Ex p system Series 8621, 7621
Art. No.: 276263

Product Type: 8621/11-1020-1010
Product Description: Ex p complete system For Ex p cabinets up to 1200 l For Zone 1 and 21 For Zone 1 and 21
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc / Zone 21 | 2 D | Db / Zone 22 | 3 D | Dc
Application range (zones): 1, 2, 21, 22
Certificates: ATEX (TUR), China (CQST), IECEx (TUR), India (PESO), Korea (KTL)
Auxiliary power rated operating voltage: DC 24 V (+20% to -15%)
Ex p controller enable contact: 1 potential-free contact
Purging air nozzle: 3.0 mm
Ex p pressure reducer: 1 x size 2, Die-cast zinc
Purge time range pressure regulation: Automatic control
Country of origin: DE
More information

Technical data

General

MY R. STAHL 8621A
Product variant For Zone 1 and 21; Ex p complete system For Ex p cabinets up to 1200 l
Product Type 8621/11-1020-1010
Product Description Ex p complete system For Ex p cabinets up to 1200 l For Zone 1 and 21 For Zone 1 and 21
Highlights All-round Ex p system for Ex p cabinets from 10 to 4000 litres
Zones 1, 2, 21 and 22
Mounted on the roof or lateral enclosure wall
Ex p controller in DC 24 V or AC 90–253 V
Compact construction design, simple mounting
Ex p parameters are adjusted using the display, regardless of language
Functional Description The Ex p system 8621 is ideal for safe control and monitoring of Ex p control cabinets in a range of sizes. The highly accurate pressure sensors, which are redundantly present for the Ex Zone 1 version, enable operation near the pressure switch-off threshold. This reduces the required leakage quantities to a minimum and guarantees very cost-effective continuous operation.The concept with a modular system component structure enables purge times and purge pressures to be adapted to meet current requirements. To do so, only the number of purge gas outlets (Ex p pressure monitors) needs to be changed in order to drastically reduce the purge time or purge pressure, if the same Ex p controller is used.To guarantee that adverse environmental conditions can be withstood, our tried-and-tested glass fibre reinforced polyester has been selected as the enclosure material. Additionally, optional suitable protective collars are available as protection against heavy rainfall.A device as simple as it is effective (Ex p vortex air cooler) is available for cooling Ex p cabinets. In this respect, too, the cooling power is regulated solely by the number of structurally identical devices that are installed.

Explosion Protection

Electrical Data

Auxiliary power

Device Specific Data

Ambient Conditions

Mechanical Data

Mounting / Installation

Components

Commercial data

Downloads

Description Document Type Language
Ex p system - 8621 & 7621 - de-DE Product Overview
pdf
Ex p system - 8621 & 7621 - en-GB Product Overview
pdf
Ex p system - 8621 & 7621 - fr-FR Product Overview
pdf
Ex p system - 8621 & 7621 - es-ES Product Overview
pdf
Ex p complete system For Ex p cabinets up to 1200 l DC 24 V, automatic control For Zone 1 and 21 - 8 ... Single Data Sheet
pdf
Ex p complete system For Ex p cabinets up to 1200 l DC 24 V, automatic control For Zone 1 and 21 - 8 ... Single Data Sheet
pdf
Ex p complete system For Ex p cabinets up to 1200 l DC 24 V, automatic control For Zone 1 and 21 - 8 ... Single Data Sheet
pdf
Ex p complete system For Ex p cabinets up to 1200 l DC 24 V, automatic control For Zone 1 and 21 - 8 ... Single Data Sheet
pdf

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