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FROM AND OPERATION RESTRAINT
According to international standard IEC61009, IEC60898 A Type,AC type residual current circuit breaker's below definition.
A type residual current circuit breaker:for any sudden bring to bear on or slow rise no-dc output component residual sine alternating current ensure trip's circuit breakerif the following 5 conditons.
NORMAL OPERATING CONDITIONS AND INSTALLATION CONDITIONS
1.Ambient max temperature can not up to 40 degree, minimum can not lower than minus 5 degree average temperature can not be higher than 35 degree in 24 hours
2.Install place's height can not be higher than 2000M.
3.When install place's temperature is max 40 degree, atmosphere compratively humidity don't outstrip 50% if the temerature is lower, the atmosphere comparatively hunmidity can be higher in the most wet month, average max comparatively humidity don't outstrip 90% moreover this month's average temperature don't be higher than 25 degree than 25 degree as a result of temperature cangeshappen to surface of products condensation condition must take steps class of pollution is 2.
4.Install type is Ⅱ
5.Install type ⅡⅢ
6.Install place's external magnet any orientation can not outstrip I and mgnet's times
7.Residual current circuit breaker usually should install perpendicular handle upwards is power-on place.
8.Install place should be no much ballistic and vibration.
| Breadth | Number pole | ||||
| 1N | 2P | 3P | 3N | 4P | |
| L1 | 35.5±0.5 | 35.5±0.5 | 46.5±0.5 | 58±0.5 | 58±0.5 |
| Lmax | 54 | 72 | 100 | 112 | 130 |
Residual current circuit breaker OLBL7E-B(refer as breaker), is a product of our company which has assimilated high technique from foreign countries and developed by ourselves. Breaker is suitable to be applied in AC 50HZ with 400V rating voltage, and no more than 50A rating current. neutral conductor. It is mainly for human protection from electric shock as well as security to buildings and electrical circuits. More than this, breaker can prevent hazard of fire cause by ground fault current from damaged insulators.
Our OLBL7E-B circuit breaker has satisfied IEC61009-1;1996,GB16917.1 in Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses(RCBO) Chapter one: General Rules,and other standard requirements.
1. ASSORTMENT SPECIFICATION
| Frame size rated current In(A) | Pole number | Add neutral conducto | Rated current In(A) | Rated residual operation current I△n(mA) | I△no (mA) | Rated short-circuit connect and break capability | Rated residual switch on and breaking capacity(A) | Overcurrent instant trip type | ||
| Voltage(V) | make-break capacity | COSΦ | ||||||||
| 50 | 1 | N | 6, 10, 16, 20, 25, 32, 40, 50 | 30, 50, 100, 300 | 15, 25, 50, 150 | 230 | 6000 | 0.5 | 3000 | B, C, D, D type In to 40A |
| 2 | ||||||||||
| 3 | N | 400 | ||||||||
| 40 | 1 | N | 6, 10, 16, 20, 25, 32, 40 | 30, 50 | 15, 25 | 230 | 6000 | 0.5 | 3000 | B, C, D, D type In to 20A |
2. RESIDUAL CURRENT CIRCUIT BREAKER RESIDUAL CURRENT BREAKER TIME
| Type | I△n(mA) | In(A) | Max(residual current)breaker tim(s) | ||
| I△n | 2I△n | 5I△n | |||
| Indirect contact | >30 | No value | 0.3 | 0.15 | 0.04 |
| Direct contact | ≤30 | No value | 0.1 | 0.1 | - |
3. OVERCURRENT INSTANT
| Trip protection characteristic | B | C | D | Trip Time | |
| Thermal Trip | I1 | 1.13In | 1.13In | 1.13In | ≥1h |
| I2 | 1.45In | 1.45In | 1.45In | <1h | |
| Magnetic Trip | I4 | 3In | 5In | 10In | ≥0.1s |
| I5 | 5In | 10In | 50In | <0.1s | |
Verification of the correct operation at residual
currents with d.c. Components
Table Tripping current ranges for type ARCBO
| Angle | Tripping current | |
| Lower limit | Upper limit | |
| 0° | 0.35 I△n | 1.4 I△n or 2 I△n (subciause 5.3.12) |
| 90° | 0.25 I△n | |
| 135° | 0.11 I△n | |
4. Residual current circuit breaker except residual current protection function, it can be network fault arouse voltage too high to protec.Overvoltage setting value Uvo=280V, setting range Uvo±5%(just use in rated circuit voltage AC 230V).
5. Residual current circuit breaker attchment complate.Can take shunt release, AUXILIARYCONTACTS, auciliary contact, and ALARM CONTACTS.