Ferraz Shawmut TRS50R — 50A Class RK5 Tri‑Onic Time‑Delay Fuse (600V AC / 300V DC)
Ferraz Shawmut TRS50R — 50A Class RK5 Tri‑Onic Time‑Delay Fuse (600V AC / 300V DC) is backordered and will ship as soon as it is back in stock.
Pickup available at Wall
Usually ready in 24 hours
Description
Description
Product Description
The Ferraz Shawmut TRS50R is a 50‑amp, Class RK5, Tri‑Onic® time‑delay fuse engineered for reliable protection of motors, transformers, feeders, and branch circuits. This fuse provides current‑limiting performance to reduce fault energy and protect downstream equipment, while its time‑delay element supports high inrush loads such as motor startups and transformer energizing without nuisance tripping.
According to multiple listings, the TRS50R is rated for 50A, 600V AC, and 300V DCsec2sec10sec15. It features dual‑element time‑delay constructionsec2sec10, current‑limiting capabilitysec10, and a 5.5-inch length with 1.06-inch diametersec10sec15.
This fuse is part of the Tri‑Onic TRS‑R series, designed specifically for industrial motor circuits and general-purpose overcurrent protectionsec14sec21.
⭐ Key Features & Benefits
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50A, 600VAC / 300VDC rating for industrial circuitssec10sec15
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Tri‑Onic® dual‑element time‑delay handles motor and transformer inrush currentssec10sec18
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Current‑limiting design reduces peak let‑through energysec10
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Class RK5 fuse compatible with standard RK5 fuse blockssec2
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5.5" length × 1.06" diameter standard cartridge sizesec10sec15
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Engineered for motors, transformers, feeders, and branch circuitssec14[sec21](#sentenceindex-sec21]
🔧 Uses / Applications
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Motor circuit protection (high inrush loads)
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Transformer protection
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Feeder and branch‑circuit protection
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Service entrance equipment
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Industrial control panels
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HVAC, pumps, and manufacturing equipment
📊 Technical Specifications
| Specification | Detail |
|---|---|
| Manufacturer | Ferraz Shawmut / Mersen |
| Series | TRS‑R (Tri‑Onic®) |
| Part Number | TRS50R |
| Amp Rating | 50A |
| Voltage Rating | 600V AC / 300V DCsec10sec15 |
| Fuse Class | RK5sec2 |
| Type | Dual‑Element, Time‑Delaysec2sec10 |
| Body Style | Cartridge Fuse |
| Dimensions | 1.06" × 5.5"sec10sec15 |
| Features | Current‑Limitingsec10 |
| Applications | Motors, transformers, feeders, branch circuitssec14sec21 |
🔄 Cross‑Reference / Interchange Table
| Manufacturer | Equivalent / Related Part Numbers |
|---|---|
| Ferraz Shawmut / Mersen | TRS50R (OEM) |
| Bussmann | FRS‑R‑50 (verify Class RK5 match) |
| Littelfuse | FLSR50 (verify dimensions & interrupt rating) |
| General Replacement | Must match Class RK5, 50A, 600V, time‑delay |
Disclosure Policy
Disclosure Policy
This product was acquired by Freeman Liquidators from a sale of merchandise subject to a commercial insurance loss. Freeman Liquidators is a secondary seller of products, is not affiliated with or sponsored by the manufacturer of the products and is not a manufacturer authorized seller of the products. Sale of this product by Freeman Liquidators is not subject to the policies of the manufacturer. Any warranty offered by the manufacturer is not available to you as the purchaser.
All products are NEVER USED but external packaging will have damage. Some items may be placed into other packaging to ensure safe shipping. All items are opened for inspection prior to shipment to ensure the best quality of products. Freeman Liquidators guarantees your satisfaction. If you are not completely satisfied with a purchased product, within 30 days from the date of purchase, return the product in its packaging and Freeman Liquidators will fully refund your money.
Delivery and Shipping
Delivery and Shipping
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In all cases our staff audits for the best shipping cost and if necessary will contact our customer with recommendations.
Freight/Palleted items that are not accepted by the recipient or are sent back to us due to undeliverable address may be refunded, but the return shipping fees will be deducted from the overall amount of refund.
All returned items are subject to a 10% handling fee.
Ferraz Shawmut TRS50R — 50A Class RK5 Tri‑Onic Time‑Delay Fuse (600V AC / 300V DC) is backordered and will ship as soon as it is back in stock.
Ferraz Shawmut TRS50R — 50A Class RK5 Tri‑Onic Time‑Delay Fuse (600V AC / 300V DC)
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