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VF008 DC Circuit Breaker
1. General
1.1 Standard: IEC/EN 60947-2, RoHS;
1.2 Rated voltage up to 1000V, Rated current up to 63A;
1.3 Protection of circuits against overload currents;
1.4 Protection of circuits against short- circuit currents;
1.5 VF008 DC circuit-breakers are used in communication systems and PV DC systems.
2. Features
2.1 Excellent breaking capacity
2.2 Double connection function of lead wire and bus bar
2.3 Stored energy operation, fast closing, long service life
2.4 Convenient installation, disassembly
2.5 Contact on-off indication, higher security
2.6 Green environmental protection and energy saving
3. Operating conditions
3.1 Ambient temperature: -35℃ - + 70℃(Refer to 4.3)
3.2 The atmosphere condition: ≤95%
3.3 Pollution degree: ll
3.4 Altitude: ≤2000m(if exceed 2000m,Refer to4.4)
4. Technical data
4.1 Classification
4.1.1 Rate Current In: 1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A, 32A. 40A, 50A, 63A
4.1.2 Number of poles: 1P, 2P, 4P
4.1.3 Tripping curves: C Type, (7-10)In
4.2 Parameters
4.2.1 Rated breaking capacity Icu
| Rated current In (A) | Number of poles | Rated voltage Ue (V) | Rated breaking capacity Icu (A) |
| 1-63 | 1 | 250 | 6000 |
| 2 | 500 | 6000 | |
| 4 | 1000 | 6000 |
4.2.2 Electrical and mechanical life
a. Electrical life: ＞1500
b. Mechanical life: ＞20,000
4.2.3 Rated impulse withstand voltage Uimp: 4KV
4.2.4 (28-32)℃ ambient temperature over-current protection features.
| Test | Test current | Initial state | Time limit for tripping or not tripping | Expected result | Remark |
| a | 1.05In | Cold state | t≤1h | Not tripping | |
| b | 1.30In | Right after test number a | t＜1h | Tripping | The current is rising within 5s |
| c | 7In | Cold state | t≤0.2s | Not tripping | |
| d | 10In | Cold state | t＜0.1s | Tripping |
Note: The terminology”Cold state”means that the test is performed at the base calibration temperature with no load prior to the test.
4.3 Temperature derating
| Rated current (A) | Temperature compensation coefficient under various operational temperature. | |||||||||||
| -35℃ | -30℃ | -20℃
| -10℃
| 0℃
| 10℃
| 20℃
| 30℃
| 40℃
| 50℃
| 60℃
| 70℃
| |
| 1 | 1.3 | 1.26 | 1.23 | 1.19 | 1.15 | 1.11 | 1.05 | 1 | 0.96 | 0.93 | 0.88 | 0.83 |
| 2 | 2.6 | 2.52 | 2.46 | 2.38 | 2.28 | 2.2 | 2.08 | 2 | 1.92 | 1.86 | 1.76 | 1.66 |
| 3 | 3.9 | 3.78 | 3.69 | 3.57 | 3.42 | 3.3 | 3.12 | 3 | 2.88 | 2.79 | 2.64 | 2.49 |
| 4 | 5.2 | 5.04 | 4.92 | 4.76 | 4.56 | 4.4 | 4.16 | 4 | 3.84 | 3.76 | 3.52 | 3.32 |
| 6 | 7.8 | 7.56 | 7.38 | 7.14 | 6.84 | 6.6 | 6.24 | 6 | 5.76 | 5.64 | 5.28 | 4.98 |
| 10 | 13.2 | 12.7 | 12.5 | 12 | 11.5 | 11.1 | 10.6 | 10 | 9.6 | 9.3 | 8.9 | 8.4 |
| 13 | 17.16 | 16.51 | 16.25 | 15.6 | 14.95 | 14.43 | 13.78 | 13 | 12.48 | 12.09 | 11.57 | 10.92 |
| 16 | 21.12 | 20.48 | 20 | 19.2 | 18.4 | 17.76 | 16.96 | 16 | 15.36 | 14.88 | 14.24 | 13.44 |
| 20 | 26.4 | 25.6 | 25 | 24 | 23 | 22.2 | 21.2 | 20 | 19.2 | 18.6 | 17.8 | 16.8 |
| 25 | 33 | 32 | 31.25 | 30 | 28.75 | 27.75 | 26.5 | 25 | 24 | 23.25 | 22.25 | 21 |
| 32 | 42.56 | 41.28 | 40 | 38.72 | 37.12 | 35.52 | 33.93 | 32 | 30.72 | 29.76 | 28.16 | 26.88 |
| 40 | 53.2 | 51.2 | 50 | 48 | 46.4 | 44.8 | 42.4 | 40 | 38.4 | 37.2 | 35.6 | 33.6 |
| 50 | 67 | 65.5 | 63 | 60.5 | 58 | 56 | 53 | 50 | 48 | 46.5 | 44 | 41.5 |
| 63 | 83.79 | 81.9 | 80.01 | 76.86 | 73.71 | 70.56 | 66.78 | 63 | 60.48 | 58.9 | 55.44 | 52.29 |
