General
Conductor cross section	0,08–2,5 mm²
Strip length	8–9 mm
Technology	CAGE CLAMP®
Colour	Green-yellow
Connection type	through-feed terminal block
Label holder	Sideways
Actuation	Actuation tool

The WAGO 280-607 is a 2-conductor protective earth terminal block from the series 280, specifically designed for the safe and reliable connection of protective earth conductors in industrial and electrical installations. The product features CAGE CLAMP® technology, enabling quick and maintenance-free connections without requiring prior treatment of the conductor. The terminal block is rated for conductor cross-sections from 0.08 mm² to 2.5 mm², making it suitable for a wide range of applications in electrical installation. The green-yellow color identifies the terminal block as a protective earth terminal block in accordance with international standards. The side labeling slots allow for clear identification of connections, facilitating maintenance and fault diagnosis.

Applications

The protective earth terminal block 280-607 is used in electrical switchgear where secure earthing is required. It is particularly suitable for installations in industry, machine building, building electrotechnics, and automation technology. The terminal block is mounted on support rails with dimensions 35 x 15 mm and 35 x 7.5 mm, enabling universal use in standard switchboards. The integrated connection to the contact foot ensures that the electrical and mechanical connection between the conductor and the support rail is established directly, guaranteeing reliable earthing.

Functions and Equipment in Detail

The terminal block operates using CAGE CLAMP® technology, which employs a cage spring mechanism to securely hold the conductor. This mechanism allows connecting conductors without prior crimping or application of wire end ferrules, reducing installation time and minimizing error potential. The required stripping length is 8 to 9 mm, enabling standardized and precise processing. The terminal block is designed as a through-type series terminal block, meaning it is mounted in a row and allows connection of multiple conductors. The side labeling slots serve for unambiguous identification of connections.

Technology Explained Simply

CAGE CLAMP® technology uses a cage spring that securely holds the conductor through an elastic clamping action. This technology is maintenance-free and enables a stable connection, even under vibration or temperature fluctuations. The integrated connection to the contact foot ensures that the electrical connection is made directly to the support rail, enabling direct earthing. The terminal block is activated using an actuation tool, which opens the spring, allowing the conductor to be inserted. After inserting the conductor, the tool is removed, and the spring closes automatically, securely holding the conductor.

Compatibility and Accessories

The terminal block is designed for support rails with dimensions 35 x 15 mm and 35 x 7.5 mm. Suitable accessories include, for example, L-type locking test modules (e.g. 249-142), test adapters (e.g. 280-404), insulation stops (280-472), box bridges (780-453), wire end ferrules (216-301), multilabeling systems (e.g. 793-5501), and various support rails (e.g. 210-115, 210-508, 210-112, 210-196). These components can be used to extend functionality and label connections.

Installation and Mounting

Mounting is performed on a support rail with the specified dimensions. The terminal block is activated using an actuation tool, opening the spring. The conductor, stripped to a length of 8 to 9 mm, is inserted into the terminal block. After removing the tool, the spring closes automatically and securely holds the conductor. The side labeling slots can be fitted with labeling plates to clearly identify connections.

Operational Advantages

The terminal block provides a reliable and maintenance-free connection that functions without additional conductor pre-treatment. CAGE CLAMP® technology reduces installation time and minimizes error sources. The direct connection to the contact foot ensures stable earthing. The side labeling slots facilitate maintenance and identification of connections. Compatibility with various support rails and accessories increases installation flexibility.