Page 15 - IPD Product Catalog V17

Circuit Breakers & Load Centres

RESIDUAL CURRENT DEVICE (RCD)

Characteristics
9 6
1. RCD Model Name
1 1
2. Rated Current (I ) 2 3
n
3. Rated Residual Operating Current (I ) 4
Δn
5
4. Rated Voltage (U )
n
5. Rated Making & Breaking Capacity (I )
m
6. Contact Position Indicator 7
8
7. Wiring Diagram
8. ABB Identity Number
9. Test Button
Types of Wave form Detected by RCDs and Classification

Proper functioning type
Current AC A / AP-R F B
waveform Tripping current

▪ ▪ ▪ ▪ 0.5 to 1.0 IΔn
_ ▪ ▪ ▪ 0.35 to 1.4 IΔn
_ ▪ ▪ ▪ Current Delay Angle 90°: 0.25 to 1.4 IΔn
_ ▪ ▪ ▪ Current Delay Angle 135°: 0.11 to 1.4 IΔn
_ ▪ ▪ ▪ Maximum 1.4 IΔn + 6mA

_ _ ▪ ▪ Maximum 1.4 IΔn + 10mA

_ _ ▪ ▪ 0.5 to 1.4 IΔn

_ _ _ ▪ 0.5 to 2.0 IΔn

_ _ _ ▪ Current Frequency 150Hz: 0.5 to 2.4 IΔn
_ _ _ ▪ Current Frequency 400Hz: 0.5 to 6 IΔn
_ _ _ ▪ Current Frequency 1000Hz: 0.5 to14 IΔn

Tripping Curve Comparison

• 30mA instantaneous RCD
• 30mA AP-R (anti-disturbance) instantaneous RCD
• 300mA selective RCD (Type S)
* Type S RCDs have a delayed tripping action and are installed upstream of other
rapid RCDs to guarantee selectivity and limit the power out only to the portion of
the system affected by a fault.

* AP-R devices which trip according to the limit times allowed by the Standards
for instantaneous RCDs, as outlined below.
On 30th April 2023, AS/NZS 3000:2018 Amendment No. 2 was released. That amendment included a clause relating to Type AC and Type A RCDs;
Clause 2.6.2.2.2 starting at Paragraph 4; RCDs shall be of the type for which tripping in ensured extend to (a) residual sinusoidal alternating current,
(b) residual sinusoidal alternating current and (c) residual pulsating direct current.
For 24 months from the date of publication of Amendment No. 2, either Item (a) or (b) may apply. Following that time Type AC RCDs described in
Item (a) shall not be installed.

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