4.4 Altitude derating
| Tripping type | Rated current In (A) | Current correction factor | For example | ||
| ≤2000 | 2000~3000m | ≥3000m | |||
| C | 1, 2, 3, 4, 6, 10, 13, 16, 20, 32, 40, 50, 63 | 1 | 0.9 | 0.8 | Rated current of 10A products rated current derating 2500m: 0.9×10=9A |
4.5 Curves shown in Figure 1
4.6 Wiring: Apply to 25 mm wire connection terminals Tightening torque 2.5N·m
| Rated current In (A) | Copper wire nominal cross sectional area(mm²) |
| 1~6 | 1 |
| 10 | 1.5 |
| 13, 16, 20 | 2.5 |
| 25 | 4 |
| 32 | 6 |
| 40, 50 | 10 |
| 63 | 16 |
4.7 Each pole power consumption of the circuit breaker
| Rated current In (A) | Copper wire nominal cross sectional area(mm²) |
| 1~6 | 1 |
| 10 | 1.5 |
| 13, 16, 20 | 2.5 |
4.8 DC application wiring diagram shown in Figure 2
Wiring diagram description:
1. 〇+Positive 〇-Negative
2. L+ Load positive L- Load negative
3. Prohibit power reversed
4. Rated voltage: 1P: 250V, 2P: 500V, 4P: 1000V
5. Strictly forbidden to remove the four poles products of sealing plug wiring operation.
5. Overall and mounting dimensions (mm)
UL489 Circuit Breaker is a mcb device designed to protect electrical circuits from overcurrent, overload and short circuit. It offers a wide range of 1P, 1P+N, 2P, 3P, 3P+N, 4P poles to meet different requirements. The trip type of this mcb is thermal-magnetic with the reference temperature setting of 30℃. It has a wide operating temperature range from -5℃ to 40℃ and is mounted on DIN Rail EN 60715 (35mm) by means of fast clip device. This UL489 Circuit Breaker is the ideal choice for reliable and secure electrical circuit protection.
The HAROK UL489 Circuit Breaker is a mini circuit breaker (MCB) that is designed to protect electrical circuits from overload and short circuit. It complies with the IEC/EN 60947-2 and UL489 standards, and is available in 1P, 1P+N, 2P, 3P, 3P+N, and 4P configurations. The rated voltage Ue is 120V, 230/400V ~ 240/415V, and the thermo-magnetic release characteristic is B, C, or D. This UL489 Circuit Breaker is ideal for applications that require reliable protection against overcurrents in residential, commercial, and industrial settings. The robust design and superior performance make it the perfect choice for safety and protection.
| Parameter | Specification |
|---|---|
| Frequency Rating | 50/60 Hz |
| Storage temperature | -25℃ to 70℃ |
| Mounting Type | On DIN Rail EN 60715 (35mm) By Means Of Fast Clip Device |
| Thermo-magnetic release characteristic | B, C, D |
| Number of Poles | 1P, 1P+N, 2P, 3P, 3P+N, 4P |
| Rated voltage Ue | 120V, 230/400V ~ 240/415V |
| Electrical life | 10,000 |
| Rated Current | 1A, 2A, 3A, 4A, 6A, 10A, 15A, 16A, 20A, 25A, 30A, 32A, 40A, 45A, 50A, 60A, 63A |
| Protection Type | Overload And Short-Circuit |
| Insulation voltage Ui | 500V |
The UL489 Circuit Breaker is packaged in a cardboard box. The box is designed to protect the Circuit Breaker from bumps and drops during shipping. The box is also labeled with a barcode, to make the shipping process easier. The Circuit Breaker is shipped via courier services, such as UPS, FedEx, or DHL.
The Circuit Breaker is also shipped with appropriate safety measures. The Circuit Breaker is covered with bubble wrap to provide additional protection against shock and impact. The Circuit Breaker is also packaged in a waterproof bag to protect against moisture.
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