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Product Features

Circuit Protectors

These are mostly used for protection when protection with an MCCB is not possible, such as on low capacity control circuits, heaters, motors, solenoid valves, transformers and electronic circuits. They make it possible to reduce the space required for the equipment and various control circuits such as the control panel. There are detailed differences in the types of rated current available and the lineup includes multiple over current operation characteristics.

Features

1. An opening/closing type compact terminal cover is included as standard

cover

finger protection

  • Finger protection is available due to the opening/closing type compact terminal cover and mark tube insulation!
    (IP20 class from front direction (TÜV certified))
  • Additional finger protection from the wiring insertion direction.

terminal

  • Opening and closing is possible with one touch, so the checking of the terminal part at the panel shipping and witnessed inspections has been made easier.
  • The checking of the terminal part during maintenance has been made easier.

mark tube

  • Even with the terminal cover closed, the mark tube symbols are not hidden and can be confirmed with one glance.

terminal cover closed

  • Even with the terminal cover closed, it is possible to perform insulation resistance measurement and continuity inspections.

2. Wide variety of tripping methods

The lineup includes a wide variety of operation characteristics (instantaneous type, high-speed type, medium speed type, low speed type, medium speed type with inertial delay and low speed type with inertial delay), so it is possible to select the type suitable for the protection device.

3. Large type terminal cover (Component sold separately)

terminal cover (large type)

Large type terminal covers have been prepared as an option for bare solderless terminals.
Installation in contact with other devices has been made possible when the terminal cover is attached.

4. AC and DC common type

It is a type for use on both AC and DC, so it can be used as it is for any circuit at or below 250 VAC or 65 VDC. Furthermore, when items are held in inventory, in addition to reducing the storage space, the management work is reduced and there is no mistaken arrangement for AC and DC.

5. Reduced space requirements

The width per pole is extremely narrow and compact at just 17.5 mm per pole.
This makes a particularly large contribution to the reduction of the space required when the use is in large quantities.

Lineup

appearance

ModelCP30-BACP30-HU
Number of poles123123
Rated current (A)0.1 0.25 0.3 0.5 1 2 3 5 7 10 15 20 300.1 0.25 0.3 0.5 1 2 3 5
Rated
short-
circuit
capacity
(kA)
UL 1077
CSA C22.2
No.235
Rated
voltage
AC (V)250250
DC (V)6512565125
AC2.5kA at 250V2.5kA at 250V10kA at 250V
DC2.5kA at 65V2.5kA at 125V10kA at 65V10kA at 125V 
IEC 60934
EN 60934
GB 17701(*3)
(Icn)
Ui (V)250250
AC2.5kA at 230V2.5kA at 230V
10kA at 120V
10kA at 230V
DC2.5kA at 60V2.5kA at 120V10kA at 65V10kA at 120V 
IEC 60947-2
EN 60947-2
JIS C 8201-2-1
Ann.1 (Icu/Ics)
Ui (V)250250
AC2.5/2.5kA at 230V2.5/2.5kA at 230V
10/10kA at 120V
10/10kA at 230V
DC 2.5/2.5kA at 120V10/10kA at 60V10/10kA at 120V 
AC/DC common usecommon-(*1)common-(*1)
Mode of trippingInstantaneous type(I);
Medium type(M), (MD);
Slow type(S), (SD);
Fast type(F)(*2)
Instantaneous type(I);
Medium type(M), (MD);
Slow type(S)
Body mounting methodIEC 35mm rail mountingIEC 35mm rail mounting

 *(1) The 3-pole products are for AC use only.
 (2) Contact us for operating characteristics other than those mentioned above.
 (3) CP30-BA only.

Internal accessories

Auxiliary switch (AX)

Operates combined with the main circuit operating mechanism to electrically retrieve the ON/OFF status of protector.

Alarm switch (AL)

Operates combined with the main circuit operating mechanism to electrically retrieve the tripping status of protector.

Remarks: 

  • (1) When the handle of CP30-BA is constrained in the ON status, it does not issue the alarm signal even if it is tripped.
  • (2) The alarm switch will be reset when the body is reset or turned on.

Shunt trip (SHT)

SHT can break the circuit instantaneously when the operating voltage is applied on SHT coil.

Table 1 List of numbers of internal accessories which can be fitted

table1

Ratings of alarm switches (AL) and auxiliary switches (AX) for CP30-BA

ClassificationACDC
Voltage
(V)
Current (A)Voltage
(V)
Current (A)
Resistive loadInductive loadResistive loadInductive load
Ratings of
items other
than those
shaded in
Table 1
For general
load
Max.(250)(1)(0.5)5010.5
(250)(1)(0.5)5010.5
Min.0.1A/15VAC0.1A/15VDC
For minute
load
Max.1250.5-300.5-
Min.1mA/24VDC, 2mA/12VDC, 5mA/6VDC
Ratings of
items shaded
in Table 1
For general
load
Max.(250)(1)
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