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Siemens 3RT1535-1AN20 — Contactors

Siemens 3RT1535-1AN20 SIRIUS Power Contactor, S2 Size, 40 A

MPN3RT1535-1AN20

Siemens SIRIUS power contactor, S2 size, 3RT1535-1AN20, 40 A rated per contact, screw-type terminals, 73 mm width, 112 mm height, 115 mm depth.

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

3RT1535-1AN20 — Identification
ParameterValue
Contactor frame sizeS2
3RT1535-1AN20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
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
3RT1535-1AN20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz15 VA
Rated value @ 50 Hz220 V
3RT1535-1AN20 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1535-1AN20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 160 A
Short-circuit coordination type 2, fusefuse gL/gG: 80 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1535-1AN20 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, solid or stranded2x (0,5 ... 1,5 mm²), 2x (0,75 ... 2,5 mm²), max. 2x (0,75 ... 4 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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT1535-1AN20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1535-1AN20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT1535-1AN20 — Mechanical
ParameterValue
Width73 mm
Height112 mm
Depth115 mm
3RT1535-1AN20 — Specifications
ParameterValue
At AC10 ... 30 ms

Product details

It switches resistive and motor loads in control panels, with a mechanical life of 10 million operations typical. The coil pulls 15 VA at 50 Hz; arcing time runs 10 to 15 ms, so it clears fast enough for most motor-starting duty.

The vertical mounting surface allows +/-180° rotation and +/-30° tilt front-to-back, so you can orient it for wire routing without derating. Side-by-side mounting is permitted — no extra gap needed between units. At 73 mm wide, 112 mm tall, and 115 mm deep, it fits a standard S2 footprint.

AWG equivalents for the main contacts go from 18 to 2 AWG. The magnet coil also terminates at screw terminals — no push-in or spring-cage here, so keep a screwdriver handy for panel wiring.

This is an active SIRIUS catalog line. For volume or blanket orders, submit an RFQ with target quantity and delivery window.

Frequently asked questions

Where can I buy 3RT1535-1AN20?

This part is sourced and quoted to order against an RFQ through independent industrial-automation distribution. Submit an RFQ for current pricing and availability.

What is the mechanical life of 3RT1535-1AN20?

Typical mechanical life is 10 million operations. That covers the contactor mechanism itself, not the electrical endurance under load — derate for switching current.

What wire sizes does 3RT1535-1AN20 accept?

Solid conductors: two per clamp from 0.5 to 1.5 mm², or 0.75 to 2.5 mm², max 4 mm². Stranded: two per clamp from 0.75 to 25 mm². Main contacts accept 18 to 2 AWG.

Will 3RT1535-1AN20 drop into a panel specified for 3RT2535-1AD00?

Both are S2-size Siemens SIRIUS contactors with the same mounting footprint on 35 mm DIN rail. The 3RT1535-1AN20 uses screw-type terminals; the 3RT2535-1AD00 may use a different coil voltage or auxiliary configuration — verify the coil rating and auxiliary contact count before swapping.

What compliance documentation does Siemens provide for 3RT1535-1AN20?

RoHS compliance is indicated by the substance prohibition date of 05/01/2012. The part carries 6 kV rated impulse withstand voltage for main and auxiliary circuits. Standard Siemens declarations of conformity and material declarations are available on request.

MPN
3RT1535-1AN20