SENTRY
®
RCBO
(Residual Current Operated
Circuit Breaker with Integral
Over-Current Protection)
Contents
A
Introduction
2
B
Product Range
3
C
Product Specification
4
D
Standards Compliance
6
E
Safety Instructions
6
F
Installation - General Notes
8
G
Installation
10
H
Testing
11
I
Tripping in Service
14
J
Guarantee
15
Please leave this leaflet with the
end user for future reference
52778PL Rev BB
2
ln this range of Single Module Width RCBO’s, each
product provides dual protection; from Over-current via
its MCB section, and from Earth Leaking Fault Current
(Residual Current) via its RCD section.
These devices provide RCD protection in full
compliance with the requirements of the Standard
BS EN 61009-1. They also provide very effective RCD
protection in the Supply Voltage Range of
110V
to
253V a.c.,
meeting the requirements of the Standard
for sensitivity and trip speed at
IΔ
n and
2
IΔ
n.
They meet the requirement of the current edition of the
UK Wiring Regulations (BS 7671), as regards ability to
trip with Earth Loop Impedance of up to 1667
Ω
(for a
30mA RCD), by being able to operate with Earth Loop
Impedance of up to 10,000
Ω
.
A. INTRODUCTION
5
Mechanical
Terminal Capacity
Line in - 25mm
2
Line and Neutral out - 25mm
2
Product Width
18mm
Product Height above
76mm
Din Rail
Product Length
118mm
Suitable Mounting
MK Sentry Consumer Unit
Enclosure
(select from the MK range)
Method of Mounting
Top Hat Mounting (DIN)
in Enclosure
Rail to EN 50022
Environmental
Ambient Temperature Range
-5°C to +40°C
Storage Temperature Range
-30°C to +85°C
Protection, Un-installed Device
IP 20
Protection, Installed in the
Consumer Unit
IP 40
C. PRODUCT SPECIFICATION
(Cont.)
6
The products in this range comply with the requirements of the
following standards:
BS EN 61009-1
BS IEC 61009-2-2
EN 61543 for EMC
D. STANDARDS COMPLIANCE
1.
This product must be installed by a competent person (e.g. a
qualified electrician) in accordance with these instructions and
the appropriate clauses of the current edition of the IEE Wiring
Regulations (BS7671) and Building Regulations.
2. The RCBO must be installed within a SENTRY
®
Consumer Unit
(select from the range of MK consumer units).
3. The RCBO should not be regarded as a substitute for basic safety
precautions.
4. Test the RCBO quarterly, as detailed in the current edition of the IEE
Wiring Regulations (BS 7671), by pressing the TEST BUTTON marked
T, provided on the product (see label on the Consumer Unit).
E. SAFETY INSTRUCTIONS
7
Do not use the product if
it fails to trip during this
operation. Failure to trip
indicates either no supply to
the RCBO or a faulty device.
Consult a qualified electrician
or contact MK Technical Sales
and Service Department.
Telephone:
01268 563720
(National)
+44 (0) 1268 563758
(International)
5. Choose an RCBO from TABLE 1,
with the correct ratings, for the
circuit to be protected.
6. The RCBO’s in this range must
not be used in ambient
temperatures outside their
specified range.
L
IN
N
OUT
L
OUT
I
∆
n 30mA
6000
3
230V
B32
7936s
ON
BS EN61009-1
Load
N
OUT
L
OUT
N
IN-Supply
(Blue)
FE
(White)
L
IN-Supply
Blue Flying
Curled Neutral
Supply Lead
White or
Cream
Flying Earth
Supply Lead
Line Supply
E. SAFETY INSTRUCTIONS
(Cont.)
8
1. The RCBO shall be installed at the source of the circuit
in which the Earth Fault and Over-current protection is
required.
2. The RCBO’s may be installed alongside other SENTRY
®
Modular Products, as part of a larger assembly.
3. The RCBO is a sensitive device designed for fixed
installation in a clean and dry environment. The device
must not be installed as part of a portable system which
may be subject to mechanical shocks and vibration.
4. An adhesive label giving test instructions is provided
with each RCBO. This label shall be placed in a
prominent position close to the RCBO (preferably on the
Consumer Unit Cover).
5. Upon completion of the installation, please leave this
instruction leaflet in close proximity to the RCBO, for
future reference.
F. INSTALLATION - GENERAL NOTES
4
Electrical
Number of Poles
Single Pole with Solid
Neutral
Rated Supply Voltage
230V a.c. +10%, -15%
Supply Voltage Range
110V to 253V a.c.
Supply Frequency Range
45 to 66Hz
Supply Voltage Range for
195V to 253V a.c.
Test Device Operation
RCD Trip Current Rating
30 mA
Operating Characteristics
Type AC
MCB
Type B, C
Rated Short Circuit
6 kA
Capacity Icn
Neutral Connection
Flying Lead
Earth Connection
Flying Lead
C. PRODUCT SPECIFICATION
3
The product range is given in Table 1 below.
All products in the range have an RCD trip current
rating of 30mA.
Table 1
Type B RCBO
Type C RCBO
List No.
MCB Current
List No.
MCB Current
Rating A
Rating A
07932s
6
08932s
6
07933s
10
08933s
10
07934s
16
08934s
16
07935s
20
08935s
20
07936s
32
08936s
32
07937s
40
08937s
40
07938s
45
08938s
45
07939s
50
08939s
50
B. PRODUCT RANGE
Figure 1
