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Contactor Series 8550

R. STAHL's Series 8550 contactor is a motor load contactor for use in motor starters up to 37 kW/50 hp at 400 or 480 V and in other power-based applications. It switches AC-3, AC-4, AC-5 and AC-6 loads just as reliably as AC-1 operating currents. Values are also available for DC-1, -3 and -5. With just three coil voltage ranges, control voltages of 20 to 280 volts are covered. Up to four auxiliary contacts are optionally available. Supplemented by the moulded case circuit breaker and overload relay also available in this series, motor starters up to 37 kW/50 hp at 400 or 480 V are available (other powers available on request).

  • Reliable control of motors and other loads in motor starters and power distribution boards
  • Reliable protection of motors in conjunction with the overload relay
  • International approvals for worldwide use
  • Ultimate flexibility thanks to wide-range coil voltages
  • Large cable dia. range of the main terminals

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Product Description
Product variant
Class1 Division and Zone
Rated actuating voltage
Rated operational current
Main contacts
Auxiliary contacts
Min. ambient temperature
Max. ambient temperature
Connection cross-section
Connection cross-section AWG

6 Products

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Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 307561
Product Type: 8550/1-CT-GLS3-80-25-U3S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 175 to 280 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 10 - 25 mm²
Connection cross-section AWG: 8 ... 4 AWG
Please select products you want to compare Compare
Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 307520
Product Type: 8550/1-CT-GLS3-80-25-U2S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 83 to 155 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 10 - 25 mm²
Connection cross-section AWG: 8 ... 4 AWG
Please select products you want to compare Compare
Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 307519
Product Type: 8550/1-CT-GLS3-80-25-U1S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 20 to 33 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 10 - 25 mm²
Connection cross-section AWG: 8 ... 4 AWG
Please select products you want to compare Compare
Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 287707
Product Type: 8550/1-CT-GLS3-80-95-U1S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 20 to 33 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 25 - 95 mm²
Connection cross-section AWG: 4 … 4/0 AWG
Please select products you want to compare Compare
Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 287708
Product Type: 8550/1-CT-GLS3-80-95-U2S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 83 to 155 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 25 - 95 mm²
Connection cross-section AWG: 4 … 4/0 AWG
Please select products you want to compare Compare
Ex Contactor Series 8550 R. STAHL

Contactor Series 8550

Art. No.: 283726
Product Type: 8550/1-CT-GLS3-80-95-U3S-22
min. ambient temperature: -25 °C
max. ambient temperature: +60 °C
Class 1 Division / Zone: Division 2 / Zone 1
Zone Filter: Zone 1 | 2 G | Gb / Zone 2 | 3 G | Gc
Product variant: with auxiliary contacts
Product Description: Contactor
Rated operational current: 80 A
Rated actuating voltage: 175 to 280 V AC/DC
Main contacts: 3-pole (3 NO)
Auxiliary contacts: 4 (2 NO + 2 NC)
Connection cross-section: 25 - 95 mm²
Connection cross-section AWG: 4 … 4/0 AWG

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