TE Connectivity 1SNK705031R0000 Find all the features of the ZK2.5 terminal block with the added option of distributing…

Name: TE Connectivity ZK2.5-3P terminal block for 3-conductor distribution, rail mount, spring clamp, grey/black.
Brand: TE Connectivity
SKU: 1SNK705031R0000
Availability: InStock

Alternate Item Number: 1SNK705031R0000

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Specification Sheet

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Overview

The TE Connectivity ZK2.5-3P terminal block (SKU 1SNK705031R0000) is a high-density, feed-through terminal block designed for efficient 3-conductor distribution and branching in industrial electrical systems. Engineered for DIN rail mounting (TH35-7.5 or TH35-15 per IEC 60715), this terminal block simplifies wiring complexity by consolidating multiple conductor paths into a single point, reducing panel clutter and improving system organization. Key specifications include a rated cross-section of 2.5 mm², supporting flexible conductors from 0.22 to 2.5 mm² and rigid conductors from 0.2 to 4 mm². The PI-spring clamp connection ensures secure, vibration-resistant terminations without tools, accommodating insulated ferrules, twin ferrules (0.22–0.5 mm²), and bare conductors. Rated for 24 A main circuit current with a short-time withstand current of 300 A for 1 second, the ZK2.5-3P handles up to 1000 V rated voltage and 8000 V impulse withstand voltage, making it suitable for low-voltage power distribution and control applications. Available in grey (ZK2.5-3P) and black (ZK2.5-3P-BK) variants, the terminal block features a compact 5.2 mm width, 64.7 mm height, and 40.2 mm depth, with a net weight of 7.4 g. It operates reliably across an ambient temperature range of -55°C to +110°C and meets IP20 protection standards per IEC 60529. The dielectric test voltage is 2200 V, and the flammability rating is UL94 V0. Wire stripping length is standardized at 11.0 mm for consistent installation. Ideal for control panels, automation systems, and power distribution units, the ZK2.5-3P terminal block streamlines electrical infrastructure by enabling clean, organized conductor branching. Its spring clamp technology reduces installation time and maintenance costs while ensuring long-term reliability in demanding industrial environments. The terminal block is part of TE Connectivity’s SNK Series, designed for seamless integration into standard DIN rail enclosures.

3-conductor feed-through distribution with PI-spring clamp connection
Rated 24A main circuit current, 1000V rated voltage, 300A short-time withstand (1s)
Supports flexible (0.22–2.5mm²) and rigid (0.2–4mm²) conductors, including ferrules
Compact 5.2mm width, DIN rail mount (TH35-7.5/15), IP20 protection
Operating temperature: -55°C to +110°C; UL94 V0 flammability rating

Specifications

Connection Type	Screw Terminal
Mounting Type	Rail Mount
Poles	3
Series	ZK2.5

FG1

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SMO256-9-Z

O Type Vinyl Sleeve Markers - Color White, Legend Z, Wire Range 10-6

SMC244-4-DH

SMC Series Vinyl Sleeve Clip On Marker - Open Clip-On, Recommended Wire Diameter .197 - .244 inches, Wire Range 8-6AWG, Color Yellow, Legend -, Packaging Strips

PS-60

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ACS380-040S-07A2-4

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General Electric Control Products. Nema Power Devices. Ol Relay 610F8364

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CUSTOMCARD

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BTWD 4N

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ASBB400

The nVent ASBB400 is a high-performance industrial electrical component designed for demanding power distribution and control applications. Engineered for durability and efficiency, this product ensures reliable operation in harsh environments. Its robust construction and advanced features make it ideal for industrial facilities, manufacturing plants, and utility operations. The ASBB400 is built to meet stringent safety and performance standards, providing long-term reliability and reduced downtime. Whether for new installations or upgrades, this component delivers consistent performance and peace of mind.

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Frequently Asked Questions

What is the rated voltage for this terminal block?

