Can a 1P N circuit breaker have a leakage attachment? Isn t it a 2P to be brought?

1P+N leakage, is not allowed to be used at present, the design institute drawings, but also dare not use this specification, the state now mandates that 2P must be used, both the N phase must be disconnected in the case of leakage, DPN is Schneider's patented product, this design is very special, other factories outside are currently playing DPN this model, but they are all rubbing the ball, Schneider is more real, these are all counterfeit products. But Schneider's DPN series is more expensive than the 2P of the C65, which is not cost-effective. So leakage switch, directly choose 2P, regular companies do not have 1P with leakage this specification, you check Zhengtai, Tianzheng, Delixi, people, and other companies, DZ47LE leakage, are 2P starts, 1P are made by private small factories.

Security is not guaranteed at all.

1P+N and 2P circuit breakers can be equipped with leakage accessories, as for the brand from the model, it is more difficult, this thing can be a copycat, besides, for example, DZ47 products are already very mature, and every manufacturer calls this model.

1P+N is also leakage, and it is used in the same way as 2P leakage. But 2P leakage is a little better.

The models of domestic brands are all DZ47LE, but I can't see any brand. Some imported models are different. Now the domestic ones are very easy to use, support the domestic products!

The air switch is different: the 1P+N leakage circuit breaker is a 1P air switch; The 2P leakage circuit breaker is a two-pole two-wire leakage protector, a 2P air switch and a leakage module.

The disconnection circuit is not connected: when the leakage current is leaked in 1P+N, the leakage module drives the air switch to trip, and the live wire is disconnected, but the neutral wire is not opened, because only the live wire has the function of thermal and magnetic tripping, which can only protect and control the live wire; When the leakage is 2P, the leakage module drives the air switch to trip, and at the same time breaks the ** line and the zero line, all of which have the function of thermal and magnetic tripping.

The width of the leakage module is different: the width of the 2P with leakage module is 36mm, and the width of the leakage circuit breaker of 1P+N is 18mm.

The rated voltage is different: 1P+N rated voltage is 230V, 2P is 400V.

Phase electricity that can be connected: 2P can be connected to 2 phase electricity, and 1P+N can only be connected to single-phase electricity.

Leakage circuit breaker 1P is an air circuit breaker that can only disconnect and control the live wire. Only 1p+n

can be made into a leakage protection switch, and it is also only a broken wire. 2p is to disconnect the neutral and live wires at the same time, or to disconnect both live wires at the same time.

There are two kinds of 2P: 1. With leakage protection. 2. It's just that the air circuit breaker does not have leakage protection. In addition to this, there is also a distinction between rated operating voltages.

Leakage circuit breaker definition: A switch that can automatically act when the leakage current in the circuit exceeds a predetermined value. Commonly used leakage circuit breakers are divided into two types: voltage type and current type, and current type is divided into electromagnetic type and electronic type.

Leakage circuit breakers are used to prevent electric shock to people, and should be selected according to the different requirements of direct contact and indirect contact protection.

Leakage circuit breaker effect:

For miniature circuit breakers, 1P+N, 1P, and 2P are generally used as on-off control of single-phase appliances, but the effects are different.

P--- single-pole circuit breaker, with thermomagnetic tripping function, only control the live wire (phase wire), modulus 18mm;

P+N--- single-pole+N circuit breaker, which controls the live wire and neutral wire at the same time, but only the live wire has the function of thermal and magnetic tripping; The module is also 18mm;

P--- single-phase 2-pole circuit breaker, which controls the live wire and neutral line at the same time, and both have the function of thermomagnetic tripping, and the modulus is 2*18mm=36mm.

The disadvantage is that only the live line can be controlled, while the neutral line is straight-through; In this case, if the zero live wire is reversed, then in the event of leakage or other accidents in the circuit, even if the leakage warrant sends a command to trip the switch, the live wire is still alive and very dangerous.

The difference between 1P+N and 2P+N for leakage circuit breakers.

1. The air switch is different.

The 1P+N leakage circuit breaker is a 1P air switch.

The 2P+N leakage circuit breaker is a two-pole two-wire leakage protector, a 2P air switch and a leakage module.

2. The disconnection circuit is different.

When 1P+N leakage, the leakage module drives the air switch to trip, and the live wire is disconnected, but the neutral wire is not opened, because only the live wire has the function of thermal and magnetic tripping, which can only protect and control the live wire.

When 2P+N leakage, the leakage module drives the air switch to trip, and at the same time breaks the ** line and the neutral line, all of which have the function of thermal and magnetic tripping.

3. The rated voltage is different.

The rated voltage is 230V for 1P+N and 400V for 2P+N.

Leakage circuit breaker operating conditions.

1. The upper limit of the ambient air temperature shall not exceed 40, the lower limit shall not be less than 5, and the average temperature value of 24h shall not exceed 35;

2. The altitude of the installation site shall not exceed 2000m;

3. The relative humidity of the atmosphere does not exceed 50% when the ambient air temperature is 40, and a higher relative humidity can be allowed at a lower temperature, such as 90% at 20 hours, and appropriate measures should be taken for the occasional condensation due to temperature changes;

4. Pollution level: level 2;

5. Installation category: class and class;

6. The external magnetic field of the installation site should not exceed 5 times of the geomagnetic field in any direction;

7. General vertical installation, with a tolerance of 2° in any direction;

8. There should be no significant shock and vibration at the installation site.

Leakage circuit breakers are available in 1P N and 2P circuits, both of which are used in single-phase 250V circuits for leakage protection, and there is no 2P N.

