Contactors for Data Center PDU and UPS Systems: Selection Guide
AC-1 and AC-6a contactors for data center PDU and UPS systems: sizing, harmonic derating, coil selection, and endurance guidance for engineers. Shop at Stoklink.
The Schneider Electric VZN05 is an add-on auxiliary contact module for TeSys Mini-VARIO switch-disconnectors, fitting on one side of a VN12 or VN20 switch body. It carries a single late-make NO contact rated AC-15 to 690 V and DC-01 to 250 V, for remote signalling of switch position.
The late-make timing means the VZN05 contact closes only after the main poles have fully made, so it is the correct choice for a run-confirmation or interlock signal rather than a pre-close warning. For an early-break NC contact instead — useful for a fault or disconnect-warning circuit — use the VZN06 on the same VN12/VN20 body.
| Range | TeSys |
|---|---|
| Device short name | VZN |
| Product or Component Type | Auxiliary contact block |
| Performance level | Standard |
| Contacts type and composition | 1 NO |
| Contact operation | Late-make |
| Product Compatibility | VN20, VN12 |
| Network type | AC, DC |
| Network Frequency | 50/60 Hz |
| Mounting Location | Left, Right |
| Range compatibility | TeSys TeSys VARIO VCFN switch disconnector |
|---|---|
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| [Uimp] rated impulse withstand voltage | 6 kV |
| [Ith] conventional free air thermal current | 6 A |
| [Ithe] conventional enclosed thermal current | 4 A |
| Mechanical durability | 50000 cycles |
| Electrical durability | 30000 cycles DC-11, 50000 cycles AC-21 |
| Connections - terminals | screw clamp terminals 2 0.001…0.002 in² (0.75…1.5 mm²) flexible - with cable end, screw clamp terminals 2 0.002…0.004 in² (1…2.5 mm²) solid |
| Tightening torque | 6.2 lbf.in (0.7 N.m) screw clamp terminals |
| Height | 1.8 in (45.5 mm) |
| Width | 0.5 in (12 mm) |
| Depth | 1.5 in (39 mm) |
| Net Weight | 0.04 lb(US) (0.02 kg) |
| Standards | IEC 60947-5 |
|---|---|
| Product Certifications | GL, CSA, UL |
| Protective treatment | TC |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Ambient Air Temperature for Operation | -4…122 °F (-20…50 °C) |
| Fire resistance | 1760 °F (960 °C) IEC 60695-2-1 |
| Part number | VZN05 |
|---|---|
| Type designation | VZN |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3389110760057 |
| Warranty (in months) | 18 |
|---|
| Country of origin | CZ |
|---|---|
| Shipping weight | 0.02 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of VZN is 6 A.
The rated operational voltage of VZN is 690 V AC.
The tariff (HS) code on file for VZN is 853690.
The EAN (GTIN) of VZN is 3389110760057.
VZN ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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