As an interface relay, the AF-RA4 sits between a low-level control signal (from a PLC, DCS, or safety relay) and the field load it switches. It provides galvanic isolation and signal amplification, protecting the controller from voltage spikes or ground loops on the load side. Typical deployment is on a DIN rail inside a control panel, where it occupies a single socket position.
ABB AF-RA4 Interface Relay, Type Interface Relays, Current L
MPNAF-RA4
ABB AF-RA4 Interface Relay, Type Interface Relays, lifecycle_stage current.
$90.69Ref. price · indicative, final on quote
Source DocumentedChannel stated on listing & quote
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Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Type | Interface Relays |
Product details
Frequently asked questions
What is AF-RA4's listed type?
AF-RA4 is classified as Type Interface Relays.
MPN
AF-RA4