This document is in PDF format and mainly introduces the related information of the 40 series relays, including the product models, specifications, functions, etc.
This document provides detailed technical data for a family of general‑purpose relays identified by the model numbers C2‑T21, C3‑T31, C7‑T21 and C10‑T13. It lists contact types, coil voltages, switching current and voltage ratings, and optional features such as LED indication and free‑wheeling diodes.
The specifications include nominal coil power, operating and release times, isolation standards, dielectric strength, and maximum switching capabilities for both AC and DC loads. Additional information on standard and special relay types, contact materials, and mechanical dimensions is also included.
| Nominal coil power (AC) | 2.4 VA |
|---|---|
| Maximum switching current | 10 A |
| Peak inrush current (20 ms) | 30 A |
| Maximum switching voltage (pollution 3) | 250 V |
| Maximum switching voltage (pollution 2) | 400 V |
| Dielectric strength (contacts/coil) | 2.5 kV |
| Operate time | 20 ms |
| Release time | 8 ms |
The nominal coil power is 2.4 VA for AC coils and 1.3 W for DC coils.
All listed relay types have a maximum switching current of 10 A.
The relays can switch up to 250 V under pollution class 3 and up to 400 V under pollution class 2.
The dielectric strength between contacts and coil is rated at 2.5 kV.