SW180B-1248L Albright 150A 12V INT 1-pole 1-throw Contactor
SW180B-1248L, a SW180L series of contactors, equipped with magnetic blowouts - B and larger contact tips (L) and has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks
Continuous contactors by design are predominantly used for drive functions on vehicles, they make and break slower than intermittent solenoids and are recommended for prolonged contact periods.The SW180B has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW180B is suitable for switching Resistive, Capacitive and Inductive loads.The SW180B features single pole single throw, double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW180B has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards.
SW180B-448L Albright 150A 12V INT 1-pole 1-throw Contactor
SW180B-448L, a SW180L series of contactors, equipped with magnetic blowouts - B and larger contact tips (L) and has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks
About Continuous - CO.) SW181-4 Solenoids Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods. The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
About Continuous - CO.) SW181-8 Solenoids Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods. The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
SW181A-48 ALBRIGHT 24V 150A CO DC - Contactor
The SW181A-48, a SW181 series of contactor with auxilary contacts (A) fitted, has been designed for direct current loads. This including motors on electric vehicles such as industrial trucks.
Magnetic Blowouts Fitted, option "B"
These contactors are fitted with magnetic blowouts - denoted by 'B' suffix in the SW181B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.
About Continuous - SW181AB-48 Solenoid
Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods.
The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Difference between Interrupted and Uninterrupted
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
Magnetic Blowouts These contactors are fitted with magnetic blowouts - denoted by 'B' suffix in the SW181B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.About Continuous - CO.) SW181AB-52 Solenoids Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods. The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
Albright SW181B-141 24V DC CO - Continuous
CO-type (Continuous) can be run always on
Magnetic Blowouts
These contactors are fitted with magnetic blowouts - denoted by 'B' suffix in the SW181B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.
This SW181B-141 is also used in Haulotte machines under code 2440318890 - Contactor 24V Albright SW181B-141
Haulotte 2440318890 Contactor 24V, fits Haulotte HA15IP / HA43JE / HA12IP / HA33JE
About SW181B-141 Solenoids
Continuous contactors by design are predominantly for drive functions on vehicles, they have weaker coils, switch slightly slower than intermittent solenoids and are recommended for prolonged contact periods.
The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
Magnetic Blowouts
These contactors are fitted with magnetic blowouts - denoted by 'B' suffix in the SW181B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.
About Intermittent - INT) SW181B-241TSolenoids
Intermittent contactors by design are predominantly used for hydraulic functions on vehicles, they make and break quicker than continuous solenoids and are not recommended for prolonged contact periods. The SW181 has M8 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets purchased as separate items. Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards. Please note Normally Closed contacts are not suited to make and break load.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
High‑performance Albright SW182B‑2 12 V DC reversing contactor, 150 A continuous with magnetic blowouts—ideal for EVs, industrial trucks, winches.
SW182B-2 Albright 150A 12V DC - CO - Motor Reversing Contactor
The SW182B-2 is a robust, continuous-duty motor reversing contactor from Albright, engineered for use in electric vehicles, industrial trucks, and heavy-duty DC applications. Designed to support prolonged current flow, this contactor is built with two SPDT units mounted on a common bracket, allowing for safe and reliable motor reversing.
Key Features
Voltage: 12V DC
Current Rating: 150A continuous
Configuration: Dual SPDT (motor reversing)
Duty Cycle: Continuous (CO)
Magnetic Blowouts: Included for arc suppression (polarity sensitive)
Main Terminals: M8 studs
Coil Terminals: 6.3 mm spade connectors
Mounting: Horizontal or vertical (studs up when vertical)
Technical Highlights
Silver alloy contact tips: Highly conductive, weld-resistant, and durable
Double-breaking main contacts: Ensures high performance and longevity
Failsafe reversing circuit: Prevents short circuit if both coils are powered simultaneously
Magnetic blowouts: Rapid arc quenching improves safety and extends contact life
Continuous-duty design: Optimized for drive functions with slow, stable switching under sustained loads
Usage Notes
Polarity Matters: Magnetic blowouts make contactors polarity-sensitive; follow ‘+’ markings
Interrupted Load Switching: Can increase resistance due to frequent arcing
Uninterrupted Load: Maintains low resistance and prolongs contact integrity
Ideal Applications
Electric drive systems
Forklifts and material handling equipment
Winches and traction systems
Battery-powered vehicles and tools
About the Continuous SW182B-4 Reversing Contactors Continuous contactors by design are predominantly for drive functions on vehicles; they make and break slower than intermittent solenoids, and are recommended for prolonged contact periods. The SW182B is a configuration of two 'Single Pole, Double Throw' type contactors on a common bracket for motor reversing. The SW182B features single-pole double-breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW182B main contact circuit, designed for motor reversing, is such that it has a built-in failsafe, so that if both coils are energized simultaneously the contact arrangement is open circuits. The SW182B has M8 stud main terminals and 6.3mm spade coil connections. Mounted using the supplied bracket, mounting of the solenoids can be horizontal or vertical, when vertical the M8 contact studs should point upwards.
Interrupted current - opening and closing on load with frequent switching - results in increased contact resistance).
Uninterrupted current - no or infrequent load switching requirements - maintains a lower contact resistance).
Magnetic Blowouts These contactors are fitted with magnetic blowouts - denoted by 'B' suffix in the SW182B range) across contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts can make the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.
Intermittent contactors by design are predominantly used for hydraulic functions on vehicles, they make and break quicker than continuous solenoids and are not recommended for prolonged contact periods.The SW200 has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW200 is suitable for switching Resistive, Capacitive, and Inductive loads. The SW200 features single pole single throw, double-breaking main contacts with silver alloy tips, which are weld resistant, hardwearing, and have excellent conductivity. The SW200 has M10 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be horizontal or vertical, when vertical the M10 contact studs should point upwards.
Continuous contactors by design are predominantly used for drive functions on vehicles, they make and break slower than intermittent solenoids and are recommended for prolonged contact periods.The SW200 has been designed for direct current loads, including motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW200 is suitable for switching Resistive, Capacitive, and Inductive loads. The SW200 features single pole single throw, double-breaking main contacts with silver alloy tips, which are weld resistant, hardwearing, and have excellent conductivity. The SW200 has M10 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be horizontal or vertical, when vertical the M10 contact studs should point upwards.
