Hager JK11253S
125A 3 Pole JK1 Switch
Incomer Kit (JK11253S)

The Hager JK11253S is a 125A Triple Pole (3P) Switch Disconnector Incomer Kit designed specifically for use with Hager Invicta 3 (Type B) TPN distribution boards.
It serves as a main isolator to allow safe isolation of all circuits within the board.
Key Specifications
Current Rating: 125A.
Voltage Rating: 400V AC (50/60 Hz).
Number of Poles: 3 (Triple Pole).
Compatibility: Designed for Hager Invicta 3 distribution boards (125A incoming, 63A outgoing).
Standards: Complies with BS EN 60947-3 and BS EN 60439-3.
Short Circuit Rating: 25kA rated short-circuit withstand current.
Materials: Durable Polycarbonate (PC) and ABS plastic construction.
Kit Contents
The kit is "all-in-one," providing everything needed for installation into a 125A distribution board:
1 x 125A 3 Pole Modular Switch (SBN399).
1 x Terminal Shield for safety.
3 x Incomer Links (copper busbar links).
Caged Terminals and required nuts (M5 and M6 carp nuts).