Terminal Blocks - Barrier Blocks

Image Part Number Description / PDF Quantity Rfq
40.507

40.507

Altech Corporation

TERM STRIP PNL MNT ATSF6/7 7 P 1

50

HE10WPR/10

HE10WPR/10

Altech Corporation

EUROSTRIP10P15MM FLATBASE 50A 30

500

HE10WPR/02

HE10WPR/02

Altech Corporation

EUROSTRIP 2P15MM FLATBASE 50A 30

1050

HE4HNWPR/09

HE4HNWPR/09

Altech Corporation

EUROSTRIP 9P10MM STANDOFF 30A 60

550

HE42SBU/04

HE42SBU/04

Altech Corporation

EUROSTRIP SOCKET4P10MMPS STANDOF

900

HE4HNWPR/11

HE4HNWPR/11

Altech Corporation

EUROSTRIP11P10MM STANDOFF 30A 60

0

HE1WPR/07

HE1WPR/07

Altech Corporation

EUROSTRIP 7P 8MM FLAT BASE 20A 3

150

HE42SBU/07

HE42SBU/07

Altech Corporation

EUROSTRIP SOCKET 7P10MMPS STANDO

0

40.310

40.310

Altech Corporation

TERM STRIP PNL MNT ATSF2.5/10 10

400

HE10WPR/09

HE10WPR/09

Altech Corporation

EUROSTRIP 9P15MM FLATBASE 50A 30

175

HE1HWPR/10

HE1HWPR/10

Altech Corporation

EUROSTRIP10P 8MM STANDOFF 20A 60

0

HE10HWPR/11

HE10HWPR/11

Altech Corporation

EUROSTRIP11P15MM STANDOFF 50A 60

0

40.508

40.508

Altech Corporation

TERM STRIP PNL MNT ATSF6/8 8 P 1

250

HE42SST/12

HE42SST/12

Altech Corporation

EUROSTRIPPLUG12P 10MMPS STANDOFF

200

40.509

40.509

Altech Corporation

TERM STRIP PNL MNT ATSF6/9 9 P 1

0

HE1WPR/09

HE1WPR/09

Altech Corporation

EUROSTRIP 9P 8MM FLAT BASE 20A 3

150

40.404

40.404

Altech Corporation

TERM STRIP PNL MNT ATS6/4 4 P 12

1200

40.307

40.307

Altech Corporation

TERM STRIP PNL MNT ATSF2.5/7 7 P

100

HE42ST/12

HE42ST/12

Altech Corporation

EUROSTRIPPLUG 12P 10MMPS FLAT BA

450

MT-2119

MT-2119

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

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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