Skip to main content
Log in
Siemens 3RT1025-1AL28-0PA4 — Contactors

Siemens 3RT1025-1AL28-0PA4 Power Contactor, AC-3 17 A, 7.5 k

MPN3RT1025-1AL28-0PA4

Siemens SIRIUS 3RT1 power contactor, 3RT1025-1AL28-0PA4, AC-3 17 A, 7.5 kW/400 V, 230 V AC 50/60 Hz coil, 3-pole, 1 NO + 1 NC auxiliary, Size S0 screw terminal.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Product details

The Siemens 3RT1025-1AL28-0PA4 is a SIRIUS 3RT1 power contactor rated for AC-3 duty at 17 A, switching 7.5 kW at 400 V. The 230 V AC coil pulls in reliably at 50/60 Hz. Three main poles handle motor loads; the 1 NO + 1 NC auxiliary contact block is integrated on the Size S0 frame. Screw terminals suit panel wiring with ferruled or solid conductors.

Panel Integration

Coil terminals are on the top face; main and auxiliary connections are clearly marked. The 1 NO + 1 NC auxiliary block is pre-wired to the contactor base — no separate assembly needed.

Frequently asked questions

What replaces the 3RT1025-1AL28-0PA4?

The official successor is the SIRIUS 3RT2 series. It shares the same Size S0 footprint and screw terminal layout, making it a direct DIN-rail replacement.

Where can I buy the 3RT1025-1AL28-0PA4?

We source this phased-out order code through independent distribution — new-old-stock and surplus inventory. Submit an RFQ for current availability and pricing.

What are the key ratings of the 3RT1025-1AL28-0PA4?

AC-3 motor-switching duty at 17 A, 7.5 kW at 400 V. Coil is 230 V AC, 50/60 Hz. Three main poles, 1 NO + 1 NC auxiliary contacts. Size S0 frame with screw terminals.

MPN
3RT1025-1AL28-0PA4