What the ratings decide for this BOM line
The ABB 1SBL136061R2110 is a 3-pole main contactor in the AF series, configured 3NO with one NO auxiliary, sized at 25 A switching current and 690 V switching voltage — the headline numbers a panel wireman uses to match it to the motor or resistive load on the drawing. The 5.5 kW AC switching power figure is the one that anchors the motor-side decision: it states the load the device will switch in standard AC duty, so the BOM line can be checked against the motor nameplate rather than just the contactor's bare current rating. DC switching power is rated 2.2 kW on this same body, so the same part covers low-voltage DC branch switching without needing a second catalog line — useful when a panel mixes AC contactors and a small DC solenoid or heating circuit.
Mounting, termination, and what that means in a packed enclosure
DIN rail mounting is the listed mounting type for this contactor, so it stages on the same rail as other AF-series devices in the panel layout. Screw terminals are the listed termination type, accepting ring-lug or ferrule terminations suited to motor-branch wiring. The IP20 / IP40 protection rating describes the contactor body in its installed state: finger-safe at the terminals with the panel door closed, and protected against tool ingress into the body — adequate for a closed control cabinet, not a washdown field enclosure.
Where this contactor class fits
Three-pole 25 A contactors in the AF series are typically specified as motor load switches in control panels — direct-on-line starters for small three-phase motors, heater banks, and branch isolation where a single device carries the line and the auxiliary contacts feed the control circuit.