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SA7 Modular Magnetic Circuit Breaker

Applications
SF7 SX7 SA7 Hydraulic magnetic mini circuit breaker are mainly suitable for overload and short
circuit protection. It adopts hydraulic magnetic trip instead bimetal. So it has a high sensitivity. And it
is also not effected by the ambient temperature. It is especially used for illumination and distribution
in industry and commerce. They are mainly used for overload and short circuit protection within the
circuit of AC 50Hz/60Hz, rated voltage of single poles or double up to 240V, three pole up to 415V.
they can also be used for an un-frequent switch-over of the circuit and illumination under normal
conditions.

Frame amperes 1-100
Type SA7, SF7, SX7
Standard ampere rating.① 10-20 10-20 20 20
The trip point is not affected by 30-40 30-40 30-40 30-40
ambient temperature variations. 50-60 50-60 50-60 50-60
70-80 70-80 70-80 70-80
90-100 90-100 90-100 90-100
120②
Number of poles 1 3 SP+N 3P+N
Rated voltage (V) AC 50/60Hz 240 415 240 415
DC - - - -
Rated IEC 157-1
interrupting BS 4752 240/415V AC 6 6 6 6
capacity (KA) BS 3871-1
SABS 156 240/415V AC 5 5 5 5
Time delay tripping Curve Idmtl Instantaneous (X In)
curve numbers and overcurrent (shout circuit)
colour of handles 1 Slow High 10 to 15 Orange Green
2 Medium Medium 8 to 10 White (Isolator)
3 Fast Medium 8 to 10 White
5 Medium Low 4 to 6 White
2 load limiter 115% trip point Medium 8 to 10 Red
Tripping curve Refer Operating Characteristics-Section 2.6
Usble as a disconnector Yes Yes Yes Yes
Outline dimensions (mm) Depth 72 72 20-60A 70-100A 20-60A 70-100A
Width 26 78 72 72 72 72
Height 132 132 39 52 91 104
Weight (kg) 0.25 0.75 132 132 132 132
0.32 0.48 0.48 096
Tripping mechanism Hydraulic magnetic with internal and external linkage to a common trip of multipole units
2
Connection Box terminal (50 mm cable maximum). Torque 3,5 Nm
Mounting Surface mounting with screws or on clip tray

Optional accessories
Extended lug terminal Yes Yes Yes Yes
Shunt trip - - - -
Busbar single phase 36 pole Yes - - -
Busbar 3 phase insulated Yes Yes - -
Escutcheon blanks Yes Yes Yes Yes
Safety blanks Yes Yes Yes Yes
Handle lock Yes Yes Yes Yes
Shrouds 1 and 3 pole Yes Yes Yes Yes
Type SA7 Surface mounting clips/screws Yes Yes Yes Yes
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Auxiliary switch
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