Auxiliary contact blocks add contacts for control, indication and interlocking functions. Select the block for the exact Iskra contactor series and the required number of normally open (NO) and normally closed (NC) contacts.

Contactor and contact-block selection
| For contactor | Auxiliary contact block |
|---|---|
| K03 / K07 | ND2C — two-pole |
| K03 / K07 | ND4C — four-pole |
| KNL6 | NDL1 — two- and four-pole |
| KNL9, KNL12, KNL16, KNL18 | NDL2 — two- and four-pole |
| KNL22, KNL30 | NDL3 — two- and four-pole |
| KNL9, KNL12, KNL16, KNL18 | NPL1 — single-pole, side mounting |
| KNL22, KNL30 | NPL2 — single-pole, side mounting |
| KNL43, KNL63 | NDL4-.. — please enquire |
| KNL95–KNL630 | G350 — please enquire |
The block must match the contactor, mounting position and control-circuit rating. Confirm the complete type designation when ordering a replacement.
Contact Appel with the type designation and application details for product selection.