TE Connectivity 1SNK506151R0000 ZS6-3S-PE is a green and yellow 6 mm three-position screw clamp protective earth terminal block with DIN rail mounting for industrial grounding applications.
Why Choose the TE Connectivity ZS6-3S-PE Screw Clamp Terminal Block?
The TE Connectivity 1SNK506151R0000 ZS6-3S-PE is a robust protective earth screw clamp terminal block designed to provide reliable grounding connections in industrial electrical installations. As part of the TE Connectivity ENTRELEC SNK series, this green and yellow terminal features three connection positions and a secure DIN rail earth contact for control panels, machinery and electrical distribution systems.
The ZS6-3S-PE combines proven screw clamp conductor termination with a screwless rail connection, helping provide a dependable protective earth path without relying on operator-controlled rail-contact tightening. Its green and yellow polyamide housing provides immediate identification as a protective earth terminal, while its profile is designed to align with corresponding ZS6-3S terminal blocks for neat and consistent panel assemblies.
With 6 mm spacing and three connection positions, the ZS6-3S-PE accepts flexible conductors from 0.22–6 mm² and rigid stranded conductors from 0.2–6 mm². It mounts on standard TH35 DIN rails and offers a 480 A short-time withstand current for 1 s, making it a dependable solution for protective earth wiring in demanding industrial environments.
Key Advantages
Dedicated protective earth terminal block with three connection positions.
6 mm spacing provides compact installation on industrial DIN rails.
Proven screw clamp connections provide secure conductor termination.
Screwless rail contact provides a reliable connection to the protective earth DIN rail.
Green and yellow housing enables immediate protective earth identification.
Wide -55–110 °C operating temperature range for demanding industrial environments.
Key Features
TE Connectivity ENTRELEC SNK series.
ZS6-3S-PE protective earth terminal block.
Manufacturer part number 1SNK506151R0000.
Three connection positions with one circuit and one level.
6 mm product spacing.
Secure screw clamp conductor connections.
Green and yellow polyamide housing.
DIN rail mounting on TH35-7.5 and TH35-15 profiles.
480 A short-time withstand current for 1 s.
2000 V maximum dielectric withstand voltage.
8000 V IEC impulse withstand voltage.
IP20 protection and UL 94V-0 rated housing material.
Reliable Protective Earth Connections for Industrial Panels
Protective earth terminal blocks provide a dedicated grounding path between electrical conductors and the DIN rail, helping maintain electrical safety in machinery and control systems. The ZS6-3S-PE uses a screwless rail contact that securely engages with the DIN rail, while conventional screw clamps provide dependable termination of the connected protective earth conductors.
The three-position design provides additional connection flexibility while retaining a compact 6 mm footprint. Its profile is aligned with the ZS6-3S terminal block family, allowing protective earth and feed-through terminals to be installed together in organised modular assemblies with consistent marking and accessory arrangements.
Typical Applications
Protective earth and grounding circuits.
Industrial electrical control panels.
Automation and machinery control cabinets.
Three-connection grounding and distribution points.
Switchgear and electrical distribution equipment.
Process control and instrumentation panels.
OEM machinery and industrial equipment.
Technical Specifications
Manufacturer
TE Connectivity
Brand / product family
ENTRELEC
Series
SNK
Model
ZS6-3S-PE
Manufacturer part number
1SNK506151R0000
Product type
Protective earth screw clamp terminal block
Block function
Ground / protective earth
Connection type
Screw clamp
Number of positions
3
Number of circuits
1
Number of levels
1
Product spacing
6 mm
Primary colour
Green and yellow
Housing material
Polyamide
Flexible conductor capacity
0.22–6 mm²
Rigid stranded conductor capacity
0.2–6 mm² / 24–10 AWG
Insulated ferrule capacity
0.22–4 mm² / 24–12 AWG
Non-insulated ferrule capacity
0.22–4 mm² / 24–12 AWG
Twin ferrule capacity
0.22–2.5 mm² / 24–14 AWG
Wire stripping length
10.5 mm
Tool size
4 mm
Short-time withstand current
480 A for 1 s
Maximum dielectric withstand voltage
2000 V
IEC impulse withstand voltage
8000 V
Protection rating
IP20
UL flammability rating
UL 94V-0
DIN rail mounting
TH35-7.5 / TH35-15
Operating temperature
-55–110 °C
Installation temperature
-5–40 °C
Height
68.5 mm
Depth
48.3 mm
Product length
48.3 mm
Weight
16.2 g
Frequently Asked Questions
What is the TE Connectivity ZS6-3S-PE 1SNK506151R0000 used for?
The ZS6-3S-PE is a protective earth terminal block designed to connect grounding conductors securely to the DIN rail in industrial control panels, machinery and electrical distribution equipment.
How many connection positions does the ZS6-3S-PE have?
The 1SNK506151R0000 has three connection positions, providing additional wiring flexibility while maintaining a compact 6 mm terminal spacing.
What conductor sizes can the ZS6-3S-PE accept?
The terminal accepts flexible conductors from 0.22–6 mm² and rigid stranded conductors from 0.2–6 mm².
How does the ZS6-3S-PE connect to the DIN rail?
The ZS6-3S-PE uses a screwless rail contact designed to provide a secure protective earth connection when the terminal is mounted onto a compatible TH35 DIN rail.
What temperature range is the ZS6-3S-PE designed for?
The TE Connectivity 1SNK506151R0000 has an operating temperature range of -55–110 °C, making it suitable for demanding industrial electrical environments.
Trusted for Industrial Grounding Connections
TE Connectivity ENTRELEC SNK terminal blocks are designed for reliable industrial wiring, with the ZS6-3S-PE combining three screw clamp conductor connections with a secure DIN rail earth contact for dependable protective grounding in machinery, automation and electrical distribution systems.
Manufacturer
TE Connectivity
Brand / product family
ENTRELEC
Series
SNK
Model
ZS6-3S-PE
Manufacturer part number
1SNK506151R0000
Product type
Protective earth screw clamp terminal block
Block function
Ground / protective earth
Connection type
Screw clamp
Number of positions
3
Number of circuits
1
Number of levels
1
Product spacing
6 mm
Primary colour
Green and yellow
Housing material
Polyamide
Flexible conductor capacity
0.22–6 mm²
Rigid stranded conductor capacity
0.2–6 mm² / 24–10 AWG
Insulated ferrule capacity
0.22–4 mm² / 24–12 AWG
Non-insulated ferrule capacity
0.22–4 mm² / 24–12 AWG
Twin ferrule capacity
0.22–2.5 mm² / 24–14 AWG
Wire stripping length
10.5 mm
Tool size
4 mm
Short-time withstand current
480 A for 1 s
Maximum dielectric withstand voltage
2000 V
IEC impulse withstand voltage
8000 V
Protection rating
IP20
UL flammability rating
UL 94V-0
DIN rail mounting
TH35-7.5 / TH35-15
Operating temperature
-55–110 °C
Installation temperature
-5–40 °C
Height
68.5 mm
Depth
48.3 mm
Product length
48.3 mm
Weight
16.2 g
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...