Albright SW180-4 – 24V DC Continuous (CO) Solenoid Contactor, SPST-NO
The Albright SW180-4 is a heavy‑duty DC contactor designed for reliable switching of motors and other DC loads. This single‑acting, single‑pole, normally‑open contactor features silver‑alloy double‑breaking tips for long life and low resistance, with a 24VDC continuous (100% duty) coil.
Key Features
- Series: SW180 (single-acting)
- Coil: 24 VDC, Continuous (100% duty)
- Configuration: SPST, Normally Open (N/O)
- Main terminals: M8 studs
- Coil terminals: 6.3 mm spade connectors
- Mounting: M5 tapped holes or optional steel bracket
- Orientation: Horizontal or vertical (studs up recommended)
- Typical applications: Forklifts, pallet movers, scissor lifts, tow tugs, golf carts, winches, EV conversions, industrial DC systems
Ratings & Performance
| Thermal current (Ith) | 150 A |
| Application rating | Interrupted: 150 A | Uninterrupted: 200 A |
| Typical voltage drop @150 A | ~30 mV (per pole) |
| Breaking capacity (UL583 guide) | Up to 1000 A (48 V DC) for SW180 |
| Operating temperature | -40 °C to +60 °C |
| Mechanical durability | > 5 million operations |
| Coil pull-in (typ.) | ≤ 66% of rated coil voltage (continuous type) |
| Drop-out (typ.) | 10–25% of rated coil voltage |
| Weight (approx.) | ~0.64 kg |
What’s Included
- 1 × Albright SW180-4 contactor (24V DC, continuous)
Note: Mounting bracket and auxiliary contacts, if required, are sold separately.
Dimensions
Compact footprint for easy panel or chassis mounting. See manufacturer datasheet for detailed dimensions and drilling pattern.
Compatibility & Use
- Suitable for resistive, capacitive, and inductive DC loads
- Common in OEM and aftermarket service for material handling and utility EVs
- Check coil voltage (24 VDC) and current ratings against your application
Installation Notes
- Use appropriately rated cable/busbar and protective devices
- For vertical mounting, orient with M8 studs upward (contact us if studs-down is required)
- Observe polarity if optional suppression or blowouts are used