Siemens 3RT1516-1BW40 SIRIUS Power Contactor, Size S00, 24 V

Name: 3RT1516-1BW40
Brand: Siemens
SKU: 3RT1516-1BW40
Price: 128.8 USD
Availability: LimitedAvailability
Author: Validation Vera

Specifications

3RT1516-1BW40 — Identification
Parameter	Value
Contactor frame size	S00

3RT1516-1BW40 — Ratings & Performance
Parameter	Value
Rated value @ 400 V	3 A
Rated value @ 230 V	6 A
Rated value @ 24 V	10 A
Rated value @ 60 V	2 A
Rated value @ 110 V	1 A
Rated value @ 220 V	0.3 A

3RT1516-1BW40 — Control & Coil
Parameter	Value
Control supply voltage type	DC

3RT1516-1BW40 — Contacts & Poles
Parameter	Value
Main poles	4
Main NO contacts	2
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RT1516-1BW40 — Protection & Coordination
Parameter	Value
Short-circuit coordination type 1, fuse	fuse gL/gG: 35 A
Short-circuit coordination type 2, fuse	fuse gL/gG: 20 A
Aux. switch short-circuit protection, fuse	fuse gL/gG: 10 A

3RT1516-1BW40 — Connection & Mounting
Parameter	Value
Main circuit connection	screw-type terminals
Conductor cross-section, solid	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), max. 2x (0.75 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Side-by-side mounting	Yes

3RT1516-1BW40 — Durability
Parameter	Value
Durability (operating cycles, typ.)	30 000 000
Durability with aux. switch block (cycles, typ.)	10 000 000

3RT1516-1BW40 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C

3RT1516-1BW40 — Mechanical
Parameter	Value
Width	45 mm
Height	57.5 mm
Depth	72 mm

Product details

SIRIUS power contactor, size S00 — 24 VDC coil, screw terminals

The 24 VDC coil draws its holding current from a standard 24 VDC supply; dropout occurs below the 0.85 initial-value threshold, so verify your control voltage stays above that during brownout conditions. Main circuit connections use screw-type terminals, accepting solid or stranded copper: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max 2x (0.75...4 mm²). The auxiliary contacts — one NO and one NC — are each rated 9 A, and share the same terminal style.

DC switching capability across the voltage range

This contactor carries a DC-1 rated switching curve: 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, 0.3 A at 220 V, and 0.8 A at 440 V. The arcing time runs 10...15 ms; the operate time at DC is 7...10 ms. For DC loads, the inductive time constant of the circuit governs contact erosion — the listed currents assume resistive or slightly inductive DC loads, not heavily suppressed arcs.

Mounting and integration — DIN rail, side-by-side, orientation

Environmental limits and altitude

Frequently asked questions

Where can I buy 3RT1516-1BW40 and what is the lead time?

This part is sourced to order through our independent distribution channel. Availability and current pricing are confirmed at quote time against an RFQ.

What is the closest functional second-source to 3RT1516-1BW40?

The closest functional peer is 3RT1016-1AG61, which shares the S00 frame size and 24 VDC coil voltage. The 3RT1516-1BW40 uses screw-type terminals; the 3RT1016-1AG61 uses spring-cage terminals. Both mount on 35 mm DIN rail and occupy the same 45 mm width, so a panel designed for one can accept the other without rewiring the rail or changing the footprint — but terminal preparation differs (ferrule vs bare wire).

What is the depth of 3RT1516-1BW40?

The depth is 72 mm, measured from the mounting surface to the furthest terminal projection.

What wire sizes does the screw terminal accept?

Solid or stranded: 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), or max 2x (0.75...4 mm²).

Will 3RT1516-1BW40 drop into a panel specified around 3RT1016-1AG61 without rewiring?

Yes, the DIN-rail footprint (45 mm width, 57.5 mm height, 72 mm depth) and mounting method are identical. The difference is terminal type: screw vs spring-cage. If the panel wiring uses ferruled stranded wires sized for a spring cage, the screw terminal will accept them — but the reverse (bare solid wire into a spring cage designed for ferrules) may not. No rewiring of the rail or bus is needed.