The 3 NO + 2 NC contact arrangement gives you three normally-open and two normally-closed poles, which is a common pattern for control circuits that need to switch multiple loads or interlocks simultaneously. The utilisation categories — AC-15, AC-14, and DC-13 — tell you it is rated for switching electromagnetic loads (contactors, relays, solenoids) at currents well below the contactor's own main pole rating. AC-15 covers inductive loads above 72 VA; AC-14 covers electromagnetic loads below 72 VA; DC-13 covers DC solenoids and relays. This is a control-circuit relay, not a power-switching contactor — it lives in the panel wiring, not the motor circuit.
TeSys CAD326SDS207 control relay, 3NO+2NC, 72 V DC, obsolete
Schneider Electric TeSys CAD control relay, 3 NO + 2 NC, 690 V, 72 V DC standard coil, IP20 front face, obsolete.
Specifications
| Parameter | Value |
|---|---|
| Product / component type | Control relay |
| Series / range | TeSys |
| Application | Control circuit |
| Parameter | Value |
|---|---|
| Rated operational voltage (Ue) | 10 MOhm |
| Utilisation category | AC-15 DC-13 AC-14 |
| Parameter | Value |
|---|---|
| IP degree of protection | IP20 front face conforming to IEC 60529 |
| Operating altitude | 0...3000 m |
| Mechanical robustness | Shocks control relay open: 10 Gn for 11 ms conforming to IEC 60068-2-27 Shocks control relay closed: 15 Gn for 11 ms conforming to IEC 60068-2-27 Vibrations control relay open: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6 Vibrations control relay closed: 4 Gn, 5...300 Hz conforming to IEC 60068-2-6 |
| Protective treatment / pollution degree | TH conforming to IEC 60068 |
| Fire resistance | 850 °C conforming to IEC 60695-2-1 |
| Flame retardance | V0 conforming to UL 94 |
| Parameter | Value |
|---|---|
| Standards | EN 45545: R22 HL3 EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 CSA C22.2 No 60947-4-1 |
| Parameter | Value |
|---|---|
| Width | 45 mm |
| Height | 77 mm |
| Depth | 93 mm |
Product details
Frequently asked questions
What is the closest replacement for CAD326SDS207?
No official successor order code is listed for this part. A replacement would need to match the 3 NO + 2 NC contact configuration, 72 V DC coil, and TeSys D footprint. A current TeSys D control relay with those parameters would be the starting point for a cross-reference, but pin compatibility and terminal layout should be verified against the original panel wiring.
What compliance documentation is available for CAD326SDS207?
The relay carries certifications to EN 45545 R22 HL3 (railway fire safety), EN/IEC 60947-4-1 and 60947-5-1 (control circuit devices), UL 60947-4-1, and CSA C22.2 No 60947-4-1. It also meets IEC 60695-2-1 for glow-wire resistance at 850 °C and UL 94 V0 for flame retardance. Protective treatment is TH per IEC 60068 for tropical environments.
