CONTA-CLIP
PZK 3750
The PZKZ 3750 series features double‑level PCB-mounted terminals built around a tension‑spring (spring‑clamp) connection mechanism, typically offered in 5.08 mm pitch configurations and available from 2 up to 12 poles. For example, the 12‑pole version spans approximately 61.7 mm, while pin diameter is 0.7 mm (requiring a ≈ 1.3 mm drill hole), and pin length is approximately 4 mm. Rated for 12 A at 250 V, with impulse voltage resistance of 2 kV, overvoltage category III and contamination class 3. Conductors from AWG 28 up to AWG 14 (0.08–2.5 mm², ferrules up to 1.5 mm²) are supported, with 45°/135° angled wire entry. The housing is UL 94 V‑0 polyamide 6.6, CTI 600, insulation resistance ≥ 1 × 10¹³ Ω·cm, glow‐wire ratings GWFI 850 °C / GWIT 775 °C, and solder‑compatible via wave‑soldering at 265 °C for 3–4 s. It supports approximately 10 connection cycles and offers UL 1059, cUL CSA 22.2 No. 158 and VDE approval.
The PZKZ 3750 tension‑spring terminals provide a rapid, tool‑free wiring solution ideal for moderate-current applications in industrial electronics. The double‑deck layout allows efficient utilisation of PCB space while accommodating multiple potential levels, such as separate control and supply buses, within a compact footprint. The spring‑clamp system ensures secure, vibration‑proof connections for device wiring in relay sockets, automation modules, sensor/actuator interface boards, and machine control PCBs. Angled wire entry promotes ease of installation in tight vertical spaces within control cabinets. Combined with high safety ratings and global approvals, these terminals suit device manufacturers and panel builders requiring reliable, service‑friendly interfaces for long-term field installations.
- 2 to 12 poles
- Spring Clamp Connection
- 12 A at 250 V
Selected variant
Technical data
General Data |
|
|---|---|
| Type | Double-level PCB terminal |
| Pitch | 5 mm |
| Colour | Green |
| Number of poles | 2 |
| Approvals | UL, cUL, VDE |
Ratings |
|
| Rated current | 12 A |
| Rated voltage | 250 V |
| Rated cross section | 2.5 mm² |
| Rated impulse voltage | 2 kV |
| Overvoltage category | III |
| Contamination degree | 3 |
Dimensions |
|
| Length | 21 mm |
| Width | 11.7 mm |
| Height | 25.7 mm |
| Width left | 3.7 mm |
| Width right | 3 mm |
| Drillhole diameter | 1.3 mm |
| Diameter of the connection pin | 0.7 mm |
| Length of pin | 4 mm |
Connection Data |
|
| Connector type/principle | Spring clamp |
| Number of levels | 2 |
| Angle of PCB/wire connection | 45°/135° (diagonally upwards) |
| Type of attachment to PCB | Connecting contact |
| Electrical connection type to PCB | Solder |
| Cross section single wire from | 0.08 mm² |
| Cross section single wire to | 2.5 mm² |
| Cross section stranded wire from | 0.14 mm² |
| Cross section stranded with ferrule to | 1.5 mm² |
| Cross section stranded wire to | 2.5 mm² |
| Cross section stranded with ferrule from | 0.14 mm² |
| Rated wire cross section to (AWG) | 14 |
| Rated wire cross section from (AWG) | 28 |
*Invisible Heading* |
|
|---|---|
| Stripping length | 6 mm |
Materials |
|
| Housing material | Polyamide 6.6 |
| Flammability class | UL94-V0 |
| Operating temperature from | -30 °C |
| Operating temperature to | 105 °C |
| Main spring | Stainless steel |
| Solder lug | Copper alloy |
Approvals |
|
| UL test standard | UL 1059 |
| Rated voltage UL | 300 V |
| Rated current UL | 16 A |
| cUL test standard | CSA 22.2 No.158 |
| Rated voltage cUL | 300 V |
| Rated current cUL | 16 A |
| VDE test standard | DIN EN 60998 |
| Rated voltage VDE | 250 V |
| Rated current VDE | 12 A |
| Recommended wave solder duration max | 4 s |
| Recommended wave solder duration min | 3 s |
| Recommended wave soldering temperature | 265 °C |
| Tariff code | 85369010 |
| Pack size | 50 |
| Weight | 5.1 g |
| Connection cycles acc. to standard | 10 |
| Country of origin | QU |
| Current creepage resistance | CTI 600 |
| Glow wire flammability index (GWFI) | GWFI 850 |
| Glow wire ignition temperature (GWIT) | GWIT 775 |
| GWFI after-glow time | 30 s |
| GWIT exposure time | 5 s |
| Insulation resistance | 1*10^13 Ω x cm |
Product description
The PZKZ 3750 series features double‑level PCB-mounted terminals built around a tension‑spring (spring‑clamp) connection mechanism, typically offered in 5.08 mm pitch configurations and available from 2 up to 12 poles. For example, the 12‑pole version spans approximately 61.7 mm, while pin diameter is 0.7 mm (requiring a ≈ 1.3 mm drill hole), and pin length is approximately 4 mm. Rated for 12 A at 250 V, with impulse voltage resistance of 2 kV, overvoltage category III and contamination class 3. Conductors from AWG 28 up to AWG 14 (0.08–2.5 mm², ferrules up to 1.5 mm²) are supported, with 45°/135° angled wire entry. The housing is UL 94 V‑0 polyamide 6.6, CTI 600, insulation resistance ≥ 1 × 10¹³ Ω·cm, glow‐wire ratings GWFI 850 °C / GWIT 775 °C, and solder‑compatible via wave‑soldering at 265 °C for 3–4 s. It supports approximately 10 connection cycles and offers UL 1059, cUL CSA 22.2 No. 158 and VDE approval.
The PZKZ 3750 tension‑spring terminals provide a rapid, tool‑free wiring solution ideal for moderate-current applications in industrial electronics. The double‑deck layout allows efficient utilisation of PCB space while accommodating multiple potential levels, such as separate control and supply buses, within a compact footprint. The spring‑clamp system ensures secure, vibration‑proof connections for device wiring in relay sockets, automation modules, sensor/actuator interface boards, and machine control PCBs. Angled wire entry promotes ease of installation in tight vertical spaces within control cabinets. Combined with high safety ratings and global approvals, these terminals suit device manufacturers and panel builders requiring reliable, service‑friendly interfaces for long-term field installations.
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