Albright DC182B-733 – 48V DC Motor Reversing Contactor with Magnetic Blowouts
The DC182B-733 is a high-performance motor reversing contactor designed for demanding DC applications, including electric vehicles, materials handling equipment, and industrial machinery. As part of Albright’s trusted DC182 series, this compact contactor is engineered for safe, efficient, and reliable bidirectional motor control.
Featuring magnetic blowouts for enhanced arc suppression, the DC182B-733 delivers superior performance in high-current environments. Its robust single-pole, double-throw (SPDT) design ensures long service life, mechanical reliability, and protection against simultaneous coil energization.
Key Features
Rated Voltage: 48V DC
Continuous Current: 150A (up to 275A intermittent)
Magnetic Blowouts: Fitted for safe, high-current switching
Contact Configuration: Monoblock reversing, failsafe design
Durability: Over 5 million mechanical cycles
Mounting: Compact with universal bracket, M8 terminals
Typical Applications: Forklifts, electric vehicles, winches, industrial trucks
Benefits
Reliable Reversing: Prevents contact damage from misoperation
Arc Suppression: Extends contact life under load
Compact & Serviceable: Easily integrates into DC systems
Custom Coil Options: Available in multiple voltages (24V, 36V, 80V, etc.)
The Albright DC182B-733 is the ideal choice for reversing motor control in DC circuits requiring consistent performance, compact design, and long operating life.
Albright HV500AF-38 – Hermetically Sealed Electromechanical High-Voltage DC ContactorThe Albright HV500AF-38 is an electromechanical, single-pole normally-open (SPST-NO) high-voltage DC contactor in the HV500 series. It uses physical main power contacts to connect and disconnect DC circuits; it is not a solid-state relay. This configuration uses a 48V DC control coil with PWM coil economiser. The stated 48V DC is the control-coil voltage, not the main circuit voltage.Features
Electromechanical DC switching with normally-open main contacts
Hermetically sealed HV500 contactor construction
HV500 series validated for applications up to 1000V DC, subject to application-specific switching ratings
Thermal current rating up to 500A with appropriately sized conductors and installation conditions; switching ratings must be checked separately
Non-polarity-sensitive main contacts
PWM coil economiser
Typical applicationsDesigned for DC power switching in electric vehicle battery systems, charging equipment, renewable-energy systems, energy storage and industrial DC equipment, subject to electrical design and application verification.Selection note: Verify load voltage, continuous and breaking current, coil supply, pre-charge requirements and control options against the exact Albright catalogue and application requirements. PWM electronics are used for the coil circuit, not for solid-state switching of the main current. The HV500 contactor is not a substitute for appropriately rated external circuit protection.Technical reference: Albright HV500 manufacturer specifications.
SW180AB-51 is an 48 volt 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 SW180AB 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 SW180AB 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.
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).
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).
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.
SW200A-14 Albright 250A/400A 48V INT 1-pole 1-throw Contactor
Product Overview: SW200A-14
The SW200A-14 by Albright is a high-performance 1-pole, 1-throw contactor designed for applications requiring reliable current switching in DC circuits. With a 48V DC operational voltage and capable of handling 250A continuous and 400A intermittent currents, this contactor is ideal for various industrial and automotive applications, such as electric vehicles, forklifts, and battery-powered systems.
Key Features
High Current Capacity: Supports 250A continuous and up to 400A intermittent operations, ensuring robust performance in demanding environments.
Durable Design: Equipped with silver-alloy tips on the contacts, providing excellent wear resistance and preventing welding during high-current switching operations.
Double-Break Contacts: Ensures reliable disconnection even under heavy loads, improving overall safety.
Single Pole, Single Throw (SPST): Simple, reliable control for switching in your circuit.
48V DC Operation: Suitable for various DC applications, especially in high-voltage electric vehicle or industrial setups.
