Terminal Blocks - Barrier Blocks

Image Part Number Description / PDF Quantity Rfq
40.005

40.005

Altech Corporation

CONN TERM STRIP 5 POLES 8MM

392000

HE6HWPR/10

HE6HWPR/10

Altech Corporation

CONN TERM STRIP 10 POLES 12MM

1683500

HE42ST/08

HE42ST/08

Altech Corporation

TERM BLOCK PLUG 8 POLES 10MM

15664400

HE6HWPR/12

HE6HWPR/12

Altech Corporation

CONN TERM STRIP 12 POLES 12MM

2517025

HE42BU/04

HE42BU/04

Altech Corporation

EUROSTRIP SOCKET 4P10MMPS FLAT B

4300

HE10HWPR/02

HE10HWPR/02

Altech Corporation

EUROSTRIP 2P 15MM 50A 600V 18-8A

5801720

HE1WPR/03

HE1WPR/03

Altech Corporation

CONN TERM STRIP 3 POLES 8MM

12410100

HE4WPR/02

HE4WPR/02

Altech Corporation

EUROSTRIP 2P10MM FLT 30A 300V 24

16234800

HE10HWPR/06

HE10HWPR/06

Altech Corporation

EUROSTRIP 6P 15MM 50A 600V 18-8A

313620

HE10WPR/12

HE10WPR/12

Altech Corporation

CONN TERM STRIP 12 POLES 15MM

220180

HE4WPR/04

HE4WPR/04

Altech Corporation

EUROSTRIP 4P10MM FLT 30A 300V 24

996600

40.012

40.012

Altech Corporation

CONN TERM STRIP 12 POLES 8MM

481450

40.003

40.003

Altech Corporation

CONN TERM STRIP 3 POLES 8MM

12712900

40.010

40.010

Altech Corporation

CONN TERM STRIP 10 POLES 8MM

1081050

HE16HWPR/12

HE16HWPR/12

Altech Corporation

CONN TERM STRIP 12 POLES 15MM

50670

HE16HWPR/06

HE16HWPR/06

Altech Corporation

CONN TERM STRIP 6 POLES 15MM

461580

HE10WPR/03

HE10WPR/03

Altech Corporation

CONN TERM STRIP 3 POLES 15MM

1944400

HE42SBU/09

HE42SBU/09

Altech Corporation

EUROSTRIP SOCKET 9P10MMPS STANDO

0

HE42ST/07

HE42ST/07

Altech Corporation

EUROSTRIPPLUG 7P 10MMPS FLAT BAS

0

HE42SBU/08

HE42SBU/08

Altech Corporation

EUROSTRIP SOCKET 8P10MMPS STANDO

150

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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