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Load & Motor Switches, Load-Break Switches Series 8544
Brand: R. STAHL AG.png)
R. STAHL's 8544 series load and motor switches are used as Ex d load disconnect switches: They isolate and switch electric circuits in hazardous areas. They can also be used in non-hazardous areas.
The innovative switch concept boasts simple, clear connections and an advanced contact system. A variety of terminals and contacts can be retrofitted.
Features- Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4
- retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs
- auxiliary contacts with lagging, leading or synchronized switching
1 - 4 of 4 Part Numbers
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165675
Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4
retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs
auxiliary contacts with lagging, leading or synchronised switching
Ambient Conditions
- Ambient temperature - -30 °C ... +80 °C
- Ambient temperature max. - +80 °C
- Ambient temperature min. - -30 °C
Auxiliary power
- Power dissipation max. - 3.80 W
Electrical Data
- Rated operational current - 80.000 A
- Rated operational voltage AC - 690.00 V
- Short-circuit protection max. - 160 A
- Short-circuit strength - 20.00 kA
- Tripping characteristic - gG
Explosion Protection
- Application range (zones) - 1, 2, 21, 22
- ATEX gas certificate - PTB 08 ATEX 1060 U
- Certificates - ATEX (PTB), Brazil (ULB), Canada (FM), IECEx (PTB), USA (FM)
- Explosion protection 2 - Class I, Zone 1 AEx db eb IIC
- Explosion protection 3 - Class I, Division 2
- Gas explosion protection ATEX - II 2 G Ex db eb IIC T6
- Gas explosion protection IECEx - Ex db eb IIC T6
- IECEX gas certificate - IECEx PTB 09.0011 U
- NEC 500 zones - Class I, Zone 1
- NEC 505 gas Ex-type - AEx
- NEC 505 zones - Class I, Division 2
General
- Functional Description - R. STAHL's 8544 series load and motor switches are used as Ex d load disconnect switches: They isolate and switch electric circuits in hazardous areas. They can also be used in non-hazardous areas. The innovative switch concept boasts simple, clear connections and an advanced contact system. A variety of terminals and contacts can be retrofitted.
- Highlights - Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4 retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs auxiliary contacts with lagging, leading or synchronised switching
- Product Description - Load and motor switch Load disconnect switch
- Product Type - 8544/1-31
- Title Product Variant Technical Data - 8544/1-31 Load and motor switch
- WebCode - 8544A
Mechanical Data
- Connection cross-section - 50.0 mm²
- Connection cross-section finely stranded max. - 50.00 mm²
- Connection cross-section min. - 6.00 mm²
- Connection cross-section solid max. - 10.00 mm²
- Connection terminals of auxiliary contact finely stranded max. - 2.50 mm²
- Connection terminals of auxiliary contact min. - 1.50 mm²
- Connection terminals of auxiliary contact solid max. - 2.50 mm²
- Connection terminals stranded max. - 50.00 mm²
- Contact material - silver stannic oxide
- Degree of protection (IP) - IP20
- Detailed number of poles - 3 P
- Enclosure material - Polyamide / Epoxy resin
- Service life, min. - 10,000 operating cycles
- Weight - 2.200 kg
Mounting / Installation
- Connection type - Screw terminal
167240
Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4
retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs
auxiliary contacts with lagging, leading or synchronised switching
Ambient Conditions
- Ambient temperature - -30 °C ... +80 °C
- Ambient temperature max. - +80 °C
- Ambient temperature min. - -30 °C
Auxiliary power
- Power dissipation max. - 3.80 W
Electrical Data
- Rated operational current - 80.000 A
- Rated operational voltage AC - 690.00 V
- Short-circuit protection max. - 160 A
- Short-circuit strength - 20.00 kA
- Tripping characteristic - gG
Explosion Protection
- Application range (zones) - 1, 2, 21, 22
- ATEX gas certificate - PTB 08 ATEX 1060 U
- Certificates - ATEX (PTB), Brazil (ULB), Canada (FM), IECEx (PTB), USA (FM)
- Explosion protection 2 - Class I, Zone 1 AEx db eb IIC
- Explosion protection 3 - Class I, Division 2
- Gas explosion protection ATEX - II 2 G Ex db eb IIC T6
- Gas explosion protection IECEx - Ex db eb IIC T6
- IECEX gas certificate - IECEx PTB 09.0011 U
- NEC 500 zones - Class I, Zone 1
- NEC 505 gas Ex-type - AEx
- NEC 505 zones - Class I, Division 2
General
- Functional Description - R. STAHL's 8544 series load and motor switches are used as Ex d load disconnect switches: They isolate and switch electric circuits in hazardous areas. They can also be used in non-hazardous areas. The innovative switch concept boasts simple, clear connections and an advanced contact system. A variety of terminals and contacts can be retrofitted.
