Product Overview
Ground terminal blocks (PE blocks) establish reliable, low-resistance protective earth connections in industrial electrical enclosures. Mounted directly onto standard DIN rails, these blocks mechanically and electrically bond equipment frames and control circuit protective conductors to the central panel earth. Built with electrolytic copper alloy current bars and UL94 V-0 flame-retardant polyamide housings, they are engineered to meet IEC 60947-7-2 short-circuit and mechanical performance requirements while maintaining stability under continuous operational vibration.
-
XCGT-25 Ground Terminal BlockThe XCGT-25 is a DIN rail-mounted protective conductor terminal block for connecting PE conductors to a metal mounting rail in industrial control panels, electrical cabinets, and distribution...view more
-
XCGT-16 Ground Terminal BlockThe XCGT-16 is a DIN-rail mounted protective earth (PE) terminal block for connecting copper conductors in industrial control cabinets, electrical panels, and equipment wiring systems.view more
The... -
XCGT-10 Ground Terminal BlockThe XCGT-10 is a 10 mm² protective earth (PE) ground terminal block for industrial control panels, switchgear, machinery control cabinets, and other electrical enclosures requiring DIN-rail...view more
-
XCGT-6 Ground Terminal BlockThe XCGT-6 is a 6 mm2 screw-clamp protective earth (PE) terminal block for electrical connections in industrial control panels, switchboards, machinery enclosures, and other DIN-rail mounted...view more
-
XCGT-4 Ground Terminal BlockThe XCGT-4 is a 4 mm² DIN-rail mount ground terminal block for protective Earth (PE) connections in industrial control panels, electrical enclosures, and power distribution systems. It provides a...view more
-
XCGT-2.5 Ground Terminal BlockThe XCGT-2.5 is a protective earth (PE) DIN rail terminal block for connecting protective conductors and establishing electrical continuity between the conductor and the DIN rail in industrial...view more
Key Features
Low Contact Resistance
Optimized tin-plated electrolytic copper current bars ensure minimal voltage drop and secure fault current dissipation.
01
Vibration-Proof Connection
Engineered clamp designs maintain constant contact pressure, preventing conductor loosening in high-vibration machinery.
02
Standard DIN Rail Mounting
Snaps securely onto standard 35 mm DIN rails (NS 35/7.5 and NS 35/15), utilizing the rail as a shared ground bus bar.
03
Instant Visual Identification
Standardized green and yellow housing colors comply with international electrical standards for protective earth identification.
04
Modular Bridging
Accommodates plug-in jumpers for quick potential distribution and multi-tier grounding layouts.
05
Product Range & Selection
(Note: Rated currents are tested in accordance with standard IEC 60947-7-2.)
|
Model Series |
Connection Type |
Rated Cross-Section (mm2) |
Rated Current |
Mounting Rail |
Typical Use Case |
|
GTB-2.5 |
Screw / Spring |
0.2 - 2.5 |
24 A |
NS 35/7.5 |
Standard control circuits |
|
GTB-4 |
Screw / Spring |
0.2 - 4.0 |
32 A |
NS 35/7.5 |
General machinery panels |
|
GTB-10 |
Screw |
0.5 - 10.0 |
57 A |
NS 35/15 |
Medium power distribution |
|
GTB-35 |
Heavy-Duty Screw |
6.0 - 35.0 |
125 A |
NS 35/15 |
Main incoming earth lines |
Technical Specifications
|
Housing Material |
Polyamide (PA66), Halogen-free, UL94 V-0 flammability rating |
|
Metal Parts |
High-conductivity electrolytic copper, corrosion-resistant tin plating |
|
Clamping Yoke |
Hardened spring steel, zinc-chromate plated |
|
Rated Standards |
IEC 60947-7-2, UL 1059, CSA C22.2 |
|
Operating Temperature |
-40°C to +105°C |
|
Stripping Length |
8 mm - 18 mm (by cross-section) |
Applications
Industrial automation control panels and PLC cabinets
Power distribution boards and switchgear assemblies
Renewable energy inverter and battery storage systems
HVAC and building automation control boxes
Railway signaling and transportation infrastructure

Manufacturing & Quality Control
Automated Stamping & Molding
High-precision progressive dies and automated injection molding lines ensure consistent dimensional tolerances for secure rail locking.
In-House Laboratory Testing
Every production batch undergoes torque endurance testing, salt spray corrosion testing (ASTM B117), temperature rise verification, and millivolt drop analysis per IEC standards.
Traceability & Compliance
Laser-etched batch numbers on terminal housings link directly to mill test certificates. Produced in ISO 9001 certified facilities with CE, RoHS, and UL compliance marks.
Customization & Supply Chain Support

Custom Marking
Laser-engraved terminal numbers, custom logos, or specific project tagging.

Pre-Assembled DIN Rails
Delivery of pre-populated assemblies with customized terminal configurations to reduce panel building labor time.

Logistics & Inventory
Maintained in buffer stock for immediate shipment, supporting flexible carton quantities (Standard packing: 50pcs/100pcs per box) and urgent project deadlines.
FAQ

RFQ / Inquiry CTA
Need bulk pricing, technical drawings (STEP files), or custom terminal block configurations for your upcoming project?
Request a Quote / Send BOM: [Submit Inquiry via Form]
Download 2D/3D CAD Drawings: [Access STEP Files]
Request Free Samples: [Order Sample Kit]
Direct Engineering Contact: Jay-xc@nb-xucheng.com
As one of the most professional ground terminal block manufacturers in China, we're featured by quality products and good service. Please rest assured to buy bulk customized ground terminal block made in China here from our factory. Contact us for pricelist and free sample.
