Load and Motor Switches, Load-Break Switches
Series 8544
- Innovative switch concept
- Modular system
- State-of-the-art contact arrangement
- Easy and clear connection technology
- Wiring channel for auxiliary contacts
- Retrofittable:
- Alligator clip
- Auxiliary contacts
- Ex i separation body
- N terminal
- PE terminal
- Adapter plate for cable connection
- Motor switching capacity AC-3, DC-1 and DC-23 acc. to IEC/EN 60947-3, IEC/EN 60947-4
- Isolating characteristics according to IEC/EN 60947-4
- Degree of protection IP2x
- Any installation position
| Introduction | Data sheets | Operating Instructions | Certificates |
The load and motor switch of type 8544/1 is an explosion-protected electrical device in a flameproof enclosure. It is used for the separation or activation of electrical circuits in hazardous areas of zone 1, zone 2 or in the safe area.
The load and motor switch 8544/1 is available in versions 8544/1-3. (3 poles) and 8544/1-4. (3 poles + N).
The switches are actuated by means of an actuator insert which is connected to the switch by means of a selector shaft.
Up to two certified contact elements of the type 8080/1 can be mounted at the load and motor switch 8544/1.
The switching function of the contact elements is defined by the contact version and their position in the load and motor switch (left-hand: delayed (ON), advanced (OFF); right-hand: synchronising).
| ATEX / IECEx | ||||||
|---|---|---|---|---|---|---|
| Zone | 0 | 1 | 2 | 20 | 21 | 22 |
| For use in | x | x | ||||
Data sheets
Operating Instructions
| Document | Size | Language |
|---|---|---|
| Operation Instructions | 2,1 MB | English |
| Operation Instructions | 3,57 MB | English/German |
| Operation Instructions | 2,11 MB | German |
| Operation Instructions | 2,15 MB | French |
Certificates
| Cer. Body | Type | Certificate No. | Country/ Region | Category | |
|---|---|---|---|---|---|
| FM | 8544/.. | 3037662 | USA | Class I, Zone 1 / Class I, Div. 2 |
 |
| FM | 8544/.. | 3037662C | Canada | Class I, Zone 1 / Class I, Div. 2 |
|
| Gospromnadzor | 8544/.. | No. 05-821-2010 | Belarus |
 |
|
| IZP | 8544/1. | 1202/2010 | Serbia | G |
 |
| PTB | 8544/.. | IECEx PTB 09.0011 U | IECEx | G & M |
|
| PTB | 8544/.. | PTB 08 ATEX 1060 U | Europe | ATEX: II 2 G & I M 2 |
 |
| PTB | 8544/.. | PTB 08 ATEX 1060 U | Europe | ATEX: II 2 G & I M 2 |
|