General
Housing material	Polyamide
Cable entries	1 x M25
Contact material	silver contacts
Rated voltage	690 V AC
Rated current	16 A
Make/break capacity AC15	Ue 250 V / Ie 6 A (Ex 41) / Ue 500 V / Ie 4 A (Ex 41) / Ue 230 V / Ie 6 A (Ex 23) / Ue 500 V / Ie 4 A (Ex 23)
Marking according to 94/9/EC	Ex II 2 G Ex e d ib m IIC T6 / Ex II 2 D Ex tD A21 IP66 T80°C
EC type-examination certificate	PTB 00 ATEX 3117
Permissible ambient temperature	-20 °C to 40 °C
Protection class	I
Degree of protection	IP66
Application range	Zone 1/21
Switching function	1S +1Ö
Cable diameter	8 - 17 mm

The CEAG Ex-e control switch GHG4118100R0002 is a push-button for use in explosive atmospheres, specifically for Zone 1/21. It serves as an emergency stop switch in industrial plants, where safe and reliable disconnection in an emergency is required. The device is made of polyamide and features a cable entry with M25 thread, designed for cables with a diameter of 8 to 17 mm. The construction ensures high mechanical stability and chemical resistance, making it suitable for use in demanding environments.

Applications
The control switch is intended for use in explosive atmospheres according to the marking Ex II 2 G Ex e d ib m IIC T6 and Ex II 2 D Ex tD A21 IP66 T80°C. It is therefore suitable for gas atmospheres of category IIC and dust atmospheres of category A21. The approval for Zone 1/21 means that it can be used in areas with constant or frequent presence of explosive gases or dusts. The marking according to Directive 94/9/EC and the EC type-examination certificate PTB 00 ATEX 3117 confirm compliance with applicable safety standards.

Functions and Equipment in Detail
The push-button features an SGTE emergency stop push-button with a switching function 1S + 1Oe, meaning it has one normally open and one normally closed contact. The contacts are made of silver material, ensuring high electrical conductivity and good wear resistance. The rated voltage is 690 V AC, and the rated current is 16 A. The switching capacity according to AC15 as per EN 60947-5-1 is defined for various voltage and current values: 250 V and 6 A (Ex 41), 500 V and 4 A (Ex 41), 230 V and 6 A (Ex 23), and 500 V and 4 A (Ex 23). These values define the maximum loads the switch can safely handle.

Technology Explained Simply
The designation Ex-e refers to the protection type enhanced safety, achieved through constructive measures such as avoiding ignition sources and limiting surface temperature. The polyamide housing is resistant to mechanical stress and chemical influences. The protection class IP66 according to EN 60529 means the device is dust-tight and protected against water jets, making it suitable for outdoor use as well. Protection class I indicates that the device is not earthed but operates via a protective conductor system.

Compatibility and Accessories
The control switch is designed for use with Ex-e-compliant cables and installation components. The cable entry with M25 thread enables a secure and tight connection.

Mounting and Installation
Mounting is carried out at an appropriate location within the explosive atmosphere, with ambient temperature ranging between -20 °C and 40 °C. The dimensions of the device are 85 mm (length) × 85 mm (width) × 77.5 mm (height), and the weight is 0.45 kg. Installation is performed via the designated cable entry, with electrical connections to be made in accordance with applicable standards and regulations.

Operational Advantages
The control switch provides reliable and rapid disconnection in an emergency, thereby increasing the safety of the plant and personnel. The robust polyamide construction and high IP66 protection class ensure a long service life even under harsh operating conditions. The silver contacts ensure a stable electrical connection and minimize the risk of contact damage due to oxidation or wear.