Siemens 3RT1036-1AG24-ZX95 — SIRIUS Size S2 Power Contactor
The Siemens 3RT1036-1AG24-ZX95 is a SIRIUS power contactor in size S2, designed for switching motor loads in industrial control panels. It mounts via screw and snap-on onto 35 mm DIN rail per DIN EN 50022, with a footprint of 55 mm width by 112 mm height by 164 mm depth — the 164 mm depth is the dimension to account for when planning gland-plate clearance or enclosure depth.
Motor Ratings and Duty Cycles
Rated motor power at 500 V reaches 30 kW, and at 690 V it delivers 11.4 kW. Under AC-2 duty at 400 V, the contactor is rated for 22 kW — this is the rating that governs slip-ring motor or wound-rotor applications where the contactor makes and breaks under load. The AC-3 maximum switching rate is 800 operations per hour, while AC-4 (plugging / inching) is limited to 300 per hour.
DC Switching Capability and Coil Data
For DC loads, the contactor switches 10 A at 24 V, 2 A at 60 V, 1 A at 110 V, and 0.3 A at 220 V. The coil operates at 50/60 Hz with a voltage tolerance of 0.8...1.1 x rated at 50 Hz and 0.85...1.1 at 60 Hz. Arcing time is 10...15 ms; the make time at AC is 7...20 ms.
Termination and Wiring
Main current circuit uses screw-type terminals. Solid wire accepts 2x (0.5...1.5 mm²), 2x (0.75...2.5 mm²), and max 2x (0.75...4 mm²). Stranded wire range is 2x (0.75...25 mm²). Solid or stranded combined accepts 2x (0.75...16 mm²). The terminal protection rating is IP00; the front of the contactor is IP20.
Environmental and Mechanical Life
Operating temperature range is -25 to +60 °C; storage range is -55 to +80 °C. Pollution degree 3 per IEC 60947-1, meaning the contactor is rated for conductive pollution environments typical of industrial control panels. Mechanical life is 10,000,000 operations typical. Side-by-side mounting is permitted without derating.