Multiple available.
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It is new, unused, but has been sitting among other things and is a little scratched.
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Such an imbalance may indicate current leakage through the body of a person who is grounded and accidentally touching the energized part of the circuit. A lethal shock can result from these conditions.
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SCHNEIDER ELECTRIC 100 AMP 30mA DOUBLE POLE RCCB RCD TYPE AC 230V EASY9 EZ9R33291 BS EN 61008
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SCHNEIDER ELECTRIC 40 AMP CURVE B 6kA 30mA RCBO RCD MCB TYPE A 230V EASY9 EZ9D16840 BS EN 61009
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