pieces)
Application
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Automatic switching on and off of pumps
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Tank and reservoir filling control
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Water shortage signaling and pump protection
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Ideal for household and industrial applications
Automatic switching on and off of pumps
Tank and reservoir filling control
Water shortage signaling and pump protection
Ideal for household and industrial applications
Download on
Online payment by card – after completing the order, you will be redirected to the payment page. The payment confirmation will be sent to your e‑mail.
Cash on delivery (COD) – you pay the amount directly to the driver upon delivery.
By bank transfer – at the latest on the next working day, you will receive a pro-forma invoice by e‑mail with the account number to which you can pay.
On invoice – this payment option is available for partners who have concluded a framework agreement with our company.
If you want to use one of the last two payment methods, please contact our business manager. He will explain to you how to receive an invoice with or without VAT.
The electrical equipment we supply meets high quality standards, has a 24-month warranty, and fully complies with all EU requirements.
In case of a complaint, no return costs will be charged.

