Octal Industrial Relays
Octal Industrial Relays — C42 / C43
Octal-base plug-in industrial relays · 2-pole DPDT (C42) and 3-pole 3PDT (C43) · 10 A / 250 V AC
Tecnomatic Series C octal industrial relays — C42 is the 2-pole DPDT variant (8-pin octal base, plugs into ZVE8) and C43 is the 3-pole 3PDT variant (11-pin octal base, plugs into ZVE11). Catalog frame C4 with 10 A rated current, 20 A maximum instantaneous, Ag-Ni contacts. Coil power 2.4 VA AC / 1.4 W DC.
Key Features
- ▸Octal-base plug-in (8-pin C42 / 11-pin C43)
- ▸Rated 10 A / 250 V AC (max switched 400 V AC)
- ▸Ag-Ni contact material
- ▸Operating temperature −10 to +60 °C
- ▸Mechanical life 2 × 10⁷ ops · Electrical life 3 × 10⁵ ops
- ▸Switching frequency 30000 ops/hr no-load · 1800 ops/hr rated
Spec Table
Octal Industrial Relays — 9 models
| Box SKU | Series | Coil Voltage | Contact Configuration | Compatible Socket |
|---|---|---|---|---|
| REL-C42-12VAC | C42 | 12 V AC, 50/60 Hz | 2-pole DPDT (CO) | ZVE8 (ES8 octal) |
| REL-C42-12VDC | C42 | 12 V DC | 2-pole DPDT (CO) | ZVE8 (ES8 octal) |
| REL-C42-24VDC | C42 | 24 V DC | 2-pole DPDT (CO) | ZVE8 (ES8 octal) |
| REL-C42-110VAC | C42 | 110 V AC, 50/60 Hz | 2-pole DPDT (CO) | ZVE8 (ES8 octal) |
| REL-C42-220VAC | C42 | 220 V AC, 50/60 Hz | 2-pole DPDT (CO) | ZVE8 (ES8 octal) |
| REL-C43-12VDC | C43 | 12 V DC | 3-pole 3PDT (CO) | ZVE11 (ES11 11-pin) |
| REL-C43-24VDC | C43 | 24 V DC | 3-pole 3PDT (CO) | ZVE11 (ES11 11-pin) |
| REL-C43-110VAC | C43 | 110 V AC, 50/60 Hz | 3-pole 3PDT (CO) | ZVE11 (ES11 11-pin) |
| REL-C43-220VAC | C43 | 220 V AC, 50/60 Hz | 3-pole 3PDT (CO) | ZVE11 (ES11 11-pin) |
Use Cases
Typical Applications
Motor starter logic
DPDT / 3PDT switching for star-delta, reversing, and sequenced starters.
Machine control panels
Field-replaceable plug-in relays for production-line control circuits.
Process automation
Multi-pole switching of valves, solenoids, and indicator circuits.
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