suntree SM8 HPV Series DC Molded Case Circuit Breaker for Photovoltaic User Guide

suntree SM8 HPV Series DC Molded Case Circuit Breaker for Photovoltaic

Product Information:

SM8 HPV series DC Molded Case Circuit Breaker for Photovoltaic

The SM8 HPV series DC Molded Case Circuit Breaker is a dedicated circuit breaker designed for use in DC grid circuits in photovoltaic (PV) systems. It is suitable for circuits with a rated voltage of DC1250V~DC1500V and a rated operating current of 400A~630A. This circuit breaker provides overload long- time delay and short-circuit instantaneous protection functions, ensuring the distribution of electric energy and protecting lines and power supply equipment from overload, short circuit, and other fault hazards.

The SM8 HPV series DC Molded Case Circuit Breaker complies with the following standards:

• IEC 60947-1: Low-voltage switchgear and controlgear – Part 1: General
• IEC 60947-2: Low-voltage Switchgear and Controlgear – Part 2: Circuit breakers
• GB 14048.1: Low-voltage switchgear and controlgear – Part 1: General
• GB 14048.2: Low-voltage Switchgear and Controlgear – Part 2: Circuit breakers

Normal Operational Conditions

When installing and using the SM8 HPV series DC Molded Case Circuit Breaker, the following conditions should be considered:

• The altitude of the installation site should not exceed 2,000m.
• The allowable ambient temperature should not exceed +50°C or be lower than -5°C. If the temperature exceeds +40°C, the capacity may be reduced, and consultation with the manufacturer is required.
• Pollution degree: 3
• Installation category: Class III
• The magnetic field at the installation location should not exceed 5 times the earth’s magnetic field in any direction.
• The medium should be non-explosive, and there should be no gas or conductive dust that can corrode metals and damage insulation.
• The installation place should be free from wind and snow erosion.
• Installation conditions:
  • The circuit breaker can be installed horizontally or vertically.
  • There should be no obvious impact and vibration at the installation place, and it should not be installed in inflammable and explosive places.

Description of Model

The model SM8-630HPV is a DC Molded Case Circuit Breaker for Photovoltaic with the following specifications:

• Frame size: 630
• High voltage: H
• Special for PV power generation: PV
• Number of poles: 4
• Rated current: 400A~630A
• Rated operational voltage: DC1250V DC1500V
• Accessories code: See table for details
• Shunt release control voltage: DC24V/AC230V/AC400V

Specifications and Main Technical Parameters

The specifications and main technical parameters of the SM8-630HPV/4 circuit breaker are as follows:

Model| Rated current In (A)| Rated insulation voltage Ui (V)| Rated operational voltage Ue(V)| Flashover distance (mm)| Rated ultimate short- circuit breaking capacity (Icu) kA| Action current value of short-circuit instantaneous
release| Service life (times)
---|---|---|---|---|---|---|---
SM8-630HPV/4| 400, 500, 630| DC1500V| DC1250V / DC1500V| 100| 40kA (Ics=75% Icu), 30kA (Ics=100% Icu)| 6In| 5000

Note: Ics indicates the rated operating short circuit breaking capacity, and Icu indicates the rated limit short circuit breaking capacity. Please consult with the manufacturer for any special requirements.

User’s Guide
SM8 HPV series
DC Molded Case Circuit Breaker for
Photovoltaic

Suntree Electric Group Co., Ltd

Purpose and scope of use

With the development of the solar industry, solar PV plants with large installed capacities are also growing rapidly. People also put forward higher and higher requirements on the performance of the control and protection appliances equipped in large-scale PV plants. When the power of a PV plant exceeds a certain level, circuit breakers or switch-disconnector are required, especially for the protection and isolation of the inverter, which places new demands on low-voltage components. For this reason, we have developed a new generation of SM8 series DC circuit breakers for PV applications.
SM8-630HPV series PV dedicated DC circuit breaker (hereinafter referred to as circuit breaker) is used in DC grid circuits with rated voltage DC1250V~DC1500V and rated operating current 400A~630A.
This circuit breaker has overload long-time delay and short-circuit instantaneous protection functions. It is used to distribute electric energy and protect lines and power supply equipment from overload, short circuit and other fault hazards.

This circuit breaker complies with the standard: IEC 60947- 1 IEC 60947- 2
GB 14048. 1 Low-voltage switchgear and controlgear Part 1:

General

GB 14048. 2 Low-voltage Switchgear and Controlgear Part 2:
Circuit breakers

Normal operational conditions

1. The altitude of the installation site should not exceed 2,000m;

2. The allowable ambient temperature is not higher than + 50℃ and not lower than – 5℃; (when it exceeds + 40℃, the capacity is reduced for use, which must be negotiated with the manufacturer).

3. Atmospheric conditions: The relative humidity of the atmosphere should not exceed 50% at a surrounding temperature of 40°C.
   A higher relative humidity is allowed at lower temperatures, such as 90% at 20°C, taking into account the condensation that occurs on the product surface due to temperature changes;

4. Pollution degree: 3

5. The installation categories is Class III.

6. The magnetic field at the installation location should not exceed 5 times the earth’s magnetic field in any direction;

7. In a non-explosive medium, and there is no gas and conductive dust in the medium that can corrode metals and damage insulation;

8. Where there is no wind and snow erosion;

9. Installation conditions

10. Can be installed horizontally and vertically;

11. There should be no obvious impact and vibration at the installation place,and it should not be installed in inflammable and explosive places.

Description of model

Shunt release control voltage: DC24V/AC230V/AC400V

Specifications

Specifications and main technical parameters are shown in the table

Note: Ics indicates the rated operating short circuit breaking capacity Icu indicates the rated limit short circuit breaking capacity
Please consult with the manufacturer for any special requirements.

Ordering instructions

When ordering, please specify the model, name and rated current value of the molded case circuit breaker, as well as the quantity.

Example: SM8 – 630HPV 500A DC
Molded case circuit breakers, 50 units in quantity. Special product requirements are subject to negotiation.

Company commitment

On the premise that the user abides by the use and storage conditions and the seal of the product is intact, within 18 months from the date of production of the product, if the product is damaged or cannot be used normally due to manufacturing quality problems, the company is responsible for free repair or replacement. Beyond the warranty period,repairs are required at a cost. But the damage caused by the following circumstances, even within the warranty period also for paid repair:

1. Due to improper use, maintenance and storage;
2. Self-modification or improper maintenance;

4P product appearance and installation dimensions

Accessory installation

Suntree Electric Group Co., Ltd
Address Xinguang Industrial Zone, Liushi Town, Yueqing City, Zhejiang Province
Tel: +86-577-61788999
Fax: +86-577-62890578
Domestic service hotline: 400-021-6828
Website: www.xinchi.cc

References

• 物联网断路器-小型断路器-塑壳断路器-上海新驰电气有限公司

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