Technical Overview

Ground terminal block for DIN rail mounting, featuring screw connection, 0.2-4mm² wire range, and -60°C to +110°C operating temp. UL 94 V-0.

Key Features

Green-yellow color for clear identification as a protective conductor.
Designed for mounting on DIN rails (NS 32, NS 35/7.5, NS 35/15).
Compact design with a width of 5.2 mm for space-saving installations.
Suitable for flexible and solid cable cross-sections from 0.2 mm² to 4 mm² (24-12 AWG).
High operating temperature range from -60 °C to +110 °C.
Rated surge voltage of 8 kV for robust electrical protection.
UL 94 V-0 flammability rating ensures material safety.
Guaranteed finger protection.

Technical Specification Matrix

Parameter	Value
Product Type	Ground terminal block
Connection Method	Screw connection
Mounting Type	DIN Rail (NS 32, NS 35/7.5, NS 35/15)
Wire Cross-section (Min)	0.2 mm²
Wire Cross-section (Max)	4 mm²
Wire Gauge (Min)	24 AWG
Wire Gauge (Max)	12 AWG
Rated Surge Voltage	8 kV
Maximum Power Dissipation (Nominal)	0.77 W
Operating Temperature (Min)	-60 °C
Operating Temperature (Max)	+110 °C
Flammability Rating	UL 94 V-0
Color	Green-yellow
Number of Connections per Level	2
Number of Positions	1
Overvoltage Category	III
Degree of Pollution	3
Grounding Foot	Yes
Screw Thread	M3
Terminal Block Mounting Torque	0.5 Nm … 0.6 Nm
Shock Protection	Guaranteed finger protection
Fire Protection for Rail Vehicles	DIN EN 45545-2 R22/R23/R24/R26, HL 1 – HL 3
Oscillation and Shock Test Specification	DIN EN 50155 (VDE 0115-200):2018-05
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	4.25 x 0.52 x 4.25

Industrial Applications

1. Industrial Control Panels (Grounding Systems)

This terminal block is ideal for establishing robust and clearly identifiable protective earth (PE) connections within industrial control panels. Its green-yellow coloring ensures compliance with international standards for grounding, while the screw connection provides a durable and vibration-resistant termination for wires ranging from 0.2 mm² to 4 mm².

Problem Solved

Ensures safe and compliant grounding for industrial equipment, mitigating electrical shock hazards and maintaining system integrity in environments with potential vibrations and wide temperature fluctuations (-60°C to +110°C) where secure electrical connections are critical.

GroundingPE connectionDIN railscrew connection0.2-4mm² wire-60 to +110°Cindustrial safetyvibration resistance

2. Railway Applications (Rolling Stock and Trackside Equipment)

Given its compliance with fire protection for rail vehicles (DIN EN 45545-2 R22/R23/R24/R26, HL 1-HL 3) and resistance to oscillation and shock (DIN EN 50155), this protective conductor terminal block is perfectly suited for grounding circuits in railway rolling stock or trackside control systems. Its wide operating temperature range and robust screw connection ensure reliability in harsh railway environments.

Problem Solved

Provides a highly reliable and certified grounding point in high-vibration, wide temperature range, and fire-critical railway applications, ensuring operational safety and system continuity even under demanding conditions.

RailwayEN 50155EN 45545-2shock resistancevibration resistancegroundingwide temperature rangeprotective conductor

3. HVAC/R Systems in Harsh Environments

For large-scale HVAC/R (Heating, Ventilation, Air Conditioning, and Refrigeration) systems installed in industrial settings or outdoor cabinets where extreme temperatures (-60°C to +110°C) are encountered, this terminal block provides a secure and reliable grounding solution. Its compact DIN rail design facilitates integration into tight control enclosures, and the robust screw terminals withstand thermal cycling.

Problem Solved

Addresses the challenge of maintaining secure and safe grounding connections in HVAC/R control systems exposed to significant temperature variations and potential condensation without compromising electrical safety or performance.

HVAC/Rextreme temperature-60 to +110°CgroundingDIN railcontrol enclosuresthermal cyclingscrew connection

Phoenix Contact USLKG 3 N Protective Conductor Terminal Block

Phoenix Contact USLKG 3 N Protective Conductor Terminal Block

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. Industrial Control Panels (Grounding Systems)

2. Railway Applications (Rolling Stock and Trackside Equipment)

3. HVAC/R Systems in Harsh Environments