CHINT JYB-714 Liquid Level Relay 3A AC220V

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

المواصفات الرئيسية:

Control voltage: AC220V 50Hz

Contact rating: 3A AC220V (حمل مقاوم)

تكوين الاتصال: 1 changeover contact (لا + نورث كارولاينا)

Probe current: ≤ 50μA (safe low current)

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

درجة حرارة التشغيل: -5درجة مئوية ~ +40 درجة مئوية

2. الوظائف الأساسية & التطبيقات

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

التطبيقات النموذجية:

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:

صالة 1 to L, صالة 5 to N

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

صالة 4 (لا) + صالة 3 (COM) connect to contactor coil control

2. Drainage Control:

صالة 1 to L, صالة 5 to N

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

صالة 2 (نورث كارولاينا) + صالة 3 (COM) connect to contactor coil control

6. تثبيت & ملاحظات الاستخدام
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. الصيانة اليومية:

Clean scale and dirt from electrodes regularly to maintain conductivity

Inspect probe cable insulation for damage

7. الأخطاء الشائعة & استكشاف الأخطاء وإصلاحها

8. اختيار & Alternatives

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

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

ملحوظة: 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 (النوع القياسي)

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

سمات: Same platform design as CHINT, universal 8‑pin base, سعر منخفض, wide service network.

2. Xinling Electric Series

HHY7G AC220V (water supply dedicated)

HHY7P AC220V (drainage dedicated)

سمات: 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

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

3. Specialized Alternatives (Upgraded Functions / بيئات خاصة)
4. CKC (Taiwan)

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

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

2. اومرون

61F-GP AC220V liquid level control relay

المزايا: Internationally renowned, موثوقية عالية, LED status indication, suitable for critical equipment.

ملحوظة: 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.

سمات: 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. المعدات الحرجة: 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 (نوع وحدات). Below is the complete model list by series.

1. JYB-714 Series (Core Basic Series)

1.1 Standard Models

1.2 نماذج مطورة (with LED Indicator)

Common Parameters:

Contact rating: 3A AC220V (حمل مقاوم)

تكوين الاتصال: 1 changeover contact (لا + نورث كارولاينا)

Probe current: ≤ 50μA

Control distance: ≤ 1km

تصاعد: Standard 8‑pin base (عالمي)

2. NJYW1 Series (Industrial Enhanced Series)

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

3. NJB1-YW Series (Modular Series)

سمات:

تركيب السكك الحديدية 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)-الجهد االكهربى
6. NJYW1 Series: ن (شينت) JYW (liquid level relay) 1 (شفرة)-[NL/BL] (NL=standard, BL=explosion‑proof)-[1/2] (distance: 1=1km, 2=2km)-الجهد االكهربى
7. NJB1-YW Series: ن (شينت) JB (modular) 1 (شفرة)-YW (liquid level control)-الجهد االكهربى
8. Selection Parameter Comparison