DC/AC dual-use, high electrical and mechanical durability, and easy maintenance and inspection.
Various contact configurations are available.
Various contact configurations are available.
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Low-voltage electromagnetic contactor
Low voltage electromagnetic contactor HU type
▼Features
■Variety of Contact Arrangements
Both main and auxiliary contacts may be converted from NO to NC or vice versa to suit any specific application.
■Greater Mechanical Withstandabillity under Heavy Duty
The contactors are sturdily constructed of thoroughly inspected high quality components. The moving shaft is supported on a synthetic resin bearing which requires no lubrication, extending mechanical life.
■High Performance and Long electrical Life
All contactors are designed and engineered to surpass JEM*performance standards, and assure long electrical life.
■Greater Environmental Immunity
The contactors are impervious to environmental hazards. They give successful operation, even in dusty atmospheres-no humming of the magnets and no changes in operating characteristics.
■Ease of Inspection and Maintenance
The contactors permit easy access to their components and parts from the front for inspection and maintenance.
*Japan Electrical Manufacturers' Association.
■Variety of Contact Arrangements
Both main and auxiliary contacts may be converted from NO to NC or vice versa to suit any specific application.
■Greater Mechanical Withstandabillity under Heavy Duty
The contactors are sturdily constructed of thoroughly inspected high quality components. The moving shaft is supported on a synthetic resin bearing which requires no lubrication, extending mechanical life.
■High Performance and Long electrical Life
All contactors are designed and engineered to surpass JEM*performance standards, and assure long electrical life.
■Greater Environmental Immunity
The contactors are impervious to environmental hazards. They give successful operation, even in dusty atmospheres-no humming of the magnets and no changes in operating characteristics.
■Ease of Inspection and Maintenance
The contactors permit easy access to their components and parts from the front for inspection and maintenance.
*Japan Electrical Manufacturers' Association.
Ratings and Specifications
Table 1 Ratings and Specifications of Low-Voltage Clapper Type 1- and 2- Pole
Magnetic Contactors for Use in DC Circuit
Magnetic Contactors for Use in DC Circuit
Type HU | -431 E (1-pole) | -432 E (2-pole) | -451 E (1-pole) | -452 E (2-pole) | -461 E (1-pole) | -462 E (2-pole) | -471 E (1-pole) | -472 E (2-pole) | -481 E (1-pole) | -482 E (2-pole) | -4891 E (1-pole) | -4892 E (2-pole) | -591 E (1-pole) | -592 E (2-pole) | ||
Rated Insulation Voltage (V) | 600 | 600 | 600 | 600 | 600 | 600 | 600 | |||||||||
Rated Thermal Current (A) | 50 | 100 | 200 | 400 | 600 | 800 | 1200 | |||||||||
Rated Opera- tional Current* (A) | Class DC-4 | 220 V | 50 | 50 | 90 | 100 | 180 | 200 | 360 | 400 | 600 | 600 | 600 | 800 | ー | ー |
440 V | 40 | 50 | 50 | 100 | 100 | 200 | 250 | 300 | 400 | 600 | 400 | 600 | ー | ー | ||
550 V | 30 | 50 | 50 | 100 | 100 | 200 | 250 | 250 | 300 | 400 | 300 | 400 | ー | ー | ||
Class DC-1 | 220 V | 50 | 50 | 100 | 100 | 200 | 200 | 400 | 400 | 600 | 600 | 800 | 800 | 1200 | ||
440 V | 50 | 50 | 100 | 100 | 200 | 200 | 400 | 400 | 600 | 600 | 800 | 800 | ||||
550 V | 50 | 50 | 100 | 100 | 200 | 200 | 400 | 400 | 600 | 600 | 800 | 800 | ||||
Number of Main Contacts | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | 1 | 2 | ||
Auxiliary Contact Arrangement+ | 2NO 1NC | 2NO 1NC | 2NO 1NC | 2NO 1NC | 4NO 3NC | 4NO 3NC | 4NO 3NC | 4NO 2NC | ||||||||
Control Circuit Voltage | 220 V DC (Standard), 110 V DC | |||||||||||||||
Switching Frequency | 1200 Operations/Hour (Class 1*) | 300 Operations/Hour (Class 3*) | ||||||||||||||
Life | Mechanical over 5,000,000 operations, electrical over 500,000 operations (Class 1*) | Mechanical over 1,000,000 operations, Electrical over 100,000 operations (Class 3*) | ||||||||||||||
Standard | JEM-1038 Magnetic Contactors | |||||||||||||||
* Classified according to the breaking current and making current capacity, and specified by JEM-1138 as follows:
DC-4----Capable of making and breaking the current of 4 times the rated value in a circuit with time constant (L/R) not exceeding 0.015 sec.
Suited for the switching of a series motor main circuit.
CD-1----Capable of making and breaking the current of 1 time the rated value in a circuit with time constant (L/R) not exceeding 0.001 sec.
Suited for resistor circuit switching.
+ Shows the number of contacts available for control circuit.
Note: Each rated and applicable current of main NC contacts is 60% of these of main NO contacts.
DC-4----Capable of making and breaking the current of 4 times the rated value in a circuit with time constant (L/R) not exceeding 0.015 sec.
Suited for the switching of a series motor main circuit.
CD-1----Capable of making and breaking the current of 1 time the rated value in a circuit with time constant (L/R) not exceeding 0.001 sec.
Suited for resistor circuit switching.
+ Shows the number of contacts available for control circuit.
