Terminal Blocks - Barrier Blocks

Image Part Number Description / PDF Quantity Rfq
HE42ST/05

HE42ST/05

Altech Corporation

EUROSTRIPPLUG 5P 10MMPS FLAT BAS

200

HE42BU/12

HE42BU/12

Altech Corporation

EUROSTRIP SOCKET12P10MMPS FLAT B

100

40.405

40.405

Altech Corporation

TERM STRIP PNL MNT ATS6/5 5 P 12

200

40.511

40.511

Altech Corporation

TERM STRIP PNL MNT ATSF6/11 11 P

0

HE16HWPR/04

HE16HWPR/04

Altech Corporation

EUROSTRIP 4P15MM STANDOFF 63A 60

400

HE16WPR/07

HE16WPR/07

Altech Corporation

EUROSTRIP 7P15MM FLATBASE 63A 30

0

HE42SST/03

HE42SST/03

Altech Corporation

EUROSTRIPPLUG 3P 10MMPS STANDOFF

1500

40.704

40.704

Altech Corporation

TERM STRIP PNL MNT ATSF16/4 4 P

560

HE6WPR/03

HE6WPR/03

Altech Corporation

EUROSTRIP 3P12MM FLAT BASE 40A 3

100

MT-2105

MT-2105

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

0

HE1HWPR/05

HE1HWPR/05

Altech Corporation

EUROSTRIP 5P 8MM STANDOFF 20A 60

300

HE42BU/07

HE42BU/07

Altech Corporation

EUROSTRIP SOCKET 7P10MMPS FLAT B

0

HE42SBU/12

HE42SBU/12

Altech Corporation

EUROSTRIP SOCKET12P10MMPS STANDO

150

HE42SST/04

HE42SST/04

Altech Corporation

EUROSTRIPPLUG 4P 10MMPS STANDOFF

700

40.411

40.411

Altech Corporation

TERM STRIP PNL MNT ATS6/11 11 P

200

MT-2109

MT-2109

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

0

HE6HWPR/02

HE6HWPR/02

Altech Corporation

EUROSTRIP 2P12MM STANDOFF 40A 60

2600

HE42BU/06

HE42BU/06

Altech Corporation

EUROSTRIP SOCKET 6P10MMPS FLAT B

650

40.510

40.510

Altech Corporation

TERM STRIP PNL MNT ATSF6/10 10 P

275

40.105

40.105

Altech Corporation

TERM STRIP PNL MNT ATSF1.5/5 5 P

0

Terminal Blocks - Barrier Blocks

1. Overview

Barrier blocks are modular electrical connectors used to securely join two or more wires. They consist of a conductive metal strip housed in an insulating body with screw or spring-based clamping mechanisms. These components play a critical role in industrial electrical systems by enabling reliable signal and power transmission while simplifying maintenance and modifications.

2. Main Types & Functional Classification

TypeFunctional FeaturesApplication Examples
Screw-Type Barrier BlocksMechanical screw clamping system with high contact forceIndustrial control panels, HVAC systems
Spring-Type Terminal BlocksPush-in spring clamping for quick installationAutomation equipment, test benches
Barrier Strips with Insulation DisplacementConnects wires without removing insulationTelecom equipment, field wiring
High-Voltage Barrier BlocksExtended creepage distances and reinforced insulationPower distribution units, renewable energy systems

3. Structure & Components

Typical construction includes: - Conductive element (phosphor bronze or brass with tin plating) - Insulating housing (PA66 or PBT thermoplastic) - Clamping mechanism (M3-M5 screws or compression springs) - Mounting flanges for DIN rail or panel mounting - Optional features: test points, marking areas, finger protection

4. Key Technical Specifications

ParameterImportance
Rated Current (5-300A)Determines power transmission capacity
Withstand Voltage (500V-10kV)Ensures electrical safety
Insulation Resistance (>10^12 )Maintains signal integrity
Operating Temperature (-60 C to +150 C)Defines environmental suitability
Vibration Resistance (up to 15g)Guarantees mechanical stability

5. Application Areas

Primary industries include: - Industrial automation (PLC cabinets, motor controls) - Energy systems (solar inverters, battery storage) - Transportation (railway control systems) - Building technology (HVAC, emergency lighting) - Test & measurement equipment

6. Leading Manufacturers & Products

ManufacturerRepresentative Product
Phoenix ContactPT 10-2.5/HC series
Weidm llerSAM 41 series
ABBUT 2.5-BK series
TE ConnectivityCB series barrier strips
SchurterK1 series with fuse integration

7. Selection Recommendations

Key considerations: - Match current/voltage ratings with system requirements - Environmental factors (temperature, vibration) - Wire size compatibility (AWG/metric) - Installation space constraints - Maintenance accessibility - Compliance with standards (IEC 60947-7)

Case Study: In industrial automation control cabinets, Phoenix Contact's PT 10-2.5/HC series provides reliable 24V DC signal connections with tool-free push-in wiring.

8. Industry Trends

Emerging developments: - Miniaturization for compact control systems - Integrated diagnostics and condition monitoring - Increased creepage distances for EV charging infrastructure - Halogen-free materials for improved fire safety - Smart terminal blocks with IoT connectivity

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