Applications
Electric Vehicles
Material Handling Equipment (e.g., forklifts, cranes)
Battery Management Systems
Solar Power Inverters
Industrial Automation
Technical Specifications
Current Rating: 250A (continuous), 400A (intermittent)
Voltage Rating: 48V DC
Contact Type: 1-pole, 1-throw (SPST)
Contact Material: Silver alloy, double-breaking
Mounting: Versatile, with multiple orientation options for flexible installation.
Benefits
The SW200A-14 ensures high reliability and efficiency in applications where frequent switching under load is required. Its hard-wearing silver-alloy tips and double-break design make it a durable and safe choice, providing peace of mind in your DC power control systems.
About Intermittent - Int.) SW60 Solenoids 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. Magnetic Latching: Contact position is secured with the use of a permanent magnet within the coil assembly. The coil requires a pulse to close the contacts, and a reverse polarity pulse to operate the armature and open the contacts, but otherwise remains in the last energised state without the need for power. It should be noted therefore these are not failsafe. The SW60 features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW60 has M6 stud main terminals and 6.3mm spade coil connections. It can be mounted via M4 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be on the side or base of the contactor.
Type : SW60-44P
Coil Voltage (V) 48 CO DC
Coil Resistance (Ohms) 410
Pull In Voltage (V) 32.0 Maximum
Drop Out Voltage (V) 12.0 Maximum
Coil Power Dissipation (W) 5.62
Additional Features -
All figures above are stated at 20 degrees Celsius.
For the 3D picture I have attached an outline drawing 3060-400, if you require a 3D model in either STEP or IGES file format please inform us.
Magnetic Blowouts These open case contactors are of double break configuration and are fitted with magnetic blowouts - denoted by 'B' suffix in the SW60B range) across both contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts makes the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.About Continuous - CO.) SW60B Solenoids 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 SW60B features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW60B has M6 stud main terminals and 6.3mm spade coil connections. It can be mounted via M4 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be on the side or base of the contactor.
Genuine SW60B-515 ALBRIGHT 48V 80A CO DC - COntactor. The SW60B-515, a Albright SW60 series version equipped with magnetic blowouts - B) is a miniature series single pole contactor. SW60B is a free standing and compact, designed to fill the gap between 30 am
Genuine SW60B-514 ALBRIGHT 80V 80A CO DC Contactor.
The SW60B-514, an Albright SW60 series version equipped with magnetic blowouts - B) is a miniature series single pole contactor. SW60B is free-standing and compact, designed to fill the gap between 30 amperes and 100A /125A contactors.
Magnetic Blowouts These open case contactors are of double break configuration and are fitted with magnetic blowouts - denoted by 'B' suffix in the SW60B range) across both contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts makes the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.About Intermittent - Int.) SW60B Solenoids 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 SW60B features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW60B has M6 stud main terminals and 6.3mm spade coil connections. It can be mounted via M4 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be on the side or base of the contactor.
Magnetic Blowouts These open case contactors are of double break configuration and are fitted with magnetic blowouts - denoted by 'B' suffix in the SW60B range) across both contact gaps. These enable high currents to be ruptured very quickly so that arcing time is reduced to a minimum. Fitting of blowouts makes the contacts polarity sensitive and the positive markings on the top cover of the contactor must be observed.About Continuous - CO.) SW60B Solenoids 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 SW60B features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hardwearing and have excellent conductivity. The SW60B has M6 stud main terminals and 6.3mm spade coil connections. It can be mounted via M4 tapped holes or steel mounting brackets - supplied as separate items). Mounting can be on the side or base of the contactor.
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 SW80P features an enclosed top cover and offers environmental protection to IP66. The SW80P has M8 stud main terminals and 6.3mm spade coil connections. Mounted using supplied brackets, mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards.
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 SW80 has M8 stud main terminals and 6.3mm spade coil connections. Mounting is via the integral bracket formed into the coil housing case.
Mounting can be horizontal or vertical, when vertical the M8 contact studs should point upwards.
