WAGO 2007-8821 Disconnect Test Terminal Block

Technical Overview

2-conductor disconnect/test terminal block with Push-in CAGE CLAMP® for CT circuits, 30A/500V.

Key Features

DIN 35 rail-mounted terminal block.
Push-in CAGE CLAMP® connection technology for fast and vibration-proof wiring.
Designed for current transformer circuits with disconnect/test function.
Includes receptacle for an adjacent jumper with a switch lever.
Equipped with touch-proof test sockets for 4 mm Ø test plugs.
Accommodates solid and fine-stranded conductors from 0.5 to 10 mm² (20 to 8 AWG).
Rated for 30 A current and 500 V (IEC) / 300 V (UL/CSA) voltage.
Flammability rating of UL94 V-0.
Front-entry wiring for convenient installation.
Gray color housing made from Polyamide (PA) 66.

Technical Specification Matrix

Parameter	Value
Current Rating	30 A (IEC, UL, CSA)
Voltage Rating (IEC)	500 V
Voltage Rating (UL/CSA)	300 V
Rated Impulse Voltage (III/3)	6 kV
Number of Positions	2
Number of Levels	1
Mounting Type	DIN Rail 35 x 15 and 35 x 7.5
Wire Connection Method	Push-in CAGE CLAMP®
Connectable Conductor Materials	Copper
Nominal Cross-section	6 mm² / 10 AWG
Solid Conductor Range	0.5 … 10 mm² / 20 … 8 AWG
Fine-stranded Conductor Range	0.5 … 10 mm² / 20 … 8 AWG
Strip Length	13 … 15 mm / 0.51 … 0.59 inches
Wiring Direction	Front-entry
Color	Gray
Flammability Rating	UL94 V-0
Operating Temperature	-60 … +105 °C
Physical Weight (kg)	0.03
Dimensions L x W x H (cm)	6.53 x 0.8 x 9.96

Industrial Applications

1. Current Transformer (CT) Circuit Testing and Maintenance

This terminal block is specifically designed for current transformer (CT) circuits, allowing for safe and convenient disconnection and testing without interrupting the primary circuit. The integrated switch lever enables easy isolation, while the 4mm test sockets provide touch-proof access for measuring instruments.

Problem Solved

Eliminates the need for cumbersome wiring changes or complex bypass arrangements during CT testing, enhancing safety and reducing downtime in critical electrical systems.

Current transformercircuit isolationtest points4mm test plugs30A500VPush-in CAGE CLAMP

2. Industrial Control Panel Wiring with High Density and Reliability

With its compact 8mm width, Push-in CAGE CLAMP® technology, and DIN-rail mounting, this terminal block is ideal for high-density wiring in industrial control cabinets. It ensures reliable, vibration-proof connections for power distribution and signal lines requiring quick disconnect capabilities.

Problem Solved

Provides efficient space utilization and robust, maintenance-free wiring connections in environments susceptible to vibration, ensuring operational continuity and reducing wiring errors.

DIN rail mountPush-in CAGE CLAMP0.5-10mm² wire30A500Vcompact designvibration-proof

3. Power Distribution and Measurement in Building Automation Systems

The terminal block's 30A current rating and 500V voltage rating make it suitable for power distribution within building automation systems, where local disconnection and current measurement might be required for troubleshooting or energy monitoring. The disconnect feature allows for safe isolation of individual loads or circuits.

Problem Solved

Facilitates safe and easy electrical isolation and current measurement for individual branches or equipment in large electrical installations, improving diagnostics and safety during maintenance.

Power distribution30A500Vdisconnect functiontest socketsbuilding automationelectrical isolation