Explosion-Proof Control Thermostats
Type ERT-10
Hazardous area thermostat type ERT-10 replaces former type EJB D8525 and is suitable for direct control of Sinus Jevi explosion proof space heaters, e.g. finned tube heater type ERB. The ERT-10 surface mounted thermostat stands for reliable temperature control, even under extreme conditions. A convenient view window enables you to see the adjustable set point of the thermostat without removing the lid. The (outside) construction and enclosure of the thermostat comply with increased safety (Ex ‘e’) requirements and enable usage of ‘simple’ (Ex ‘e’) cable glands. Two cable glands are available for both incoming and outgoing cable. Maximum 16A / 230 VAC load can be switched by the single pole (double throw) potential free thermostat contact. The adjustable temperature range is -20°C up to +40°C and the admissible ambient temperature is -40°C up to +40°C. The (outside) IP65 enclosure is made of reinforced Polyester, making it suitable for placement in harsh environments. Its Ex approvals apply to explosive gas atmospheres (zone 1 and 2) or dust atmospheres (zone 21 and 22).
type EJB D8640
The explosion-proof room thermostat is suitable for gas group IIC with EN/IEC test certificate.
This explosion-proof room thermostat consists of a flame proof steel or stainless steel casing.
Cable gland M20x1.5 HAWKE type 501/453/O.
The sensor is located in the basket, in which a cappillary thermostat is built, adjustable between 0 – 40°C.
Technical Specifications
| ERT-10 | |
| Type | ERT-10 TW |
| Including | view window |
| Material | Polyester casing, black |
| Setting range | -20… +40°C |
| Max. sensortemp. | 40°C |
| Dimensions | 106 x 200 x 90 mm |
| Switching capacity | 1-2: AC 16(2,5)A 230V 1-4: AC 6,3(2,5)A 230V |
| Protection class | IP65 |
| Article number | A300 106 000 |
Classification:
ATEX
Ex II 2G Ex de IIC T6 Gb
Ex II 2 D Ex tb IIIC T130°C Db
Technical Specifications
| EJB D8640, 3phase | |
| Type | D8640 3 phase |
| Supplied with | 2 brass cable glands |
| Material | Steel casing |
| Setting range | 0… +40°C |
| Ambient temperature | -30°C – +50°C |
| Hysteresis | 2°C |
| Switching power | Max. 3×400 Volts AC to 3x16A |
| Protection class | IP66 |
| Article number | A301 204 030 |
Certificate:
ATEX – Ex II 2GD
Ex d IIC T6 Gb – Ex tb IIIC T110°C Db
EN/IEC 60079-1 EN/IEC 60079-31
| EJB D8640, 3phase (Stainless Steel) | |
| Type | Capillair D8640 3 fasen (RVS) |
| Supplied with | 2 nickel plated cable glands |
| Material | Stainless steel casing |
| Setting range | 0… +40°C |
| Ambient temperature | -30°C – +50°C |
| Hysteresis | 2°C |
| Switching power | Max. 3×400 Volts AC to 3x16A |
| Protection class | IP66 |
| Article number | A301 204 030A |
Certificate:
ATEX – Ex II 2GD
Ex d IIC T6 Gb – Ex tb IIIC T110°C Db
EN/IEC 60079-1 EN/IEC 60079-31
