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Siemens 3RT2025-1BJ80 — Contactors

Siemens 3RT2025-1BJ80 SIRIUS S0 Power Contactor, 24 VDC Coil

MPN3RT2025-1BJ80
Active

Siemens SIRIUS S0 power contactor, 3RT2025-1BJ80, 24 VDC coil, screw-type terminals, screw and snap-on mounting onto 35 mm DIN rail.

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

Specifications

3RT2025-1BJ80 — Identification
ParameterValue
Contactor frame sizeS0
3RT2025-1BJ80 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V3 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2025-1BJ80 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2025-1BJ80 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2025-1BJ80 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63A (690V,100kA), aM: 32A (690V,100kA), BS88: 63A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2025-1BJ80 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2025-1BJ80 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2025-1BJ80 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2025-1BJ80 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

The 107 mm depth leaves clearance for wiring and adjacent components. Rated for 1 000 operating cycles per hour at AC-1, AC-2, AC-3, and AC-3e duty, and 300 cycles per hour at AC-4. That means it handles frequent motor starting and stopping in conveyor or pump applications without derating the mechanical life of 10 000 000 typical operations. The auxiliary contact block carries 10 A at 24 VDC, 2 A at 48 VDC and 60 VDC, 1 A at 110 VDC, 0.9 A at 125 VDC, and 0.3 A at 220 VDC — useful for signaling back to a PLC or relay logic at different control voltages.

Main contacts accept solid or stranded wire from 1 to 10 mm² (one conductor) or 2x (0.5 to 1.5 mm²) / 2x (0.75 to 2.5 mm²) for two conductors. The screw-type terminals are standard for panel builders — no special tooling needed. The S0 frame size (45 mm wide) fits alongside other SIRIUS components on the same DIN rail, keeping the panel layout dense.

Frequently asked questions

Where can I buy 3RT2025-1BJ80 and how do I get a price?

This part is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — no stock or lead-time figures are held on this listing.

What is 3RT2025-1BJ80's listed depth?

The depth is 107 mm, with a width of 45 mm and height of 85 mm.

What wire sizes does the main contact accept?

Solid or stranded wire from 1 to 10 mm² for a single conductor, or 2x (0.5 to 1.5 mm²) / 2x (0.75 to 2.5 mm²) for two conductors.

What is the auxiliary contact DC rating at 24 V?

The auxiliary contact is rated for 10 A at 24 VDC.

MPN
3RT2025-1BJ80