Description
ZK2.5-S
Entrelec ZK2.5-S PI-Spring disconnect (knife) terminal block, 2.5 mm², 5.2 mm pitch, with two Ø2 mm test sockets. Lever isolates the circuit for testing. Rated 20 A / 630 V. Screwless. Standards IEC 60947-7-1; UL 1059; CSA C22.2 No.158.
Key features
- Function: Disconnect (knife) push-in block with 2x Ø2 mm test sockets; -4P=4-pole, -R1=profile variant
- Rated cross-section: 2.5 mm² (26-12 AWG)
- Connection capacity: 0.2-4 mm² rigid/flexible (26-12 AWG)
- Rated voltage Ui: 630 V
- Rated current: 20 A
- Impulse withstand voltage: 6000 V
Full technical specifications are listed under Additional Information. Datasheet (PDF). Source: Entrelec Terminal Blocks SNK catalog.




