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Installation Instructions 
Before Installing I – Line MCCB’s disconnect all power to the panel board 
1. Align I Line MCCB with busbar 
ensuring the guide boss on the 
MCCB aligns with the groove on 
the busbar shroud 
2. Place screwdriver through 
rectangular hole (see picture) in 
the mounting bracket; using the 
slots in the panelboard mounting 
pan firmly ratchet the MCCB into 
place 
3. Tighten clamping screw 
over tighten such that 
mounting is deformed. 
Recommended torque 1.5Nm. 
Reverse the fitting procedure taking care to 
ensure the clamping bolt is clear of the pan 
assembly. 
If a new MCCB is not being fitted the space 
should be filled with HNM-1BL or HNM-4BL 
The equipment must be installed and maintained by competent personnel in accordance with the 
appropriate statutory regulations and codes of practice e.g. Electricity at Work Regulations, IEE. Wiring 
regulations (BS7671) Etc. 
Ensure the source is isolated elsewhere, locked off and labelled prior to work being carried out on the 
board. 
It is the responsibility of the installer to ensure that all electrical connections are tight and satisfactory earth 
continuity has been achieved. 
Following completion of installation these instructions should be left with the equipment/end user. 
Warning 
• Do not adjust plug on jaws or remove the joint compound from them. 
• Mount main circuit breaker adjacent to main lugs 
• Clearly identify when used as an incomer on Size 1 Panelboard 
Schneider Electric Limited 
Stafford Park 5 
Telford 
TF3 3BL 
Tel: 0870 608 8 608 
Fax: 0870 608 8 606 
www.schneider-electric.co.uk 

s 
communicated directly to Schneider Electric
I Line MCCB Product Selector Table 
Outgoing Device 1 & 2 Pole 
16-100A 25 kA  Single Pole 1 Mod  Double Pole 1 Mod 
         L1  L2  L3  L1/L2 
  Suffix  Suffix 
16A  SFA1016  SFA2016 
20A  SFA1020  SFA2020 
32A  SFA1032  SFA2032 
40A  SFA1040  SFA2040 
50A  SFA1050  SFA2050 
63A  SFA1063  SFA2063 
80A  SFA1080  SFA2080 
100A  SFA1100 
A  B  C 
AB  BC 
SFA2100 
L2/L3 
Triple Pole (3 Mods)  Additional 
tunnel 
terminals 
16A  CDXAE34016  CNXAE34016  CHXAE34016 
25A  CDXAE34025  CNXAE34025  CHXAE34025 
32A  CDXAE34032  CNXAE34032  CHXAE34032 
40A  CDXAE34040  CNXAE34040  CHXAE34040 
50A  CDXAE34050  CNXAE34050  CHXAE34050 
63A  CDXAE34063  CNXAE34063  CHXAE34063 
80A  CDXAE34080  CNXAE34080  CHXAE34080 
100A  CDXAE34100  CNXAE34100  CHXAE34100 
125A  CNXAE34125  CHXAE34125 
160A  CNXAE34160  CHXAE34160 
200A  CNXAE34200  CHXAE34200  LV429259 
250A  CNXAE34250  CHXAE34250  LV429259 
160A (elec)  CNXAE34160E20  LV429242  1.5 – 95mm 
250A (elec)  CNXAE34250E20  LV429259  95 – 185mm 
To ensure that the equipment described is safe for both personnel and property it should be installed, commissioned and 
maintained by or under the supervision of qualified persons. Regard should be taken of BS7671, Codes of practice, statutory 
requirements and specific 
Instructions issued by Schneider Electric. Any operating or installation queries relating to these products should be 
25kA  36kA  50kA 
Health and Safety at Work, etc Act 1974 
LV429242  1.5 – 95mm 
Acceptable 
cable 
95 – 185mm 
Schneider Electric Limited 
Stafford Park 5 
Telford 
TF3 3BL 
Tel: 0870 608 8 608 
Fax: 0870 608 8 606 
www.schneider-electric.co.uk