CHINT JYB-714 Water/Liquid Level Control Relay CHINT JYB-714 Water/Liquid Level Control Relay
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CHINT JYB-714 Water/Liquid Level Control Relay CHINT JYB-714 Water/Liquid Level Control Relay
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CHINT JYB-714 Water/Liquid Level Control Relay
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CHINT JYB-714 Water/Liquid Level Control Relay

JYB-714 liquid level control relay for automatic tank filling and drainage. Multiple voltage options (36V-380V), supports 1km probe distance. For water towers and reservoirs.

Supply Voltage
SKU: CHINT-JYB-714-RELAY Category: Others
  • Description
  • Additional information
  • Technical Datasheet & Downloads
  • Technical FAQ & Selection Guide
Description

Product Overview

The JYB-714 Liquid Level Control Relay automatically controls liquid filling and drainage in tanks and reservoirs, maintaining set liquid levels without manual intervention. It is ideal for water towers, cisterns, and industrial liquid storage systems.

Main Features

  • Automatic Level Control: Maintains liquid levels without manual intervention
  • Multiple Voltage Options: 36V, 110V, 220V, 380V AC (50/60Hz)
  • Long-Distance Sensors: Supports probe lengths up to 1 km
  • Flexible Installation: DIN rail or panel mounting options
  • Conductive Liquid Compatible: For tap water and process water
  • Multiple Models: JYB-714, JYB-714B, JYB-714C variants available

Technical Specifications

Parameter Specification
Control Voltage 36V, 110V, 220V, 380V AC (50/60Hz)
Max Probe Distance Up to 1 km
Liquid Type Conductive liquids (tap water, process water)
Mounting DIN rail or panel mounting
Functions Automatic filling and drainage control

Technical and Application Notes

The JYB-714 series floatless relay is used for automatic liquid level control in applications such as water towers and cisterns. It monitors liquid levels using electrode probes and automatically controls pumps or valves to maintain desired levels. The relay is not recommended for oil, pure water, or flammable and high-density liquids.

Typical Applications

  • Water tower level control
  • Cistern and reservoir management
  • Industrial liquid storage tanks
  • Wastewater treatment systems
  • Irrigation systems
  • Cooling tower water level control

Ordering Support

When ordering JYB-714 liquid level relays, please specify:

  • Control voltage (36V, 110V, 220V, or 380V AC)
  • Model variant (JYB-714, JYB-714B, or JYB-714C)
  • Probe length requirements
  • Mounting preference (DIN rail or panel)

Product Catalog

For detailed specifications and technical data, please refer to the product catalog below.

JYB-714 Catalog Page 1
JYB-714 Catalog Page 2
Additional information
Supply Voltage

AC 220V, AC 380V, DC 24V

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for CHINT JYB-714 Water/Liquid Level Control Relay.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

AC-1 / AC-3 Duty

How to calculate contactor rating based on motor power and utilization categories (AC-1 vs AC-3 vs AC-4)?

A

AC-3 rating applies to standard squirrel-cage motor starting and stopping during normal run (starting current 5–7x In). For non-inductive or purely resistive heating loads, use the higher AC-1 rating. For severe inching, jogging, and plugging applications (AC-4 duty), derate the contactor or upsize by 1 to 2 frame sizes to prevent contact erosion.

Coil Voltage Selection

How to choose the correct control coil voltage, frequency, and electronic wide-voltage options?

A

Standard AC coils include 24V, 48V, 110V, 220V/230V, 380V at 50/60Hz. For DC control loops or PLC outputs, specify DC coils or electronic wide-range AC/DC coils (e.g. 100V–250V AC/DC) which feature built-in surge suppression, low holding power consumption, and immunity to voltage dips.

Overload Coordination

How to size and coordinate the matching thermal overload relay (TOR) for Type 2 protection?

A

Select a thermal overload relay whose current setting range straddles the motor full-load current (FLA). Set the dial precisely to 1.0x motor nameplate FLA. For IEC 60947-4-1 Type 2 coordination, pair the contactor and relay with backed-up upstream fuses or fast-acting MCB/MCCB to prevent welding under fault conditions.

Auxiliary & Interlocks

What auxiliary contact blocks and mechanical interlocks can be added for motor reversing?

A

Units feature built-in 1NO or 1NC auxiliary contacts, expandable with top-mounted 2-pole or 4-pole auxiliary contact blocks (F4 / AX) and pneumatic timer delay blocks. For forward/reverse motor starters or star-delta starter assemblies, add side-mounted mechanical interlock units (MI) with electrical interlocking.

Ambient & Altitude Derating

How do ambient temperature and installation altitude affect contactor performance?

A

Standard ratings are calibrated for -5°C to +40°C. For ambient temperatures exceeding 55°C or altitudes above 2000m (where reduced air density diminishes heat dissipation and dielectric insulation), derate operational current by 2% per 100m above 2000m and verify insulation voltage limits per IEC standards.

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