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Historic Products
This section provides information and downloads for discontinued products.
These products are no longer available for new installations.
Spare parts may be available.
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M221E Module
Dual Input Single Output Module
This product has been replaced by the M221EA.
The M221E provides supervision of two input circuits from external devices and an unmonitored single pole volt-free changeover contact for external devices. The module features a built-in short-circuit isolator. Input channels are capable of both latched and analogue supervision: there are three separate latched states; Normal, Open-Circuit and Combined Alarm/Short. The analogue supervision continuously monitors the supervised circuit, returning a signal proportional to the circuit resistance.
Features
- M221E Dual-Input / Single-Output Module
- Common mechanical platform for box, panel and DIN Rail mount versions
- Tri-colour LEDs with wide-angle LED visibility
- Built-in short-circuit Isolators
- Decade address switches - visible and selectable in two planes
Ordering Information
Product Code
Description
Availability
M221E
AA Module Dual Input, Single Output (Uses M200E-SMB)
Discontinued
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