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Main applications
These terminal blocks have been developed to allow to add ground electrical connection on KA series explosion-proof thermostats with wired output in EX “e” increased security boxes. They allow quick mounting directly on the body of the thermostat, without the need for a DIN rail for fixing, and their footprint is reduced. They are approved for this application. Their assembly can also be done directly by screwing onto a mounting board.
They are intended for the connection of copper conductors inside enclosures.

Technical features

Dimensions:
- 4mm²: 40 × 41 × 6.8mm (40 × 41 × 8mm with partition side flange added)
- 6mm²: 46 × 41 × 8.4mm (46 × 41 × 9.6mm with partition side flange added)

Material: Aluminum with green epoxy painting. Yellow green combination used for ground terminals is achieved by using a yellow partition in PA.

Colors available: Green for aluminum body, yellow for partition in PA

Rated section: 4mm² or 6mm² (EN 60079-7) Solid core, stranded, finely stranded, or with wire-end ferrules

Minimum cross section: 0.5mm² (EN 60079-7) for solid core, stranded, finely stranded, or with wire-end ferrules

Ambient temperature limits:
Under normal operating conditions the temperature rise of the terminal blocks is none. Due to the above mentioned the terminal blocks may be used on or in apparatus of temperature classes T6 to T1

Installation:
- The yellow partition in PA is mandatory when this connection block is assembled beside a neutral or a live connection block.
- Designed to be mounted directly on the body of KA thermostats using two M3 screws, and a center M4 screw
connection the terminal to the thermostat grounded body, without requiring a 35mm DIN rail, the mounting is identical for the 4mm² and 6mm²
- Can be mounted directly on a board by drilling a 4mm hole for M4 screw, with a square nut in the aluminum base
- ROHS and Reach compliants

Accessories :
- Shunts allowing the electrical connection of terminal blocks of the same section side by side without using wire connection terminals.
- 3×7mm rail allowing the terminal blocks to be joined together when a long assembly length is mounted on the body of the thermostat.