- Highlights - Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4 retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs auxiliary contacts with lagging, leading or synchronised switching
- Product Description - Load and motor switch Load disconnect switch
- Product Type - 8544/1-41
- Title Product Variant Technical Data - 8544/1-41 Load and motor switch
- WebCode - 8544A
Mechanical Data
- Connection cross-section - 50.0 mm²
- Connection cross-section finely stranded max. - 50.00 mm²
- Connection cross-section min. - 6.00 mm²
- Connection cross-section solid max. - 10.00 mm²
- Connection terminals of auxiliary contact finely stranded max. - 2.50 mm²
- Connection terminals of auxiliary contact min. - 1.50 mm²
- Connection terminals of auxiliary contact solid max. - 2.50 mm²
- Connection terminals stranded max. - 50.00 mm²
- Contact material - silver stannic oxide
- Degree of protection (IP) - IP20
- Detailed number of poles - 3 P + N
- Enclosure material - Polyamide / Epoxy resin
- Service life, min. - 10,000 operating cycles
- Weight - 2.800 kg
Mounting / Installation
- Connection type - Screw terminal
171154
Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4
retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs
auxiliary contacts with lagging, leading or synchronised switching
Ambient Conditions
- Ambient temperature - -50 °C ... +80 °C
- Ambient temperature max. - +80 °C
- Ambient temperature min. - -50 °C
Auxiliary power
- Power dissipation max. - 3.80 W
Electrical Data
- Rated operational current - 80.000 A
- Rated operational voltage AC - 690.00 V
- Short-circuit protection max. - 160 A
- Short-circuit strength - 20.00 kA
- Tripping characteristic - gG
Explosion Protection
- Application range (zones) - 1, 2, 21, 22
- ATEX gas certificate - PTB 08 ATEX 1060 U
- Certificates - ATEX (PTB), Brazil (ULB), Canada (FM), IECEx (PTB), USA (FM)
- Explosion protection 2 - Class I, Zone 1 AEx db eb IIC
- Explosion protection 3 - Class I, Division 2
- Gas explosion protection ATEX - II 2 G Ex db eb IIC T6
- Gas explosion protection IECEx - Ex db eb IIC T6
- IECEX gas certificate - IECEx PTB 09.0011 U
- NEC 500 zones - Class I, Zone 1
- NEC 505 gas Ex-type - AEx
- NEC 505 zones - Class I, Division 2
General
- Functional Description - R. STAHL's 8544 series load and motor switches are used as Ex d load disconnect switches: They isolate and switch electric circuits in hazardous areas. They can also be used in non-hazardous areas. The innovative switch concept boasts simple, clear connections and an advanced contact system. A variety of terminals and contacts can be retrofitted.
