WAGO 280-577 4-Conductor Sensor Supply Terminal Block

Technical Overview

4-conductor sensor supply terminal block with ground, 400V/20A, CAGE CLAMP® connection, DIN rail mountable.

Key Features

4-conductor design for efficient sensor wiring applications.
Integrated ground contact for enhanced safety and signal integrity.
CAGE CLAMP® connection provides quick, reliable, and vibration-resistant wiring.
DIN-rail mountable (DIN-35) for easy and organized installation in control cabinets.
Accommodates a wide range of conductor sizes from 0.08 to 2.5 mm² (28-12 AWG).
Features colored conductor entries for clear wiring organization and identification.
Constructed from Polyamide (PA66) insulation material with a UL94 V0 flammability rating for safety.

Technical Specification Matrix

Parameter	Value
Nominal Voltage	400 V
Nominal Current	20 A
Connection Technology	CAGE CLAMP®
Number of Conductors	4
Number of Poles/Pins	4
Number of Levels	3
Mounting Type	DIN-35 rail
Wire Size (Solid/Fine-stranded)	0.08 - 2.5 mm² / 28 - 12 AWG
Strip Length	8 - 9 mm / 0.31 - 0.35 inch
Color	Gray
Insulation Material	Polyamide (PA66)
Flammability Class (UL94)	V0
Physical Weight (kg)	0.02
Dimensions L x W x H (cm)	6.35 x 0.6 x 9.05

Industrial Applications

1. Industrial Automation Control Panels

This terminal block is ideal for use in industrial control panels to efficiently connect and distribute power to multiple 3-wire or 4-wire proximity sensors, photoelectric sensors, or other field devices requiring a common power supply and dedicated ground.

Problem Solved

Provides a compact, organized, and reliable connection point for numerous sensors, simplifying wiring and troubleshooting in complex automation systems. The 400V nominal voltage and 20A nominal current provide ample capacity, while the CAGE CLAMP® ensures vibration-proof connections crucial in dynamic industrial environments.

Sensor distributionindustrial controlDIN rail mountingCAGE CLAMP24VDC sensorsfield wiringvibration-proof

2. Machine Building and OEM Equipment

Integrated into the electrical cabinets of machinery, this terminal block facilitates the tidy and secure termination of sensor leads from various machine components (e.g., limit switches, temperature sensors) to the PLC or control system.

Problem Solved

Ensures robust electrical connections for critical machine sensors, preventing intermittent faults due to loose wiring and reducing assembly time thanks to the quick CAGE CLAMP® technology. Its compact 6mm width optimizes space in machine cabinets, and the 400V/20A rating accommodates diverse industrial sensor requirements.

Machine controlOEM integrationsensor wiringvibration resistancequick connectionindustrial machinerycompact design

3. Building Management Systems (BMS) for HVAC/Security

Employed in centralized BMS panels, this terminal block can manage the power and signal connections for distributed environmental sensors (temperature, humidity), occupancy sensors, or security sensors within large building infrastructures.

Problem Solved

Offers a standardized and robust method for connecting numerous low-voltage building sensors, ensuring system reliability and simplifying maintenance. The integrated ground contact is essential for signal integrity and safety in large-scale installations, while the CAGE CLAMP® offers tool-actuated, reliable termination for consistent performance.

BMSHVAC controlsecurity systemssensor networkingcentralized controllow-voltage distributionsignal integrity