CHINT JYB-714 Relais de niveau de liquide 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 (charge résistive)

Contact configuration: 1 changeover contact (NON + Caroline du Nord)

Probe current: ≤ 50μA (safe low current)

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

Température de fonctionnement: -5°C ~ +40°C

2. Fonctions principales & Applications

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

Applications typiques:

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. Principe de fonctionnement (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 (NON) + 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 (Caroline du Nord) + Terminal 3 (COM) connect to contactor coil control

6. Installation & Notes d'utilisation
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. Sécurité électrique:

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. Entretien quotidien:

Clean scale and dirt from electrodes regularly to maintain conductivity

Inspect probe cable insulation for damage

7. Défauts courants & Dépannage

8. Sélection & Alternatives

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

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

Note: 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 (modèle standard)

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

Caractéristiques: 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)

Caractéristiques: 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

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

3. Specialized Alternatives (Upgraded Functions / Environnements spéciaux)
4. CKC (Taïwan)

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

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

2. OMRON

61F-GP AC220V liquid level control relay

Avantages: Internationally renowned, high reliability, LED status indication, adapté aux équipements critiques.

Note: 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.

Caractéristiques: 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. Premier choix: 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 (type modulaire). Below is the complete model list by series.

1. JYB-714 Series (Core Basic Series)

1.1 Modèles standards

1.2 Upgraded Models (with LED Indicator)

Common Parameters:

Contact rating: 3A AC220V (charge résistive)

Contact configuration: 1 changeover contact (NON + Caroline du Nord)

Probe current: ≤ 50μA

Control distance: ≤ 1km

Montage: 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)

Caractéristiques:

Montage sur rail DIN (35mm norme) 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)-tension
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)-tension
7. NJB1-YW Series: N (CHINT) JB (modular) 1 (code)-YW (liquid level control)-tension
8. Selection Parameter Comparison