CHINT JYB-714 Releu nivel lichid 3A AC220V

Full Name: CHINT JYB-714 Series Liquid Level Relay (YB-714 is a simplified model)

Key Specifications:

Control voltage: AC220V 50Hz

Contact rating: 3A AC220V (sarcină rezistivă)

Contact configuration: 1 changeover contact (NU + NC)

Probe current: ≤ 50μA (safe low current)

Control distance: ≤ 1km (length of probe cable)

Temperatura de functionare: -5°C ~ +40°C

2. Funcții de bază & Aplicații

Funcţie: Detects water level via electrodes, automatically controls pump start/stop, supporting water supply / drainage modes.

Aplicații tipice:

Civil water towers, elevated tanks, underground cisterns

Industrial circulating water systems, small sewage treatment equipment

Not suitable for: Oil, pure water (low conductivity), flammable and explosive liquids

3. Operating Principle (Electrode Detection)
4. Water Supply Mode: When water level is below the low limit, electrodes 5-6 conduct, relay energizes, pump starts. When water rises to high limit, electrodes 6-7 conduct, relay de-energizes, pump stops.
5. Drainage Mode: When water level exceeds high limit, electrodes 6-7 conduct, relay energizes, pump starts. When water drops to low limit, electrodes 5-6 disconnect, relay de-energizes, pump stops.
6. Terminal Definition (Standard 8‑pin Base)

5. Typical Wiring (Single‑phase Water Pump)
6. Water Supply Control:

Terminal 1 to L, Terminal 5 to N

Terminal 6 to middle level, 7 to high level, 8 to low level

Terminal 4 (NU) + Terminal 3 (COM) connect to contactor coil control

2. Drainage Control:

Terminal 1 to L, Terminal 5 to N

Terminal 6 to middle level, 7 to high level, 8 to low level

Terminal 2 (NC) + Terminal 3 (COM) connect to contactor coil control

6. Instalare & Note de utilizare
7. Electrode Installation:

Electrode material: 304 stainless steel recommended for corrosion resistance

Spacing: ≥ 10cm between high/low electrodes; ≥ 15cm between electrodes and tank wall

Avoid installation in bubble‑prone areas

2. Electrical Safety:

Route signal cables separately, keep ≥ 30cm from power cables

Must be protected by a 10A circuit breaker

Use waterproof junction boxes in damp environments

3. Daily Maintenance:

Clean scale and dirt from electrodes regularly to maintain conductivity

Inspect probe cable insulation for damage

7. Common Faults & Depanare

8. Selecţie & Alternative

Upgraded Model: JYB-714B (with LED indicator for clearer status)

Alternative Brands: Xinling HHY7G/HHY7P, People Electrical Appliance JYB series (parameter‑compatible)

Nota: For high‑power pumps, must use an AC contactor; do not drive directly (limited 3A contact capacity)

Recommended Replacements for CHINT JYB-714 (YB-714) 3A AC220V Liquid Level Relay

1. CHINT Original Upgraded Alternatives

Matching Core Parameters: All retain 3A AC220V contact rating, 1 changeover contact, electrode detection, fully compatible with original base and wiring.

2. Direct Domestic Brand Alternatives (100% Parameter Compatible)
3. Delixi Series

JYB-714 AC220V (tip standard)

JYB-714A AC220V (improved, stronger anti-interference)

Caracteristici: Same platform design as CHINT, universal 8‑pin base, lower price, wide service network.

2. Xinling Electric Series

HHY7G AC220V (water supply dedicated)

HHY7P AC220V (drainage dedicated)

Caracteristici: 3A AC220V contact rating, control distance up to 100m, suitable for long probe cables.

3. People Electrical Appliance Series

JYB-714 AC220V liquid level relay

Caracteristici: Compliant with GB/T14048.5, excellent moisture resistance, ideal for humid environments.

3. Specialized Alternatives (Upgraded Functions / Medii speciale)
4. CKC (Taiwan)

C61F-GP-N AC220V non-float liquid level relay

Avantaje: Imported quality, strong anti-interference, suitable for precision control, supports 3A AC220V load.

2. OMRON

61F-GP AC220V liquid level control relay

Avantaje: Internationally renowned, high reliability, LED status indication, potrivit pentru echipamente critice.

Nota: Requires dedicated base, higher cost.

3. Wireless / Smart Alternative

CHINT NB-IoT Intelligent Liquid Level Controller: Remote monitoring, mobile APP control, suitable for unattended sites.

Caracteristici: No wiring needed, data transmission via NB-IoT, supports water level alarms and history query.

4. Key Compatibility Requirements for Replacement

5. Recommendation Priority
6. First Choice: CHINT JYB-714B/C → Original upgrade, fully compatible, clear indication
7. Best Value: Delixi JYB-714A → Affordable, stable, convenient service
8. Industrial Use: Xinling HHY7G/7P → Long distance, strong anti-interference
9. Critical Equipment: OMRON 61F-GP → High reliability for continuous operation

Complete Model List of CHINT Liquid Level Relays

CHINT liquid level relays are available in three main series: JYB-714 (basic type), NJYW1 (industrial enhanced type), and NJB1-YW (modular type). Below is the complete model list by series.

1. JYB-714 Series (Core Basic Series)

1.1 Modele standard

1.2 Modele îmbunătățite (with LED Indicator)

Common Parameters:

Contact rating: 3A AC220V (sarcină rezistivă)

Contact configuration: 1 changeover contact (NU + NC)

Probe current: ≤ 50μA

Control distance: ≤ 1km

Montare: Standard 8‑pin base (universal)

2. NJYW1 Series (Industrial Enhanced Series)

Series Advantages: Protection class IP40, improved anti-interference, stable probe current ≤40μA.

3. NJB1-YW Series (Modular Series)

Caracteristici:

Montare pe șină DIN (35mm standard) for automation integration

Fault diagnosis, PLC compatible

Contact rating increased to 5A AC220V, suitable for direct small pump control

4. Model Naming Explanation
5. JYB-714 Series: JYB (liquid level relay)-714 (design code)-[A/B/C] (version: A=basic, B=single LED, C=dual LED)-Voltaj
6. NJYW1 Series: N (CHINT) JYW (liquid level relay) 1 (code)-[NL/BL] (NL=standard, BL=explosion‑proof)-[1/2] (distance: 1=1km, 2=2km)-Voltaj
7. NJB1-YW Series: N (CHINT) JB (modular) 1 (code)-YW (liquid level control)-Voltaj
8. Selection Parameter Comparison