CHINT RCCB NBHLE-40Y-1PC32

CHINT NBHLE-40Y-1PC32 is a 1P+N two-pole disjoncteur à courant résiduel (RCCB) specially designed for household and small-to-medium engineering applications. Il intègre la surcharge, short-circuit, and leakage protection functions, suitable for AC 50Hz/60Hz circuits with a rated voltage of 230V. Below is its core information and application guidelines:

1. Paramètres techniques de base
2. Courant nominal et caractéristiques de déclenchement

Courant nominal: 32UN, suitable for conventional loads such as lighting, prises, and small air conditioners, supporting up to approximately 7kW single-phase devices (par ex., instantaneous water heaters).

Default Type C trip characteristic (instantaneous trip at 5-10 times rated current), ideal for resistive loads (par ex., lampes, electric heaters); for inductive loads like motors, Tapez D (instantaneous trip at 10-14 fois) is available.

2. Leakage Protection and Breaking Capacity

30mA leakage action current, rapidly cutting off faulty circuits within 0.1 secondes, conforme à la CEI 61009-1 and GB/T 16917.1 standards to prevent electric shock and fire risks.

Pouvoir de coupure: 6le, capable of handling common household short-circuit currents (typically 2-4kA) to ensure safe power disconnection.

3. Electrical Performance and Certifications

– Tension nominale: 230V, operating temperature range: -5°C à +70°C, IP20 protection grade, resistant to moisture and dust.

– Certified by CCC and compliant with CE standards, ensuring reliable quality.

1. Scénarios d'application typiques
2. Household Power Distribution Systems

Branch Circuit Protection: Socket circuits in humid areas like kitchens and bathrooms to prevent safety accidents from leakage. Par exemple, electric water heaters (3-8kw) can directly use a 32A circuit breaker with 30mA leakage protection for dual-layer safety.

Whole-House Leakage Protection: If the distribution box lacks a main RCCB, NBHLE-40Y-1PC32 can serve as the main switch to monitor leakage across all circuits.

2. Commercial and Light Industrial Use

Small Office Equipment: Centralized power supply circuits for printers, projecteurs, water dispensers, etc., to avoid overload and leakage risks.

Store Lighting Systems: LED strips and display cabinet circuits in clothing stores, cafes, etc., providing stable protection.

3. New Energy Equipment Adaptation

AC Charging Pile Protection: Une pile de recharge de 7 kW (32UN) can directly use this circuit breaker as the main switch, paired with NXB series circuit breakers for hierarchical control.

PV Inverter Branch: Protection for the AC side of small household PV systems to prevent damage from backflow current.

III. Installation and Selection Recommendations

1. Spécifications d'installation

Montage sur rail: Compatible with TH35-7.5mm standard rails, wiring terminals support 2.5-10mm² conductors, and vertical installation is required for optimal heat dissipation.

Exigences environnementales: Avoid installation in high-temperature (>70°C), high-humidity, or flammable environments; distribution boxes must have reserved heat dissipation space (≥30 cm du mur).

2. Logique de sélection

Correspondance de charge: Equipment total power (W) ÷ tension (230V) = courant (UN). Le courant nominal du disjoncteur doit être ≥1,2 fois la valeur calculée. Par exemple, a 6kW load corresponds to 26.1A, making a 32A circuit breaker compliant.

Leakage Protection Hierarchy: If the main switch already has an RCCB, use ordinary circuit breakers (par ex., NXB63-2P/32A) for branches; if not, prioritize NBHLE series for whole-house protection.

3. Accessory Expansion

Auxiliary Functions: Can be paired with AX-X1 auxiliary contacts (indicate on/off status), AL-X1 alarm contacts (trigger signals during faults), or shunt trip coils (remote tripping control).

System Compatibility: Compatible with NXB series circuit breakers, rail sockets, and surge protectors (par ex., NXU) to build modular power distribution systems.

1. Maintenance and Safety Tips
2. Inspections régulières

Monthly Testing: Press the test button (TEST) to verify the leakage protection function. Replace immediately if it fails to trip.

Annual Check: Use an infrared thermometer to detect contact temperatures (≤60°C) et empêche l'augmentation de la résistance de contact due à l'oxydation.

2. Dépannage

Déclenchements fréquents: If overload or short circuit is ruled out, aging insulation may be the cause, requiring professional electrical inspection.

Leakage Indicator Protrusion: Indicates a past leakage fault; identify and fix the cause before resetting.

1. Canaux de tarification et d'achat

Market Price: Reference price per unit is approximately 150-200 CNY (subject to local dealers).

Purchase Advice: Procure through CHINT’s official channels (par ex., Tmall flagship store, authorized dealers) to ensure product quality and after-sales service.

1. Typical Configuration Schemes

Avec une grande fiabilité et une adaptabilité flexible, CHINT NBHLE-40Y-1PC32 is the ideal choice for leakage protection in household and small-to-medium engineering projects. Users can select trip characteristics based on load types and strictly follow installation guidelines to ensure electrical safety.