STANDARD SW202
MOTOR REVERSING
The SW202 has been designed for Direct Current loads, originally for motors as used on electric vehicles, such as industrial trucks and airport tractors.
The main contact circuit, designed for motor reversing, has a built in failsafe, so that if both coils are energised simultaneously the contact arrangement is open circuit. The SW202 features single pole double throw, double breaking main contacts with silver alloy tips, which are weld resistant, hard wearing and have excellent conductivity. The SW202 has M10 stud main terminals and 6.3mm spade coil connections. It can be mounted via M5 tapped holes or mounting brackets – either supplied fitted, or as separate items. Mounting can be horizontal or vertical, when vertical the M10 contact studs should point upwards. If the requirement is for downwards orientation we can adjust the contactor to compensate for this.
Please note Normally Closed contacts are not suited to make and break load.
SW202 Technical Information
| Application | ||
| Thermal Current Rating | 250A | 250A |
| Intermittent Current Rating: | ||
| 30% Duty | 455A | 455A |
| 40% Duty | 395A | 395A |
| 50% Duty | 355A | 355A |
| 60% Duty | 325A | 325A |
| 70% Duty | 300A | 300A |
| Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*) | ||
| Blowouts | 1500A at 96V D.C. | |
| No Blowouts | 1500A 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 | - |
| No Blowouts | 48V | - |
| Typical Voltage Drop per pole across New Contacts at 250A | 40mV | |
| Mechanical Durability | > 5,000,000 Cycles | |
| Coil Voltage Available (Us) (Rectifier board required for A.C.) | 6 - 240V | |
SW202 Features
| Component | Configurations |
|---|---|
| Auxiliary |
STANDARD  STANDARD - GOLD  V3  V3 - GOLD |
| Coil Suppression |
 DIODE  DIODE AND RESISTOR  BI-DIRECTIONAL DIODE |
| Coil Terminations |
 AMP TAGS  FLYING LEADS  VACCUM IMPREGNATION |