protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.

NB1-25H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection

Technical data of the network at the point considered:short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT  systems.

C curve (5-10In)

protection for resistive and inductive loads with low inrushcurrent.

D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing

(LV/LV transformers, breakdown lamps).

The post Miniature Circuit Breakers 2 pole-25Amp first appeared on Solar Energy Systems West Coast South Africa.

protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.

NB1-32H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection

Technical data of the network at the point considered:short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT  systems.

C curve (5-10In)

protection for resistive and inductive loads with low inrushcurrent.

D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing

(LV/LV transformers, breakdown lamps).

The post Miniature Circuit Breakers 2 pole- 32Amp first appeared on Solar Energy Systems West Coast South Africa.

protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.

NB1-40H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection

Technical data of the network at the point considered:short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT  systems.

C curve (5-10In)

protection for resistive and inductive loads with low inrushcurrent.

D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing

(LV/LV transformers, breakdown lamps).

The post Miniature Circuit Breakers 2 pole- 40Amp first appeared on Solar Energy Systems West Coast South Africa.

protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.

NB1-50H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection

Technical data of the network at the point considered:short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT  systems.

C curve (5-10In)

protection for resistive and inductive loads with low inrushcurrent.

D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing

(LV/LV transformers, breakdown lamps).

The post Miniature Circuit Breakers 2 pole- 50Amp first appeared on Solar Energy Systems West Coast South Africa.

It has a maximum voltage rating of 1000V, making it ideal for use in a wide range of PV applications.

This isolator features a compact, space-saving design that makes it easy to install in almost any location, and it’s made from durable materials that ensure long-lasting performance.

The post DC Isolator 63A 4P first appeared on Solar Energy Systems West Coast South Africa.

It has a maximum voltage rating of 500V, making it ideal for use in a wide range of PV applications.

This isolator features a compact, space-saving design that makes it easy to install in almost any location, and it’s made from durable materials that ensure long-lasting performance.

The post DC Isolator 63A 2pole first appeared on Solar Energy Systems West Coast South Africa.

protection of circuits against short-circuit currents,protection of circuits against overload currents,switch,isolation.

NB1-63H circuit-breakers are used in domestic installation, as well as in commercial and industry electrical distribution systems.

1.2 Selection

Technical data of the network at the point considered:short-circuit current at the circuit-breaker installation point, which must always be less than the breaking capacity of this device,network normal voltage.

Tripping curves:

B curve (3-5In)

protection for people and big length cables in TN and IT  systems.

C curve (5-10In)

protection for resistive and inductive loads with low inrushcurrent.

D curve(10-14In)

protection for circuits which supply loads with high inrush current at the circuit closing

(LV/LV transformers, breakdown lamps).

The post Miniature Circuit Breakers 2 pole- 63Amp first appeared on Solar Energy Systems West Coast South Africa.

1. General

1.1 Electric ratings: 230V, AC50/60Hz;

1.2 Rated insulation voltage Ui: 500V;

1.3 Protection grade: IP20

1.4 Rated operational current: ≤20mA

1.5 Life: LED≥30000h;

1.6 Standard: IEC/EN 60947-5-1

2. Operating Conditions

2.1 Ambient temperature: -5℃~+40℃, average temperature in 24 hours not exceed +35℃;

2.2 Altitude: ≤ 2000m;

2.3 Air conditions: At mounting site, relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃. Special measures should be taken to occurrence of dews;

2.4 Mounting category: Ⅱ, Ⅲ;

2.5 Pollution grade: Ⅱ;

2.6 Mounting mode: TH35-7.5 standard rail, inclination between mounting and vertical plane not exceed 5°

3. Wirng

2 Cross section area of the conductor is 1.0mm , and tightening torque should be 0.8N•m

The post Indication Lamp Red+Green first appeared on Solar Energy Systems West Coast South Africa.

1. General

1.1 Electric ratings: 230V, AC50/60Hz;

1.2 Rated insulation voltage Ui: 500V;

1.3 Protection grade: IP20

1.4 Rated operational current: ≤20mA

1.5 Life: LED≥30000h;

1.6 Standard: IEC/EN 60947-5-1

2. Operating Conditions

2.1 Ambient temperature: -5℃~+40℃, average temperature in 24 hours not exceed +35℃;

2.2 Altitude: ≤ 2000m;

2.3 Air conditions: At mounting site, relative humidity not exceed 50% at the max temperature of +40℃, higher relative humidity is allowable under lower temperature. For example, RH could be 90% at +20℃. Special measures should be taken to occurrence of dews;

2.4 Mounting category: Ⅱ, Ⅲ;

2.5 Pollution grade: Ⅱ;

2.6 Mounting mode: TH35-7.5 standard rail, inclination between mounting and vertical plane not exceed 5°

3. Wirng

2 Cross section area of the conductor is 1.0mm , and tightening torque should be 0.8N•m

The post Indication Lamp Red/Green first appeared on Solar Energy Systems West Coast South Africa.

and short circuit protection. When any personal electric shock occurs or the circuit leakage current exceeds the predetermined value, the residual current operated circuit breaker can automatically cut off the power supply in a very short period of time, so that the safety of persons and electrical equipment can be protected. The residual current operated circuit breaker can be used for infrequent conversion of lines under normal conditions, and applied under occasions such as industrial, and commercial, high-rise buildings and residential houses.

The post Miniature Earth Leakage CB 1P+N 25A, 30mA first appeared on Solar Energy Systems West Coast South Africa.