Bussmann
Bussmann LPS-RK-150SPI fuse RK1 time-delay 150A 600V AC 300V DC indicating
A 150 A, 600 V AC / 300 V DC RK1 time-delay fuse with a built-in indicator for quick fault identification
- Time-delay protection handles motor-start surges without nuisance trips
- 150 A rating matches high-current generator and panel feeds
- 600 V AC and 300 V DC ratings cover industrial and solar circuits
- Indicating window shows blown status at a glance
- 300 kA interrupt at 600 V AC clears massive faults safely
Application & Purpose
The Eaton Bussmann LPS-RK-150SPI is a UL Class RK1 fuse rated for 150 amps at 600 volts AC and 300 volts DC. It is designed for industrial power systems that require time-delay performance to withstand motor inrush currents while providing high interrupting protection. The indicating feature gives immediate visual confirmation of fuse status for maintenance crews.
Capacity & Headroom
This fuse delivers a 300kA interrupting rating at 600V AC and 100kA at 300V DC, handling severe fault currents in heavy-duty service. The dual-element construction allows it to absorb temporary overloads without nuisance opening. It reaches its limit when sustained current exceeds the 150A rating or when system voltage surpasses the 600V AC or 300V DC maximums.
Bundled Features
The built-in indicator removes guesswork during troubleshooting by showing instantly whether the element has melted. Its rejection-style blade body fits only compatible fuse blocks such as the HM600 or RM600 series, preventing incorrect installation. The melamine body and dual-element design are integral to the fuse itself rather than separate accessories.
Highlights
- Time-delay protection handles motor-start surges without nuisance trips
- 150 A rating matches high-current generator and panel feeds
- 600 V AC and 300 V DC ratings cover industrial and solar circuits
- Indicating window shows blown status at a glance
- 300 kA interrupt at 600 V AC clears massive faults safely
Specifications
| Brand | EATON BUSSMANN |
|---|
Questions about this item
Will the 150 A 600 V AC rating match the generator panel I already have?
Yes, the fuse is rated 150 A at 600 V AC and 300 V DC, so it fits panels specified for those voltages and currents.
How can I confirm the LPS-RK-150SPI has operated after a fault?
The indicating body shows a visible flag once the element has opened, letting you see at a glance that the fuse has blown.
Does the box include a compatible fuse block or must I buy one separately?
Only the fuse is supplied; a Class RK1 rejection-style block such as the HM600 or RM600 series must be purchased separately.
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