Description
The ZP-7510 is a compact vertical-mount float switch designed for reliable liquid level detection and control in small tanks, aquariums, hydroponic systems, and household appliances. It operates on a passive magnetic reed principle: a magnetic float ball moves vertically along the stem as liquid level changes, actuating a sealed reed switch inside the tube to open or close a circuit . The switch requires no external power for the sensing element itself—it is a dry contact device that simply makes or breaks a connection when the float reaches its actuation point.
The PP (polypropylene) construction provides good resistance to weak acids and alkalis, making it suitable for water-based applications and light chemical environments . With a maximum switching voltage of 110VDC and a switching current of 0.5A, this switch is intended for low-power control circuits—it should drive a relay or PLC input rather than a pump or motor directly . The 40cm cable length provides flexibility for routing to control panels, and the compact vertical design fits into tight spaces such as pet water bowls, aquarium sumps, and small reservoirs.
Critical limitations: This is a passive switch, not a continuous level transmitter. The contact rating is limited to 0.5A at 110VDC—do not connect pumps, solenoids, or motors directly without a relay . The PP body is not suitable for oils, strong solvents, or concentrated acids, and the temperature rating varies across sources (see specification note below).
Features
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Vertical Float Design: Compact cylindrical float moves along the stem for top-mounting in small tanks and reservoirs .
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PP Corrosion-Resistant Body: Polypropylene construction suitable for water and weak chemical environments; mercury-free .
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Passive Magnetic Reed Operation: No power supply required for the sensing element; the float magnet actuates the sealed reed switch .
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110VDC / 0.5A Rating: Suitable for low-power control circuits, PLC inputs, and relay coils .
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Configurable NO/NC Operation: Contact state can typically be inverted by flipping the float orientation on the stem .
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40cm Cable Length: Provides routing flexibility for control panel connections .
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Compact Size: Approximately 24mm diameter × 89–91mm body length, suitable for space-constrained installations .
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Wide Application Compatibility: Used in aquariums, hydroponics, pet water bowls, water dispensers, and small tanks .
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | ZP-7510 (ZP7510) |
| Body Material | PP (Polypropylene) |
| Mounting Type | Vertical (top-mount) |
| Switching Voltage (Max) | 110VDC |
| Switching Current (Max) | 0.5A |
| Carry Current (Max) | 1.0A |
| Contact Resistance | ≤100mΩ |
| Operating Temperature | Varies by source: -20~+80°C ; -10~+60°C ; -10~+85°C |
| Float Body Size | Approx. 24 × 89–91mm |
| Cable Length | 40cm |
| Medium Specific Gravity | >0.6 (for reliable float actuation) |
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