Note: Each rated and applicable current of main NC contacts is 60% of these of main NO contacts.
Table 2 Ratings and Specifications of Low Voltage Clapper Type 3-Pole
Magnetic Contactors for Use in AC Circuit
Magnetic Contactors for Use in AC Circuit
Type HU | -433 E (3-pole) | -453 E (3-pole) | -463 E (3-pole) | -473 E (3-pole) | -483 E (3-pole) | -4893 E (3-pole) | -593 E (3-pole) | ||
Rated Insulation Voltage (V) | 600 | 600 | 600 | 600 | 600 | 600 | 600 | ||
Rated Thermal Current (A) | 50 | 100 | 200 | 400 | 600 | 800 | 1200 | ||
Rated Operational Current* (A) | Class AC-3 | 200/220 V | 50 | 100 | 200 | 400 | 600 | 800 | ー |
400/440 V | 40 | 65 | 120 | 240 | 600 | 750 | |||
500/550 V | 30 | 50 | 100 | 200 | 600 | 600 | |||
Class AC-2 | 200/220 V | 50 | 100 | 200 | 400 | 600 | 800 | 1200 | |
400/440 V | 50 | 100 | 200 | 400 | 600 | 800 | |||
500/550 V | 50 | 100 | 200 | 400 | 600 | 800 | |||
Class AC-1 | 200/220 V | 50 | 100 | 200 | 400 | 600 | 800 | 1200 | |
400/440 V | 50 | 100 | 200 | 400 | 600 | 800 | |||
500/550 V | 50 | 100 | 200 | 400 | 600 | 800 | |||
Number of Main Contacts | 3 | 3 | 3 | 3 | 3 | 3 | 3 | ||
Auxiliary Contact Arrangement+ | 2NO 1NC | 2NO 1NC | 2NO 1NC | 2NO 1NC | 4NO 3NC | 4NO 3NC | 4NO 2NC | ||
Control Circuit Voltage | 220 V DC (Standard), 110 V DC | ||||||||
Switching Frequency | 1200 Operations/Hour (Class 1*) | 300 Operations/Hour (Class 3*) | |||||||
Life | Mechanical over 5,000,000 operations, Electrical over 500,000 operations (Class 1*) | # | |||||||
Standard | JEM-1038 Magnetic Contactors | ||||||||
* The Standard of Japan Electrical Manufacturers' Association.
* The rated operational currents are classified according to the type of load to be applied as follows:
AC-3----Suited for across-the-line starters, and used as run contactor of autotransformer starters or wye-delta starters for squirrel-cage
induction motors.
AC-2 B----Suited for primacy circuit of wound rotor induction motors, and used as run contactor of reactor or primacy resistance starters for
squirrel-cage induction motors, and as start contactor of autotransformer starters or wye-delta starters for squirrel-cage induction motors.
AC-1----Suited for a resistance load.
+ Shows the number of contacts available for control circuit.
# Mechanical over 1,000,000 operations, Electrical over 100,000 operations (Class 3*)
* The rated operational currents are classified according to the type of load to be applied as follows:
AC-3----Suited for across-the-line starters, and used as run contactor of autotransformer starters or wye-delta starters for squirrel-cage
induction motors.
AC-2 B----Suited for primacy circuit of wound rotor induction motors, and used as run contactor of reactor or primacy resistance starters for
squirrel-cage induction motors, and as start contactor of autotransformer starters or wye-delta starters for squirrel-cage induction motors.
AC-1----Suited for a resistance load.
+ Shows the number of contacts available for control circuit.
# Mechanical over 1,000,000 operations, Electrical over 100,000 operations (Class 3*)
Table 3 Ratings and Specifications of
Auxiliary Contacts
Auxiliary Contacts
Application | Rated Operational Current (A) | |||||||
AC Circuit | DC Circuit | |||||||
Standard Rating | Special Rating | Standard Rating | With Permanent Magnet* | Special Rating+ | ||||
Inductive Load | Resistive Load | Inductive Load | Inductive Load | Resistive Load | Inductive Load | |||
Circuit Voltage (V) | 110 | 10 | 10 | 6 | 1.5 | 3 | 5 | 1.5 |
220 | 10 | 10 | 3 | 0.8 | 2 | 1.5 | 0.5 | |
440 | 5 | 5 | ー | ー | ー | ー | ー | |
550 | 3 | 3 | ー | ー | ー | ー | ー | |
* Available on request when a large current capacity is required.
+ Used for Type HU-45□E, -46□E, and -47□E, when some of their auxiliary contacts have to be changed for DC circuit operation.
Notes:
1. The making and breaking current in an AC circuit is more than 10 times the rated operational current with power factor of inductive load
at 0.3 to 0.4.
2. The breaking current capacity in a DC circuit is more than 1.4 times the rated operational current with time constant of inductive load
at 0.08 to 0.1 second.
3. The ratings of 1NO contact incorporated circuit is different from Table 3.
+ Used for Type HU-45□E, -46□E, and -47□E, when some of their auxiliary contacts have to be changed for DC circuit operation.
Notes:
1. The making and breaking current in an AC circuit is more than 10 times the rated operational current with power factor of inductive load
at 0.3 to 0.4.
2. The breaking current capacity in a DC circuit is more than 1.4 times the rated operational current with time constant of inductive load
at 0.08 to 0.1 second.
3. The ratings of 1NO contact incorporated circuit is different from Table 3.
Dimensions (㎜)