- Highlights - Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4 retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs auxiliary contacts with lagging, leading or synchronised switching
- Product Description - Load and motor switch Load disconnect switch
- Product Type - 8544/1-32
- Title Product Variant Technical Data - 8544/1-32 Load and Motor switch
- WebCode - 8544A
Mechanical Data
- Connection cross-section - 50.0 mm²
- Connection cross-section finely stranded max. - 50.00 mm²
- Connection cross-section min. - 6.00 mm²
- Connection cross-section solid max. - 10.00 mm²
- Connection terminals of auxiliary contact finely stranded max. - 2.50 mm²
- Connection terminals of auxiliary contact min. - 1.50 mm²
- Connection terminals of auxiliary contact solid max. - 2.50 mm²
- Connection terminals stranded max. - 50.00 mm²
- Contact material - silver stannic oxide
- Degree of protection (IP) - IP20
- Detailed number of poles - 3 P
- Enclosure material - Polyamide / Epoxy resin
- Service life, min. - 10,000 operating cycles
- Weight - 2.200 kg
Mounting / Installation
- Connection type - Screw terminal
171156
Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4
retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs
auxiliary contacts with lagging, leading or synchronised switching
Ambient Conditions
- Ambient temperature - -50 °C ... +80 °C
- Ambient temperature max. - +80 °C
- Ambient temperature min. - -50 °C
Auxiliary power
- Power dissipation max. - 3.80 W
Electrical Data
- Rated operational current - 80.000 A
- Rated operational voltage AC - 690.00 V
- Short-circuit protection max. - 160 A
- Short-circuit strength - 20.00 kA
- Tripping characteristic - gG
Explosion Protection
- Application range (zones) - 1, 2, 21, 22
- ATEX gas certificate - PTB 08 ATEX 1060 U
- Certificates - ATEX (PTB), Brazil (ULB), Canada (FM), IECEx (PTB), USA (FM)
- Explosion protection 2 - Class I, Zone 1 AEx db eb IIC
- Explosion protection 3 - Class I, Division 2
- Gas explosion protection ATEX - II 2 G Ex db eb IIC T6
- Gas explosion protection IECEx - Ex db eb IIC T6
- IECEX gas certificate - IECEx PTB 09.0011 U
- NEC 500 zones - Class I, Zone 1
- NEC 505 gas Ex-type - AEx
- NEC 505 zones - Class I, Division 2
General
- Functional Description - R. STAHL's 8544 series load and motor switches are used as Ex d load disconnect switches: They isolate and switch electric circuits in hazardous areas. They can also be used in non-hazardous areas. The innovative switch concept boasts simple, clear connections and an advanced contact system. A variety of terminals and contacts can be retrofitted.
- Highlights - Three-pole and three-pole +N load disconnect switch with isolating functions that complies with IEC/EN 60947-4 retrofittable: Pick-off terminal block, auxiliary contact, Ex i isolating element, N terminal, PE terminal, parallel drive, adaptor plate for connecting cable lugs auxiliary contacts with lagging, leading or synchronised switching
- Product Description - Load and motor switch Load disconnect switch
- Product Type - 8544/1-42
- Title Product Variant Technical Data - 8544/1-42 Load and Motor switch
- WebCode - 8544A
Mechanical Data
- Connection cross-section - 50.0 mm²
- Connection cross-section finely stranded max. - 50.00 mm²
- Connection cross-section min. - 6.00 mm²
- Connection cross-section solid max. - 10.00 mm²
- Connection terminals of auxiliary contact finely stranded max. - 2.50 mm²
- Connection terminals of auxiliary contact min. - 1.50 mm²
- Connection terminals of auxiliary contact solid max. - 2.50 mm²
- Connection terminals stranded max. - 50.00 mm²
- Contact material - silver stannic oxide
- Degree of protection (IP) - IP20
- Detailed number of poles - 3 P + N
- Enclosure material - Polyamide / Epoxy resin
- Service life, min. - 10,000 operating cycles
- Weight - 2.800 kg
Mounting / Installation
- Connection type - Screw terminal
1 - 4 of 4 Part Numbers