Siemens 3RT20262AK60 Electromechanical Contactor
Family position and MPN decode
The MPN prefix 3RT2026 places this part in the Siemens SIRIUS 3RT2 series (second generation) contactor family. Within that series, the character sequence after the base number encodes the frame size (S0, 25 A), the coil voltage code, and the auxiliary contact arrangement. The AK60 suffix specifies a 120 VAC coil with one normally-open and one normally-closed auxiliary contact. The primary pole configuration is 3PST-NO (3 Form A), meaning three main contacts rated at 25 A.
Key parameters
| Parameter | Value |
|---|---|
| Base product number | 3RT2026 |
| Contact rating | 25 A |
| Contact form | 3PST-NO (3 Form A) |
| Coil voltage | 120 VAC |
| Must-operate voltage | 96 VAC |
| Coil power | 81 VA (primary); 79–81 VA (catalog peers) |
| Operate time | 40 ms |
| Operating temperature | 25°C to 60°C |
| Mounting | Chassis mount / DIN Rail |
| Features | Auxiliary contacts (1NO/1NC standard; see catalog peers for variants) |
| Encapsulation | Bulk (seed) |
Catalog peer comparison
The table below shows the seed part alongside in-catalog rows from the same 3RT2026 base family. Shared spec keys appear where both records contain values; differences are noted where the records provide differing data.
| 3RT20262AK60 | 3RT20262AK601AA0 | 3RT20262AK643MA0 | |
|---|---|---|---|
| Coil voltage | 120 VAC | 120 VAC | 120 VAC |
| Contact rating | 25 A | 25 A | 25 A |
| Contact form | 3PST-NO | 3PST-NO | 3PST-NO |
| Coil power | 81 VA | 79 VA | 79 VA |
| Operate time | 40 ms | 40 ms | 40 ms |
| Auxiliary contacts | 1NO/1NC | 1NO/1NC | 2NO/2NC |
| Encapsulation | Bulk | Box | Box |
| Similarity (0–1) | — | 1.0 | 1.0 |
Why they appear in the same search results: All three share the Siemens 3RT2 family, S0 size (25 A), the same coil voltage class (120 VAC), identical 3PST-NO main contact form, matching operate time, and the same mounting footprint. The primary parametric spread across the seed and its full-similarity peers is coil power (77–81 VA) and auxiliary contact count — not main-pole rating or coil voltage class.
The remaining catalog rows (3RT20262AP60, 3RT20262AF00, 3RT20262AG20, 3RT20262AB00, 3RT20262AV00, 3RT20262AM20) match on base product number, contact rating, contact form, operate time, mounting type, and the auxiliary-contact feature, but differ in coil voltage (24 VAC through 400 VAC) and must-operate voltage accordingly.
These are catalog peer rows for screening only — the reader must perform their own coordination and qualification before any substitution.
FAQ
What main-load current can the 3RT20262AK60 switch on its three poles? 25 A per pole, 3PST-NO configuration.
What coil voltage does the 3RT20262AK60 require to pull in reliably? The coil is rated 120 VAC; the must-operate voltage on record is 96 VAC.
Does the 3RT20262AK60 include auxiliary contacts? Yes — one normally-open and one normally-closed auxiliary contact are included (1NO/1NC).