Active production — no obsolescence signal
The 3RT2336-1AP00: This is an active Siemens catalog line, not a legacy or sunset part.
S2 frame, 3-pole, AC coil — what the ratings mean for fit
Size S2 frame (114 x 75 x 130 mm) is the mechanical envelope — this is a mid-range SIRIUS contactor, not the compact S0 or the high-current S3/S6 frames. The 75 mm width means it occupies three 18 mm module spaces on a DIN rail. AC coil voltage type — the magnet is designed for AC control circuits (typically 50/60 Hz). The coil terminals are screw-type, which is the standard for panel wiring with ring or fork terminals. Mounting is screw and snap-on onto 35 mm DIN rail per DIN EN 60715. Side-by-side mounting is permitted without derating gaps — the 6 mm side clearance is for wiring access, not thermal separation. Mounting position flexibility: +/-180° rotation on a vertical surface, plus +/-22.5° forward/backward tilt. This covers most panel layouts including door-mounted or angled subpanels.
Auxiliary contact block — switching capacity across voltages
Built-in auxiliary switch with one instantaneous contact (NO or NC depending on variant). The switching capacity varies significantly with voltage: 10 A at 24 V AC and 230 V AC, but only 0.1 A at 600 V AC and 1 A at 690 V AC. For DC control circuits, the same contact handles 2 A at 48 V, 0.9 A at 125 V, and 0.3 A at 220 V. The DC rating drops faster than AC due to arc extinction limits. Wire range for auxiliary terminals accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded — covers common control wiring from 20 AWG to 14 AWG.
Environmental and mechanical endurance
Operating temperature range -40 to +70 °C, storage -55 to +80 °C — suitable for unheated enclosures in temperate and cold climates. The -40 °C low end covers freezer and outdoor applications. Mechanical service life 10 million operations typical — this is the contactor mechanism endurance, not the electrical life under load. Electrical life depends on switching current, voltage, and load type (AC-1/AC-3/AC-4). Arcing time 10-20 ms, operating time at AC 10-18 ms — these are the contactor's inherent switching speeds, relevant for coordination with upstream short-circuit protection devices. Power factor 0.37 at 50 Hz — this is the coil power factor, indicating the magnet's inductive draw. The control transformer or PLC output driving this coil must be rated for the inrush current, not just the sealed VA.