1P+N leakage only the live wire through the circuit breaker, the zero line does not pass through the circuit breaker, the leakage protection in and out of the line are marked with the word N, the zero line must be connected to the N terminal, if the connection is wrong, the leakage trip only disconnects the zero line, the line is still live, it is very dangerous.

The 2P leakage circuit breaker is that both the live wire and the neutral line pass through the circuit breaker, and the two wires are disconnected at the same time after tripping.

The leakage circuit breaker of 1P+N is a 1P air switch, the zero line is straight, there is no switch, and then a leakage protection module is combined together, the live wire and the neutral line are in and out of the combination switch together, and the leakage module drives the air switch to trip when leakage, and the live wire is disconnected, but the zero line is not opened, because only the live wire has the function of thermal and magnetic tripping, which can only protect and control the live wire. When using, the zero wire must be connected according to the mark.

The 2P leakage circuit breaker is a two-pole two-wire leakage protector, a 2P air switch and a leakage module. When leakage, the leakage module drives the air switch to trip, and at the same time breaks the ** line and the zero line, all of which have the function of thermal and magnetic tripping.

The width of the 2P leakage module is 36mm, and the width of the 1P+N leakage circuit breaker is 18mm.

In addition, the rated voltage of 1P+N is 230V, 2P is 400V, 2P can be connected to 2 phases of electricity, and 1P+N can only be connected to single-phase electricity.

When 1P+N is turned off, only one live wire is broken, and the zero line can not be disconnected when it is straight-through, and when 2P+N is disconnected, both wires are disconnected.

1P+N is a style of leakage circuit breaker. There are two kinds of 1P+N circuit breakers, one is an ordinary circuit breaker without leakage, and the other is a leakage circuit breaker with leakage, and these two types of circuit breakers should be clearly distinguished.

The ** above is an ordinary 1P+N circuit breaker without leakage. The incoming and outgoing ends of the 1P+N circuit breaker have two terminals each, one of the terminals is marked, marked with the letter N, N represents the neutral line in the circuit, so the identified terminals are connected to the zero wire, and the other terminal is quietly used to connect the live wire.

The difference between circuit breaker 1p and 2p.

The circuit breakers that can be seen in the family are generally only 1p and 2p, 1p, 2p is also called 1 level 2 levels, each level corresponds to two upper and lower binding posts, and the width of each level is millimeters.

The biggest difference between 1P and 2P is that a 1P circuit breaker can only control the live wire, while a 2P circuit breaker can control the neutral wire and the live wire. That is, when the circuit breaker is disconnected, the zero line of the 2P circuit breaker and the Qing Hail live line are disconnected from Yuyunfan, but the zero line of the 1P circuit breaker is still not disconnected.

Summary. Hello, the air switch is different: the 1P+N leakage circuit breaker is a 1P air switch; The 2P leakage circuit breaker is a two-pole two-wire leakage protector, a 2P air switch and a leakage module.

The disconnection circuit is not connected: when the leakage current is leaked in 1P+N, the leakage module drives the air switch to trip, and the live wire is disconnected, but the neutral wire is not opened, because only the live wire has the function of thermal and magnetic tripping, which can only protect and control the live wire; When the leakage is 2P, the leakage module drives the air switch to trip, and at the same time breaks the ** line and the zero line, all of which have the function of thermal and magnetic tripping.

The difference between 1P+N and 2P leakage circuit breakers.

Hello, the air switch is different: the 1P+N leakage circuit breaker is a 1P air switch; The 2P leakage circuit breaker is a two-pole two-wire leakage protector, a 2P air switch and a leakage module. Wheel Wang disconnect circuit is not working:

When 1P+N leakage, the leakage module drives the air switch to trip, and the live wire is disconnected, but the neutral wire is not opened, because only the live wire has the function of thermal and magnetic tripping, which can only protect and control the live wire. When the leakage module of 2P leakage is used, the air switch is tripped, and the first line and zero line are broken when the eggplant is tung group, all of which have the function of thermal and magnetic tripping.

The width of the leakage module is different: the width of the 2P leakage module is 36mm, and the width of the leakage circuit breaker of 1P+N is 18mm. The rated voltage is different:

The rated voltage of 1P+N is 230V, and 2P is 400V. Phase electricity that can be connected: 2P can be connected to 2 phases of electricity and 1P+N can only be connected to single-phase electricity.

Pro-give a suggestion you can 1Before installation, check whether the data on the nameplate of the leakage circuit breaker is consistent with the requirements for use. 2.

Do not install too close to the high-current bus and AC contactor. 3.After the installation of the leakage circuit breaker, the original low-voltage line or the original grounding protection measures of the equipment cannot be removed, and the neutral wire on the load side of the circuit breaker shall not be shared with other circuits to avoid misoperation.

4.A strict distinction must be made between neutral and protective grounding wires during installation. The neutral wire of the three-pole four-wire and four-pole leakage circuit breaker should be connected to the circuit breaker, and the ruler wire of the middle cover section of the circuit breaker can no longer be used as a high-protection grounding wire, nor can it be repeatedly grounded or connected to the shell of electrical equipment.

The protective ground wire shall not be connected to the leakage circuit breaker. Finally, after the installation, the test button should be operated to check whether the leakage circuit breaker can operate reliably. Under normal circumstances, it should be tested more than three times, and it can be burned normally.