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ZS25-PE – 25mm SCREW EARTH TERMINAL
TE Connectivity 1SNK512150R0000 ZS25-PE is a green and yellow 25 mm² screw clamp protective earth terminal block with a screwless DIN rail contact for reliable industrial grounding and bonding applications.
£3.69
Why Choose the TE Connectivity ZS25-PE 25 mm² Screw Earth Terminal?
The TE Connectivity 1SNK512150R0000 ZS25-PE is a heavy-duty screw clamp protective earth terminal block designed to provide a secure connection between electrical conductors and the DIN rail protective earth system. Part of the TE Connectivity ENTRELEC SNK series, it is engineered for industrial power and signal installations where dependable protective earthing is essential.
The ZS25-PE supports flexible and rigid stranded conductors from 0.5–25 mm², with rigid stranded conductors up to 3 AWG. Its protective earth connection uses a screwless rail contact, providing a secure, non-operator-dependent connection to the DIN rail while the field conductors are terminated using robust screw clamp connections.
With a 12 mm terminal spacing, two connection positions and a short-time withstand current of 1920 A for 1 s, the ZS25-PE is designed for demanding industrial earthing applications. Its green/yellow polyamide housing, IP20 protection, UL 94V-0 flammability rating and wide -55–110 °C operating temperature range make it suitable for control panels, switchgear, machinery and power distribution equipment.
Key Advantages
- Dedicated protective earth terminal for industrial power and signal wiring.
- Supports conductors up to 25 mm² / 3 AWG.
- 1920 A short-time withstand current for 1 s provides robust fault-current capability.
- Screwless DIN rail contact creates a secure, non-operator-dependent protective earth connection.
- Green/yellow housing provides immediate protective earth identification.
- Same profile as the corresponding ZS25 terminal for aligned marking and compatible end-section arrangements.
Key Features
- TE Connectivity ENTRELEC SNK series.
- ZS25-PE protective earth terminal block.
- Manufacturer part number 1SNK512150R0000.
- Screw clamp conductor termination.
- Screwless protective earth rail contact.
- 25 mm² conductor capacity.
- 12 mm product spacing.
- 2 connection positions with one circuit and one level.
- 1920 A short-time withstand current at 1 s.
- 8000 V IEC impulse withstand voltage.
- DIN rail mounting on TH35-7.5 and TH35-15 profiles.
- IP20 protection and UL 94V-0 rated polyamide housing.
Reliable Protective Earthing for Industrial Installations
Protective earth terminal blocks provide a dedicated connection between equipment conductors and the grounded DIN rail, helping create a dependable protective bonding path within electrical panels. The ZS25-PE combines high-capacity 25 mm² screw clamp connections with a screwless rail contact designed to maintain a secure protective earth connection without relying on an additional operator-adjusted rail screw.
The ZS25-PE also shares its profile with the corresponding ZS25 terminal, supporting aligned marking and consistent end-section arrangements within mixed terminal assemblies. Its high short-time withstand capability makes it particularly suitable for industrial control cabinets, switchgear and power distribution systems where the protective earth connection must safely accommodate substantial fault currents.
Typical Applications
- Protective earth and equipment grounding circuits.
- Industrial electrical control panels.
- Switchgear and power distribution equipment.
- Automation and machinery control cabinets.
- Motor control centres and industrial drives.
- High-capacity protective bonding connections.
- Power and signal distribution systems.
- OEM machinery and industrial equipment.
Technical Specifications
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| Number of Levels | 1 | |
|---|---|---|
| Product Series | TE SNK | |
| Connection | Spring clamp | |
| Terminal Type | Earth (PE) | |
| Conductor Size | 25 mm² | |
| Colour | Green | |
| Manufacturer | TE Connectivity | |
| Brand / product family | ENTRELEC | |
| Series | SNK | |
| Model | ZS25-PE | |
| Manufacturer part number | 1SNK512150R0000 | |
| Product type | Screw clamp protective earth terminal block | |
| Block function | Ground / protective earth | |
| Connection type | Screw terminal | |
| DIN rail earth contact | Screwless rail connection | |
| Wire size | 25 mm² / up to 3 AWG | |
| Number of positions | 2 | |
| Number of circuits | 1 | |
| Number of levels | 1 | |
| Gauge type | A6-B6 | |
| Product spacing | 12 mm | |
| Primary colour | Green / yellow | |
| Housing material | Polyamide | |
| Short-time withstand current | 1920 A for 1 s | |
| Maximum dielectric withstand voltage | 2200 V | |
| IEC impulse withstand voltage | 8000 V | |
| Flexible conductor capacity | 0.5–25 mm² | |
| Rigid stranded conductor capacity | 0.5–25 mm² / 24–3 AWG | |
| Insulated ferrule capacity | 0.5–16 mm² / 24–8 AWG | |
| Non-insulated ferrule capacity | 0.5–16 mm² / 24–4 AWG | |
| Two flexible conductors per screw clamp | 0.5–10 mm² | |
| Two rigid stranded conductors per screw clamp | 0.5–10 mm² / 20–10 AWG | |
| Twin ferrule capacity | 0.5–10 mm² / 20–10 AWG | |
| Wire stripping length | 13.5 mm | |
| Tool size | 5.5 mm | |
| Protection rating | IP20 | |
| UL flammability rating | UL 94V-0 | |
| DIN rail mounting | TH35-7.5 / TH35-15 | |
| Circuit application | Power and signal | |
| Installation temperature | -5–40 °C | |
| Operating temperature | -55–110 °C | |
| Height | 63.6 mm | |
| Width / spacing | 12 mm | |
| Depth | 48.9 mm | |
| Length | 48.9 mm | |
| Product weight | 38 g |
Frequently Asked Questions
What is the TE Connectivity ZS25-PE 1SNK512150R0000 used for?
The ZS25-PE is a protective earth terminal block used to connect equipment grounding conductors securely to the DIN rail protective earth system in industrial control panels, switchgear, machinery and power distribution equipment.
What conductor sizes can the ZS25-PE accept?
The ZS25-PE accepts flexible and rigid stranded conductors from 0.5–25 mm², with rigid stranded conductors up to 3 AWG supported.
How does the ZS25-PE connect to the DIN rail?
The terminal uses a screwless rail contact to establish the protective earth connection to the DIN rail. This provides a secure, non-operator-dependent rail connection while the field conductors are terminated using screw clamps.
What is the short-time withstand current of the ZS25-PE?
The TE Connectivity 1SNK512150R0000 has a short-time withstand current rating of 1920 A for 1 s, making it suitable for demanding industrial protective earth applications.
How is the ZS25-PE mounted?
The 1SNK512150R0000 is designed for DIN rail mounting and is compatible with standard TH35-7.5 and TH35-15 rail profiles.
Trusted for Industrial Protective Earth Connections
TE Connectivity ENTRELEC SNK protective earth terminals are designed for secure industrial grounding and bonding, with the ZS25-PE combining high-capacity 25 mm² screw clamp conductor connections, a non-operator-dependent rail contact and robust short-circuit withstand performance for demanding electrical installations.