The rated voltage for the main circuit is 1000 V.

What is the operating temperature range?

The ambient air temperature for operation and storage is between -55 and +110 °C.

What types of wires can be connected to the main circuit?

It supports spring clamp connections for flexible, rigid, and ferruled wires ranging from 0.22 to 4 mm².

What is the rated current capacity?

The rated current for the main circuit is 24 A.

What DIN rail sizes are compatible with this terminal block?

It can be mounted on TH35-7.5 and TH35-15 mounting rails according to IEC 60715.

What is the wire stripping length required?

The required wire stripping length is 11.0 mm.

What is the degree of protection for the main terminals?

The main terminals have a degree of protection of IP20 according to IEC standards.

What is the insulation material used?

The insulation material used for this terminal block is Polyamide.

What is the rated short-time withstand current?

The rated short-time withstand current for 1 second is 300 A.

What is the dielectric test voltage?

The dielectric test voltage is 2200 V.

Frequently Asked Questions about TE Connectivity

What technical support does TE Connectivity offer?

TE Connectivity offers comprehensive technical support through multiple channels, including a dedicated technical hotline at 1-800-777-3300. The company provides advanced technical support with 3 dedicated support centers, a global technical hotline network, and delivers over 8,000 hours of technical training annually to ensure certified expertise across 25+ languages.

What environmental ratings do TE Connectivity products have?

TE Connectivity products feature robust environmental ratings across multiple standards, including NEMA Type 1, 2, 3, 3R, 4, 4X, 12, and 13 certifications, as well as IEC 60529 IP66 protection. Our enclosures are designed to withstand challenging industrial environments, with operating temperatures ranging from -40°C to 130°C, and include enhanced UV inhibitors for outdoor applications.

What certifications and standards do TE Connectivity products comply with?

TE Connectivity products meet rigorous international certifications and standards across industrial automation applications, including UL (United States), CSA (Canada), CE (European Community), and international safety standards. Our product lines are designed to comply with critical industrial certifications such as NEMA (Types 4, 4X, 6, 6P), IP ratings (IP65, IP66, IP67, IP69K), and industrial communication protocols including PROFINET, EtherNet/IP, and DeviceNet. We ensure comprehensive compliance through active participation in key industrial standards committees and maintaining ISO 9001 quality system certification.

What industries and applications are TE Connectivity products used for?

TE Connectivity products are engineered for critical industrial applications across multiple sectors, including industrial device manufacturing, automotive, robotics, food and beverage, material handling, alternative energy, and commercial vehicle industries. Their solutions span connectivity, power distribution, network communications, and sensor technologies that support complex industrial automation requirements, with a focus on robust connectivity solutions for challenging manufacturing environments.

What are the main product lines offered by TE Connectivity?

TE Connectivity offers a comprehensive range of industrial connectivity solutions including Cable Ties, Cable Cleats, Power Connectors, Grounding Connectors, Terminals, Safety Solutions, Identification Products, and Wiring Duct. Their product lines are designed for robust industrial applications, featuring various connection technologies like wave soldering, spring-cage connections, and mis-insertion protection across multiple electrical and connectivity categories.

What accessories are available for TE Connectivity products?

TE Connectivity offers a comprehensive range of communication and bus accessories for industrial automation systems, including communication terminal boards (CTB810, CTB811), bus extenders (horizontal and vertical models like cHBX01L/R, HBX01L/R, VBX01T/B), and bus terminators (TER800, TER810). These accessories are designed to enhance connectivity, power distribution, and communication capabilities for HN800 and CW800 controller systems, with options for left/right side mounting, power connections, and network termination.

How are TE Connectivity products typically installed?

TE Connectivity products are typically installed through professional commissioning services that include site audits, precise wiring verification, and both remote and on-site installation support. Our expert service engineers conduct comprehensive installation processes involving system verification, programming, communication testing, and personnel training to ensure optimal performance and reliability of the equipment.