Tilt level switch BIP STOP

floatfor waterfor wastewater

Presentation
The BIP STOP is an on/off float level switch designed for control of clean and waste water in small tanks and for automatic control of small pumps (can be used directly or via a relay). It is widely used by pump manufacturers for industrial and sanitation installations.

Main features
The BIP STOP uses a simple mechanical tilting mechanism with a change-over contact (COM / NO / NC) allowing selection of filling or draining mode at wiring. Its wide differential angle provides jerk-free switching even in agitated liquids. It can detect both high and low levels in the same tank (typical hysteresis up to 0.6 m). The biconical polypropylene float shape reduces accumulation of impurities and extends service life. Not recommended for very slow filling rates (consider AQUA or SOBA series for such applications). Manufactured in France.

Operating principle
Tilting detection: the float moves freely with the liquid level. When a preset level is reached the float tilts and opens/closes the integrated mechanical switch according to the selected mode (filling or draining). Used in pairs, the switches regulate minimum and maximum tank levels.

Modes

• Drain mode: activates the pump at high position to prevent overflow and stops the pump when the tank is empty to protect it.
• Fill mode: the circuit closes (NC) at low position to start the pump and fill the tank.

Electrical characteristics (examples)
Change-over contact COM / NO / NC (reference example 20(8)A - 250 V). Examples from product documentation: 250 V AC - 20 A (resistive), 250 V AC - 8 A (inductive), 48 V - 1.5 A, 24 V - 10 A (resistive) / 6 A (inductive), 50 V - 1.8 A.

Additional information
Omnidirectional detection due to float shape (operates regardless of float orientation in the liquid). Versions available: VT (drain with earth wire), VS (drain with multifunction plug) or wiring 3G1 for direct pump connection. Adjustable ballast allows tuning the switching angle.

Technical specifications

• Switching angle: ±110°
• Admissible fluid densities: 0.70 to 1.15 kg/dm³
• Ingress protection: IP68
• Maximum operating pressure: 3.5 bar
• Maximum temperature: 85 °C
• Enclosure / float: biconical shape in copolymer polypropylene
• Cable: 3 conductors 1 mm² (neoprene sheath, HR HY option)
• Float weight without cable: 105 g
• Ballast: 175–250 g filled resin (adjustable)
• Standard cable lengths: 3 m, 5 m, 6 m, 10 m, 20 m
• Contact: change-over COM / NO / NC (filling or draining mode)
• Electrical examples: 250 V AC - 20 A (resistive), 250 V AC - 8 A (inductive), 48 V DC - 1.5 A, 24 V DC - 10 A (resistive) / 6 A (inductive)