HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1 Series Miniature Circuit Breaker
HX1

IEC60947-2 IEC60898 MCB | 0.5‑63A 1P‑4P B/C/D/F Curves

The HX1 Series Miniature Circuit Breaker is a high‑performance protection device compliant with IEC60947-2 and IEC60898 standards. Rated current from 0.5A to 63A, available in 1P, 1P+N, 2P, 3P, 3P+N, and 4P configurations. Supports B, C, D, and F trip curves to meet residential, commercial, and industrial application requirements. 35mm DIN rail mounting, IP20 protection. Engineered for reliable overload and short‑circuit protection in low‑voltage electrical systems.

Describe Display

The HX1 Series Miniature Circuit Breaker is a high-performance, IEC 60988 and IEC 60947-2 compliant protection device engineered for low-voltage electrical systems.

It delivers reliable defense against overload and short-circuit faults, with a wide rated current range of 0.5A to 63A and flexible pole configurations (1P, 1P+N, 2P, 3P, 3P+N, 4P) to match diverse application needs. The HX1 series is ideal for residential distribution boards, commercial buildings, industrial control panels, and infrastructure projects requiring certified overcurrent protection.

Normal Operating & Installation Conditions

  • Ambient temperature: -5°C to +40°C (24‑hour average not exceeding +35°C) per IEC60898.
  • Altitude: ≤ 2000m.
  • Relative humidity: ≤ 95% (non‑condensing).
  • Pollution degree: Level 2 (typical for protected indoor environments).
  • Installation type: 35mm DIN rail (top‑hat rail).
  • Terminal type: Pin type — compatible with cage clamp terminals and busbar systems.
  • Storage temperature: -25°C to +70°C.

Quality & Compliance

  • Certified to IEC60947-2 & IEC60898 — double‑certified for industrial and residential applications.
  • Thermal‑magnetic trip technology — precise overload protection (thermal) and instantaneous short‑circuit protection (magnetic).
  • Positive contact indication — clear ON/OFF status on the toggle handle for safe operation.
  • High short‑circuit breaking capacity — up to 6kA suitable for most low‑voltage networks.
  • Temperature compensation — reduces nuisance tripping in high‑temperature environments (compensation table provided).
  • RoHS compliant — environmentally friendly materials.
  • Manufactured under ISO 9001:2015 quality management system.
Specifications

Technical Specifications

Standards Compliance IEC 60988, IEC 60947-2
Protection Functions Overload protection (thermal), short‑circuit protection (magnetic)
Rated Current (In) 0.5A, 1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Rated Voltage 1P: 230/400V AC, 50/60Hz; 2P/3P/4P: 400/500V AC, 50/60Hz
Breaking Capacity 4.5kA / 6kA (depending on model)
Characteristic Curves (Trip Types) B type: (3‑5)×In; C type: (5‑10)×In; D type: (10‑20)×In; F type: (1.13,1.45)×In (thermal)
Number of Poles 1P, 1P+N, 2P, 3P, 3P+N, 4P
Trip Type Thermal‑magnetic release
Terminal Type Pin type
Terminal Capacity 0.5A‑25A: 16mm² flexible / 25mm² rigid; 25A‑63A: 25mm² flexible / 35mm² rigid
Degree of Protection IP20
Installation 35mm DIN rail
Width per pole 17.8mm per pole

Electrical & Mechanical Endurance

Electric Life 4,000 operations (240/h for 0.5‑32A; 120/h for 40‑63A)
Mechanical Life 10,000 operations (240/h for 0.5‑63A)

Wiring Data & Tightening Torque

Rated Current (A) Cross‑sectional Area (mm²) Tightening Torque (N·m)
1‑6 1 2
10 1.5 2
15(16), 20 2.5 2
25 4 2
32 6 2
40, 50 10 2
60(63) 16 2

Overall & Mounting Dimensions

HX1 MCB overall and mounting dimensions

Time‑Current Characteristic Curves

HX1 MCB trip curves

Temperature Compensation Correction Table

In (A) -10℃ 0℃ 10℃ 20℃ 30℃ 40℃ 50℃ 55℃ 60℃
1~6 1.20 1.14 1.09 1.05 1.00 0.96 0.80 0.75 0.70
10~32 1.18 1.12 1.08 1.04 1.00 0.96 0.92 0.88 0.84
40~60 1.16 1.12 1.08 1.03 1.00 0.90 0.87 0.83 0.80

Note: For ambient temperatures above 30°C, apply the appropriate compensation coefficient to select the correct current rating. For hot environments, use a derated MCB or choose a higher current rating.

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