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Siemens 3RT1024-3AG20-ZW98 — Contactors

Siemens 3RT1024-3AG20-ZW98 SIRIUS Power Contactor, S0, 7.5 k

MPN3RT1024-3AG20-ZW98

Siemens SIRIUS 3RT1024-3AG20-ZW98, size S0 power contactor, 7.5 kW at 500 V / 690 V, screw-type terminals, 45 mm width, DIN rail mount.

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

3RT1024-3AG20-ZW98 — Identification
ParameterValue
Contactor frame sizeS0
3RT1024-3AG20-ZW98 — Ratings & Performance
ParameterValue
Rated operational current, AC-4 @ 400 V12.5 A
Rated value @ 400 V3 A
Rated value @ 500 V7.5 kW
Rated value @ 690 V7.5 kW
Rated value @ 230 V6 A
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT1024-3AG20-ZW98 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.8 ... 1.1
Rated value @ 50 Hz110 V
3RT1024-3AG20-ZW98 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1024-3AG20-ZW98 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 25 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1024-3AG20-ZW98 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.25 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.25 ... 1.5 mm²)
Side-by-side mountingYes
3RT1024-3AG20-ZW98 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1024-3AG20-ZW98 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
3RT1024-3AG20-ZW98 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth90 mm

Product details

Rated 7.5 kW at both 500 V and 690 V, it handles the motor starting and running currents typical of pumps, fans, and conveyors in 50/60 Hz networks.

The S0 frame is a common Siemens footprint, so panel layouts already using S0 contactors accept this drop-in without drilling or rail changes.

Integration details for the panel builder

Main circuit wiring accepts solid or stranded conductors: 2x (0.25 to 2.5 mm²) for control, 2x (1 to 6 mm²) for power, up to 2x 10 mm² maximum. AWG equivalents: 2x (16 to 12) for control, 2x (14 to 10) for power. Keep the panel door interlocked or use a finger-safe cover over the terminals.

This matters when specifying the motor branch circuit. Mechanical endurance is typical 10 million operations — not a weak link in a high-cycle application like a stamping press or packaging line.

Frequently asked questions

What are the key ratings for this contactor?

Rated 7.5 kW at 500 V and 690 V, AC-4 current 12.5 A at 400 V. Coil control voltage is 110 V at 50/60 Hz. Operating temperature -25 to +60 °C. Pollution degree 3.

What fuse coordination does this contactor require?

Type 2 coordination requires a 25 A gL/gG fuse upstream. Type 1 coordination allows up to 63 A gL/gG. This affects the motor branch circuit protection design.

Does the 3RT1024-3AG20-ZW98 replace the 3RT1023-1AL20?

Both are S0 frame contactors on 35 mm DIN rail, so they share the same footprint and mounting. The 3RT1024-3AG20-ZW98 carries higher power ratings (7.5 kW vs the 3RT1023-1AL20's lower rating), so it's a functional upgrade if the coil voltage and terminal style match your application.

MPN
3RT1024-3AG20-ZW98