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Brand: CHINT
CHINT NXBLE-32 RCBO Residual Current Circuit Breaker, 6-32 A
Description
Overcurrent and earth-leakage protection in one module
The NXBLE-32 is a residual current operated circuit breaker with overcurrent protection (RCBO) from the CHINT NXB series. One device protects a single final circuit against overload, short-circuit and residual current, so a leakage fault on one circuit trips only that circuit rather than a whole group behind a shared RCD. It is built for circuits up to 32 A in sockets, appliances and small-power outlets.
Technical specifications
| Parameter | Specification |
|---|---|
| Standard and marks | IEC 61009-1; CE, RoHS |
| Function | Overload protection, short-circuit protection, residual current operation |
| Rated current In | 6, 10, 16, 20, 25, 32 A |
| Rated residual operating current IDn | 30, 50, 75, 100, 300 mA |
| Leakage type | AC |
| Poles and rated voltage | 1P+N and 2P: 230 V AC; 3P, 3P+N and 4P: 400 V AC; 50 Hz |
| Tripping curves | B, C and D thermal-magnetic characteristics |
| Short-circuit breaking capacity Icu / Ics | 6000 A / 6000 A |
| Impulse withstand voltage Uimp | 4 kV |
| Mechanical / electrical life | 20,000 / 10,000 cycles |
| Terminals | 1 to 6 mm2; 12.5 mm wire insertion depth; 2 N.m torque, 2.5 N.m maximum |
| Temperature | Operating -35 to +70 degC; storage -35 to +85 degC; thermal element referenced to 30 degC |
| Protection degree | IP20 mounted directly; IP40 in a distribution box |
| Mounting | 35 mm DIN rail (TH35-7.5) |
| Weight | 1P+N 0.18 kg; 2P 0.25 kg; 3P 0.37 kg; 3P+N 0.40 kg; 4P 0.48 kg |
| Assembled accessories | AX-X1 auxiliary, AL-X1 alarm, SHT-X1 shunt trip, OVT-X1, UVT-X1 and OUVT-X1 voltage releases |
Choosing sensitivity and decoding the order code
The residual rating is the main selection step. A 30 mA version is the usual additional protection for socket circuits; 100 and 300 mA versions suit selectivity upstream or equipment with higher natural leakage; 50 and 75 mA sit in between. The CHINT designation reads frame, poles, curve, current, sensitivity and breaking capacity, for example NXBLE-32 3P+N C32 30mA 6kA, which has article code 819515. Other C32 30 mA examples in the catalog are 1P+N 819395, 2P 819425 and 4P 819545. A type B 6 A 1P+N version at 30 mA carries 819570.
The thermal element behaves like the NXB-63 breaker: when several devices sit side by side the catalog recommends 0.90 to 0.95 In for up to three, 0.86 to 0.80 In for four to six and lower factors beyond that. The tripping tests follow IEC 61009-1 and IEC 60898-1: no trip at 1.13 In within one hour, trip at 1.45 In, and instantaneous release between 5 and 10 In for the C curve. The device has a test button that should be pressed regularly, and the product label shows a button to press before making the circuit.
What to confirm before ordering
Check the pole arrangement and neutral wiring, the load current against the 32 A limit, the residual sensitivity required by the local wiring rules, and whether the AC leakage type is enough for loads with DC or pulsating residual components. If the application has such loads, ask for the correct type before ordering. Copper conductors from 1 mm2 to 6 mm2 are accepted. For a plain overcurrent device in the same series see the
, or browse the circuit breakers category.Documents and quotation
The CHINT NXBLE-32 RCBO catalog is attached and includes the full article code tables. Send the complete designation, quantity and delivery location through the quotation form and Seven Star LLC will confirm availability.
Datasheets & Documents
- Catalog CHINT NXBLE-32 RCBO catalog (NXB series) Download
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About brand
CHINT is a Chinese electrical equipment group founded in 1984 that makes low-voltage distribution and control apparatus together with smart energy products. The group states that it operates in more than 140 countries and regions and employs over 40,000 people.
CHINT low-voltage distribution and control range
The IEC low-voltage catalog is organised into final, secondary and main power distribution plus industrial control. Typical lines include NXB miniature circuit breakers, NXBLE residual current breakers with overcurrent protection, NL1 residual current devices, NM1 and NM8N moulded case circuit breakers, NA1 air circuit breakers, NXZ automatic transfer switching equipment, NXU surge protective devices, NXC and NCH8 contactors, NXR thermal overload relays, and NP8 pushbuttons and ND16 indicator lights.
Requesting CHINT devices from Seven Star LLC
Seven Star LLC, an independent supplier in Muscat, lists selected CHINT devices for switchboards, control panels and building services in Oman and the GCC. Each page quotes the manufacturer catalog data, so send the full designation with pole count, rated current and curve or coil voltage when asking for a quotation.
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Frequently Asked Questions
What does an RCBO such as the NXBLE-32 protect against?
It combines overload and short-circuit protection with residual current operation, so one device covers both overcurrent and earth leakage on a circuit.
Which residual currents are available?
The catalog lists 30, 50, 75, 100 and 300 mA with AC leakage type.
What current range does the NXBLE-32 cover?
Rated currents are 6, 10, 16, 20, 25 and 32 A.
Which standard does it follow?
CHINT lists IEC 61009-1 with CE and RoHS marks.
How is the NXBLE-32 mounted?
It mounts on a 35 mm TH35-7.5 DIN rail and fits IP40 distribution boards, with IP20 when mounted directly.
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