Can I use a 30 amp contactor to replace this 40 amp model

This part is the electrode and bracket assembly

at which point it opens

With a frame size designated for interior blower decks

Nordyne 921732 Tube Kit for TXV Replacement

Bard HVAC 536-531 Assembly 323055-751 Can I use a 30For field technicians maintaining wall mount units, the Bard 536 531 ERV Exhaust BOP Assembly is the critical OEM replacement part required to restore energy recovery ventilation performance. This exhaust blower outfit (BOP) is engineered specifically for Bards ERV modules, ensuring that stale air is effectively removed from the conditioned space while maintaining the pressure balance necessary for high efficiency heat exchange. Using a genuine Bard