20.21 20.22, 24, 26, 28 20.23 1 or 2 Pole 16 A Step relays for direct 35 mm rail (EN 60715) mounting with the following features: 17.4 mm wide, test button with mechanical indicators, 6 switching sequences available, AC coils and DC coils, identification label, possible to connect illuminated push buttons with the additional part 026.00, 35 mm rail (EN 60715) mount, cadmium free contact material
The Finder 20 Series modular step relays are 1‑ or 2‑pole devices rated for 16 A continuous current and up to 30 A peak. They are available with AC or DC coil voltages, a choice of six switching sequences, and optional illuminated push‑button accessories.
The document provides detailed technical specifications, ordering codes, wiring diagrams, and installation notes, including recommended ventilation gaps and mechanical life ratings.
| Rated current (max peak) | 16 A (30 A peak) |
|---|---|
| Rated voltage / Maximum switching voltage | 250 V / 400 V AC |
| Contact material | AgNi |
| Coil nominal voltage options | AC: 8‑12‑24‑48‑110‑120‑230‑240 V; DC: 12‑24‑48‑110 V |
| Mechanical life | 300 million cycles |
The minimum switching load is 1 000 mW (10 / 10).
Six different switching sequences are available.
The relays are rated IP20.
A gap of 9 mm between adjacent relays is suggested.