The Schneider Electric A9N26898 is an Acti9 OF+SD24 auxiliary contact block with an integrated TI24 PLC interface — essentially a combined open/closed position indicator and fault-signal contact for Acti9 miniature circuit breakers and residual current devices. It mounts fixed on the DIN rail alongside the breaker, occupying a single 9 mm pitch (0.4 in wide). The 1 NO + 1 NC signal contact set is rated for DC-12 logic-level switching at 2...100 mA, 24 V DC ±20 %, making it suitable for direct connection to a PLC digital input without an intermediate relay.
Rated insulation voltage (Ui) is 500 V per IEC 60664-1, with an impulse withstand voltage (Uimp) of 6 kV and overvoltage category III — this means the contact block is insulated for direct connection to the load side of a distribution board, not just control-circuit isolation. The pollution degree 2 rating confirms it is intended for a clean (non-conductive) indoor panel environment; IP20 protection means finger-safe but not washdown-rated. The spring-loaded Ti24 terminals accept 0.25...0.75 mm² flexible or 0.5...1.5 mm² rigid wire, with a 10 mm strip length — standard for Acti9 accessories.
The A9N26898 carries CE marking and is designed to IEC 60947-5-1 (control circuit devices) and IEC 60947-5-4 (low-energy contact performance). The tropicalisation class 2 per IEC 60947-5-1 indicates the part is tested for damp-heat conditions (93 % RH at 40 °C). Storage temperature range is -40 to 185 °F (-40 to 85 °C); operating range is -13 to 140 °F (-25 to 60 °C).