Albright's DC182B-733, 48VDC motor-reversing solenoid contactor with extended 'Normally Closed' contact and magnetic blowouts, intermittent.
- The DC182B series of contactors has been designed for direct current loads, particularly motors used on electric vehicles such as industrial trucks and airport tractors.
- They have double-breaking main contacts with Silver-alloy contact tips, which are weld-resistant, hardwearing and have excellent conductivity.
- The DC182B main contact circuit, designed for motor reversing, is such that it has a built-in failsafe, so that if both coils are energised simultaneously, the contact arrangement is open circuits.
- Double 'Normally Closed' fixed contact.
- M8 Male stud fixed contacts.
- Diode and 180 Ohm resistor on the coil , next to bracket, positive at the top.
- Lower coil terminals: 4.8mm, upper coil terminals: 6.3mm
- M8 male stud fixed contact
- Integral bracket
Magnetic Blowouts
These contactors are fitted with magnetic blowouts (denoted by the 'B' suffix in the DC182B range) across contact gaps. These enable high currents to be ruptured quickly, so that arcing time is reduced to a minimum. Fitting blowouts can make the contacts polarity sensitive, and the positive markings on the top cover of the contactor must be observed.
About The DC182B-733 Motor Reversing Solenoid
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 DC182 is a monoblock construction, resulting in a neat, compact design compatible with modern electronic control systems. The DC182 is physically and electrically interchangeable with the SW182 reversing contactor, but rewiring will be required.
This version of the DC182 has M8 male 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.
Interrupted Current: The opening and closing on load with frequent switching (resulting in increased contact resistance). |
Uninterrupted Current: No or infrequent load switching requirements (maintains a lower contact resistance). |
Specifications
Device Type | NO - SP - DT |
Voltage | 48V D.C. |
Coil Type | Intermittent |
Amps | 150A |
Coil Resistance (Ohms) | 73 |
Pull-In Voltage (V) | 29.0 Max. |
Drop Out Voltage (V) | 15.0 Max. |
Coil Power Dissipation (W) | 31.56 |
Typical Pull-In Time | 30ms |
Typical Voltage Drop Per Pole Across New Contacts At 100A | NO: < 30mV NC: < 40mV |
Operating Ambient Temperature | -40 to +60℃ |
Guideline Weight | 1.66kg |
Application | Uninterrupted |
Thermal Current Rating | 150A |
Intermittent Current Rating: |
30% Duty | 275A |
40% Duty | 240A |
50% Duty | 225A |
60% Duty | 200A |
70% Duty | 180A |