Terminal Blocks - Barrier Blocks

Image Part Number Description / PDF Quantity Rfq
CB6/4H/5S

CB6/4H/5S

Altech Corporation

CERAMIC EUROBLOCK 4P5PCS 30A 300

0

HE16HWPR/07

HE16HWPR/07

Altech Corporation

EUROSTRIP 7P15MM STANDOFF 63A 60

0

HE6HWPR/09

HE6HWPR/09

Altech Corporation

EUROSTRIP 9P12MM STANDOFF 40A 60

200

40.709

40.709

Altech Corporation

TERM STRIP PNL MNT ATSF16/9 9 P

0

HE1WPR/10

HE1WPR/10

Altech Corporation

EUROSTRIP10P 8MM FLAT BASE 20A 3

450

40.702

40.702

Altech Corporation

TERM STRIP PNL MNT ATSF16/2 2 P

0

HE4WPR/09

HE4WPR/09

Altech Corporation

EUROSTRIP 9P10MM FLAT BASE 30A 3

650

HE42ST/02

HE42ST/02

Altech Corporation

EUROSTRIPPLUG 2P 10MMPS FLAT BAS

0

HE42ST/03

HE42ST/03

Altech Corporation

EUROSTRIPPLUG 3P 10MMPS FLAT BAS

0

HE6WPR/10

HE6WPR/10

Altech Corporation

EUROSTRIP10P12MM FLAT BASE 40A 3

75

40.505

40.505

Altech Corporation

TERM STRIP PNL MNT ATSF6/5 5 P 1

500

HE42SBU/10

HE42SBU/10

Altech Corporation

EUROSTRIP SOCKET10P10MMPS STANDO

200

CB6/1

CB6/1

Altech Corporation

CERAMIC EUROBLOCK 1P 30A 300V 20

2700

HE42SST/10

HE42SST/10

Altech Corporation

EUROSTRIPPLUG10P 10MMPS STANDOFF

200

HE4WPR/07

HE4WPR/07

Altech Corporation

EUROSTRIP 7P10MM FLAT BASE 30A 3

200

HE42ST/06

HE42ST/06

Altech Corporation

EUROSTRIPPLUG 6P 10MMPS FLAT BAS

550

40.705

40.705

Altech Corporation

TERM STRIP PNL MNT ATSF16/5 5 P

120

40.303

40.303

Altech Corporation

TERM STRIP PNL MNT ATSF2.5/3 3 P

2300

HE6WPR/06

HE6WPR/06

Altech Corporation

EUROSTRIP 6P12MM FLAT BASE 40A 3

250

CB4/1

CB4/1

Altech Corporation

CERAMIC EUROBLOCK1P 20A 300V 24-

2250

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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