Name: Phoenix Contact USLKG 50 Protective Conductor Terminal Block - INOSAKI
SKU: Phoenix-0443049
Price: 40.55 USD
Availability: InStock

Technical Overview

DIN rail ground terminal block for 16-50mm² conductors with screw connection, 8 kV surge, and -60°C to 110°C operation.

Key Features

Green-yellow color for clear protective conductor identification.
Screw connection for secure and robust wiring.
Mounts on NS 35/7.5, NS 35/15, and NS 32 DIN rails.
Wide operating temperature range from -60 °C to 110 °C.
ATEX/IECEx certified for hazardous locations (II 2 GD Ex eb IIC Gb).
Low contact resistance due to optimized contact surface ribbing.
High flammability rating according to UL 94 V0.

Technical Specification Matrix

Parameter	Value
Product Type	Ground terminal block
Number of Connections	2
Number of Positions	1
Connection Method	Screw connection
Rated Surge Voltage	8 kV
Maximum Power Dissipation	4.73 W
Rated Cross Section	50 mm²
Conductor Cross Section (solid)	16 mm² - 50 mm²
Conductor Cross Section (flexible)	25 mm² - 50 mm²
Stripping Length	24 mm
Screw Thread	M6
Tightening Torque	6 Nm - 8 Nm
Color	Green-yellow
Flammability Rating (UL 94)	V0
Insulating Material	PA (Polyamide)
Operating Ambient Temperature	-60 °C to 110 °C
Mounting Type	DIN rail (NS 35/7.5, NS 35/15, NS 32)
Overvoltage Category	III
Degree of Pollution	3
Ex Data (ATEX/IECEx) Identification	II 2 GD Ex eb IIC Gb
Physical Weight (kg)	0.16
Dimensions L x W x H (cm)	8.35 x 2 x 7.05

Industrial Applications

1. Grounding in Hazardous Industrial Zones

This protective conductor terminal block is ideal for grounding critical equipment in chemical plants, oil and gas facilities, and mining operations. Its ATEX/IECEx II 2 GD Ex eb IIC Gb certification ensures safe operation in environments with potentially explosive gases or dust, while the wide operating temperature range (-60°C to 110°C) provides reliability under extreme conditions.

Problem Solved

Ensures reliable protective earthing in explosive atmospheres, preventing electrical hazards and complying with stringent safety regulations.

ATEX/IECExHazardous AreaExplosive AtmosphereGroundingProtective Earthing-60°C to 110°C

2. Heavy-Duty Power Distribution Panels

The USLKG 50 is suitable for protective earthing within main power distribution panels for large industrial machinery or building infrastructure. Its capacity for solid conductors up to 50 mm² and flexible conductors up to 50 mm² with an M6 screw thread and 6-8 Nm tightening torque allows for robust and secure connection of high-current protective earth conductors, ensuring system integrity and safety.

Problem Solved

Provides a secure, high-capacity grounding point for large cross-section protective conductors in demanding electrical distribution systems.

50mm² ConductorM6 Screw Connection6-8 Nm TorquePower DistributionHigh Current GroundingDIN Rail Mounting

3. Railway and Transportation Systems Grounding

Given its wide operating temperature range (-60°C to 110°C) and robust screw connection, this terminal block is well-suited for grounding applications in railway signaling, rolling stock, or other transportation infrastructure exposed to significant temperature fluctuations and vibrations. The UL 94 V0 flammability rating adds an essential safety feature for such critical applications.

Problem Solved

Maintains reliable grounding connections in railway and transportation systems subject to extreme temperatures and vibrations, enhancing operational safety.

Railway SystemsTransportation Infrastructure-60°C to 110°CVibration ResistanceUL 94 V0Reliable Connection