Terminal Blocks - Barrier Blocks

Image Part Number Description / PDF Quantity Rfq
HE42SBU/03

HE42SBU/03

Altech Corporation

EUROSTRIP SOCKET3P10MMPS STANDOF

2300

HE42SST/06

HE42SST/06

Altech Corporation

EUROSTRIPPLUG 6P 10MMPS STANDOFF

250

HE4HNWPR/05

HE4HNWPR/05

Altech Corporation

EUROSTRIP 5P10MM STANDOFF 30A 60

400

MT-2111

MT-2111

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

0

HE10WPR/11

HE10WPR/11

Altech Corporation

EUROSTRIP11P15MM FLATBASE 50A 30

0

HE6WPR/05

HE6WPR/05

Altech Corporation

EUROSTRIP 5P12MM FLAT BASE 40A 3

0

40.402

40.402

Altech Corporation

TERM STRIP PNL MNT ATS6/2 2 P 12

5002300

40.203

40.203

Altech Corporation

TERM STRIP PNL MNT ATS2.5/3 3 P

1300

HE42SST/02

HE42SST/02

Altech Corporation

EUROSTRIPPLUG 2P 10MMPS STANDOFF

0

40.308

40.308

Altech Corporation

TERM STRIP PNL MNT ATSF2.5/8 8 P

250

40.305

40.305

Altech Corporation

TERM STRIP PNL MNT ATSF2.5/5 5 P

700

MT-2104

MT-2104

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

0

40.103

40.103

Altech Corporation

TERM STRIP PNL MNT ATSF1.5/3 3 P

900

HE16WPR/05

HE16WPR/05

Altech Corporation

EUROSTRIP 5P15MM FLATBASE 63A 30

450

HE16HWPR/11

HE16HWPR/11

Altech Corporation

EUROSTRIP11P15MM STANDOFF 63A 60

0

40.007

40.007

Altech Corporation

TERM STRIP PNL MNT ATS1.5/7 7 P

0

HE42BU/09

HE42BU/09

Altech Corporation

EUROSTRIP SOCKET 9P10MMPS FLAT B

0

HE42SBU/06

HE42SBU/06

Altech Corporation

EUROSTRIP SOCKET 6P10MMPS STANDO

350

MT-2122

MT-2122

Altech Corporation

BARRIER STRIP 1000MMPS 20A 300V

0

MT-2115

MT-2115

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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