The SW88 has been designed for direct current loads, particularly motors as used on electric vehicles such as industrial trucks. Developed for both interrupted and uninterrupted loads, the SW88 is suitable for switching Resistive, Capacitive and Inductive loads.
The SW88 features single pole double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity. The SW88 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. The SW88 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. If the requirement is for downwards orientation we can adjust the contactor to compensate for this.
SW88
MOTOR REVERSING
| Application | Interrupted | Uninterrupted |
| Thermal Current Rating | 100A | 100A |
| Intermittent Current Rating: | ||
| 30% Duty | 185A | 185A |
| 40% Duty | 160A | 160A |
| 50% Duty | 140A | 140A |
| 60% Duty | 130A | 130A |
| 70% Duty | 120A | 120A |
| Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*) | ||
| Blowouts | 600A at 80V D.C. | |
| No Blowouts | 800A at 48V D.C. | |
| Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*) | ||
| Blowouts | – | |
| No Blowouts | – | |
| Maximum Recommended Contact Voltages | ||
| Blowouts | 96V | 96V |
| No Blowouts | 48V | 48V |
| Typical Voltage Drop per pole across New Contacts at 100A | 50mV | |
| Mechanical M.T.B.F | >5000000 Operations | |
| Coil Voltage Available (Us) (Rectifier board required for A.C.) | 6 – 240V | |