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Siemens 3RT1526-1BM40 — Contactors

Siemens 3RT1526-1BM40 SIRIUS Power Contactor, Size S0, 24 VD

MPN3RT1526-1BM40

Siemens SIRIUS power contactor, size S0, 24 VDC coil, screw terminals, 3RT1526-1BM40.

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

3RT1526-1BM40 — Identification
ParameterValue
Contactor frame sizeS0
3RT1526-1BM40 — Ratings & Performance
ParameterValue
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
3RT1526-1BM40 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT1526-1BM40 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT1526-1BM40 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusefuse gL/gG: 63 A
Short-circuit coordination type 2, fusefuse gL/gG: 35 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT1526-1BM40 — Connection & Mounting
ParameterValue
Main 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, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mountingYes
3RT1526-1BM40 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT1526-1BM40 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
3RT1526-1BM40 — Mechanical
ParameterValue
Width61 mm
Height85 mm
Depth101 mm

Product details

The contactor's coil is rated for 24 VDC, with a switching frequency in AC-1 duty up to 1 000 operations per hour. Auxiliary contacts (both NO and NC) are rated 20 A each. The main circuit impulse withstand voltage is 6 kV. Dimensions: 85 mm high, 61 mm wide, 101 mm deep — that 61 mm width is the key number for DIN-rail space planning in a crowded panel.

Mounting and wiring detail

Side-by-side mounting is allowed — no gap needed between contactors on the rail, which saves panel width. The screw terminals for the main circuit are sized for solid or stranded wire: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), max 2x (0.75–4 mm²). That covers most control wiring gauges used in industrial panels. Maximum altitude for operation is 2 000 m, so it works at most plant sites without derating.

Frequently asked questions

Where can I buy 3RT1526-1BM40 and get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm quote.

What are the mounting dimensions of 3RT1526-1BM40?

The contactor measures 85 mm high, 61 mm wide, and 101 mm deep. That 61 mm width is the critical dimension for DIN-rail space planning — it mounts on a 35 mm rail per DIN EN 50022 with a snap-on clip.

What wire sizes does the 3RT1526-1BM40 accept?

The screw terminals accept solid conductors: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), and max 2x (0.75–4 mm²). That covers typical control and power wiring in industrial panels.

MPN
3RT1526-1BM40