STANDARD SW121
DP - DT
The SW121 has been designed for Direct Current loads, typical applications include motors as used on small electric vehicles such as light industrial trucks and powered cars. These contactors are not polarity sensitive thus they can be used for switching Alternating Current loads.
SW121 Technical Information
| Application | ||
| Thermal Current Rating | 125A | 125A |
| Intermittent Current Rating: | ||
| 30% Duty | 210A | 210A |
| 40% Duty | 190A | 190A |
| 50% Duty | 170A | 170A |
| 60% Duty | 150A | 150A |
| 70% Duty | 140A | 140A |
| Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*) | ||
| Blowouts | - | |
| No Blowouts | 1000A at 80V D.C. | |
| Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*) | ||
| Blowouts | - | |
| No Blowouts | - | |
| Maximum Recommended Contact Voltages | ||
| Blowouts | - | - |
| No Blowouts | 80V | 96V |
| Typical Voltage Drop per pole across New Contacts at 100A | 40mV | |
| Mechanical Durability | > 3,000,000 Cycles | |
| Coil Voltage Available (Us) (Rectifier board required for A.C.) | 6 - 240V | |
SW121 Features
| Component | Configurations |
|---|---|
| Auxiliary |
STANDARD  STANDARD - GOLD |
| Coil Suppression |
 DIODE  DIODE AND RESISTOR  BI-DIRECTIONAL DIODE |
| Coil Terminations |
 AMP TAGS  FLYING LEADS  VACCUM IMPREGNATION |