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ChatMROCustom Single-Throw Fused Safety Switches
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| Nema Enclosure Rating | Amps | Number Of Poles | Number Of Wires | Enclosure Material | Voltage | Protection Method | Environment | Price |
|---|---|---|---|---|---|---|---|---|
| NEMA 1 | 30A | 3 | 3 | Steel | 600V | - | - | $1,845.59 |
| NEMA 1 | 30A | 3 | 3 | Steel | 600V | Fusible | Indoor | $412.77 |
| NEMA 1 | 30A | 3 | 4 | Steel | 240V | - | - | $892.04 |
| NEMA 1 | 60A | 3 | 3 | Steel | 600V | Fusible | Indoor | $485.95 |
| NEMA 1 | 60A | 3 | 3 | Steel | 600V | - | - | RFQ |
| NEMA 1 | 60A | 3 | 4 | Steel | 240V | - | - | $1,505.87 |
| NEMA 1 | 100A | 3 | 3 | Steel | 600V | - | - | $1,114.13 |
| NEMA 1 | 100A | 3 | 4 | Steel | 240V | - | - | $2,398.89 |
| NEMA 1 | 200A | 3 | 3 | Steel | - | - | - | $2,777.15 |
| NEMA 1 | 600A | - | 4 | - | 600V | - | - | $22,517.75 |
| NEMA 3R | 30A | 2 | 3 | Galvanized Steel | 240V | - | - | $1,463.83 |
| NEMA 3R | 30A | 3 | 3 | Galvanized Steel | 600V | - | - | $3,241.00 |
| NEMA 3R | 30A | 3 | 3 | Galvanized Steel | 600V | - | - | $2,798.11 |
| NEMA 3R | 30A | 3 | 3 | Galvanized Steel | 600V | - | - | $3,470.54 |
| NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 240V | - | - | $1,721.24 |
| NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 240V | - | - | $1,836.81 |
| NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 600V | - | - | RFQ |
| NEMA 3R | 60A | 2 | 3 | Galvanized Steel | 240V | - | - | $2,391.90 |
| NEMA 3R | 60A | 2 | 3 | Galvanized Steel | 240V | - | - | RFQ |
| NEMA 3R | 60A | 2 | 3 | Galvanized Steel | 240V | - | - | $2,475.96 |
| NEMA 3R | 60A | 3 | 3 | Galvanized Steel | - | - | - | RFQ |
| NEMA 3R | 60A | 3 | 3 | Galvanized Steel | 600V | - | - | $3,283.19 |
| NEMA 3R | 60A | 3 | 3 | Galvanized Steel | 600V | - | - | $5,161.27 |
| NEMA 3R | 60A | 3 | 3 | Galvanized Steel | 600V | - | - | $3,013.50 |
| NEMA 3R | 60A | 3 | 3 | Galvanized Steel | 600V | - | - | $2,822.10 |
| NEMA 3R | 60A | 3 | 4 | Galvanized Steel | 240V | - | - | $2,693.10 |
| NEMA 3R | 60A | 3 | 4 | Galvanized Steel | 240V | - | - | $2,810.40 |
| NEMA 3R | 60A | 3 | 4 | Galvanized Steel | 600V | - | - | $3,092.16 |
| NEMA 3R | 60A | 3 | 4 | Galvanized Steel | 600V | - | - | $3,460.01 |
| NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | $5,439.87 |
| NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | $4,699.74 |
| NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | $4,410.83 |
| NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | $6,687.16 |
| NEMA 3R | 100A | 3 | 4 | Galvanized Steel | 240V | - | - | $3,868.01 |
| NEMA 3R | 200A | 3 | 3 | Galvanized Steel | 600V | - | - | $6,880.52 |
| NEMA 3R | 200A | 3 | 3 | Galvanized Steel | 600V | - | - | $6,275.64 |
| NEMA 3R | 200A | 3 | 4 | Galvanized Steel | 240V | - | - | $5,191.74 |
| NEMA 3R | 200A | 3 | 4 | Galvanized Steel | 600V | - | - | $7,088.14 |
| NEMA 3R | 400A | 3 | 3 | Galvanized Steel | 600V | - | - | $16,354.89 |
| NEMA 3R | 400A | 3 | 4 | Galvanized Steel | 240V | - | - | RFQ |
| NEMA 3R | 400A | 3 | 4 | Galvanized Steel | 600V | - | - | $17,351.17 |
| NEMA 4X | 30A | 2 | 2 | Stainless Steel | 600V | - | - | $2,385.29 |
| NEMA 4X | 30A | 2 | 2 | Stainless Steel | 600V | - | - | $7,198.44 |
| NEMA 4X | 30A | 2 | 3 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 30A | 2 | 3 | Stainless Steel | 240V | - | - | $1,348.29 |
| NEMA 4X | 30A | 3 | 3 | Stainless Steel | 240V | - | - | $6,368.47 |
| NEMA 4X | 30A | 3 | 4 | Stainless Steel | 240V | - | - | $6,007.74 |
| NEMA 4X | 60A | 2 | 3 | Stainless Steel | 240V | - | - | $6,403.47 |
| NEMA 4X | 60A | 3 | 3 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 60A | 3 | 3 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 60A | 3 | 4 | Stainless Steel | 240V | - | - | $7,263.24 |
| NEMA 4X | 100A | 3 | 4 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 100A | 3 | 4 | Krydon, Non Metallic | 240V | - | - | $22,217.97 |
| NEMA 4X | 200A | 2 | 2 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 200A | 2 | 3 | Stainless Steel | 240V | - | - | $4,648.96 |
| NEMA 4X | 200A | 2 | 3 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 200A | 3 | 3 | Stainless Steel | 240V | - | - | $21,909.39 |
| NEMA 4X | 200A | 3 | 3 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 200A | 3 | 3 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 200A | 3 | 4 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 200A | 3 | 4 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 200A | 3 | 4 | Stainless Steel | 600V | - | - | $22,341.41 |
| NEMA 4X | 400A | 2 | 3 | Stainless Steel | 240V | - | - | $42,275.87 |
| NEMA 4X | 400A | 3 | 3 | Stainless Steel | 240V | - | - | $48,280.01 |
| NEMA 4X | 400A | 3 | 3 | Stainless Steel | 600V | - | - | $46,225.73 |
| NEMA 4X | 400A | 3 | 3 | Stainless Steel | 600V | - | - | $50,907.37 |
| NEMA 4X | 400A | 3 | 4 | Stainless Steel | 240V | - | - | $46,225.73 |
| NEMA 4X | 400A | 3 | 4 | Stainless Steel | 600V | - | - | $51,295.32 |
| NEMA 4X | 400A | 3 | 4 | Stainless Steel | 600V | - | - | $48,227.12 |
| NEMA 4 | 400A | 3 | 4 | Steel | 600V | - | - | $39,454.53 |
| NEMA 4X | 600A | 2 | 3 | Stainless Steel | 240V | - | - | $55,139.37 |
| NEMA 4X | 600A | 3 | 3 | Stainless Steel | 240V | - | - | $68,717.03 |
| NEMA 4X | 600A | 3 | 3 | Stainless Steel | 600V | - | - | $73,513.28 |
| NEMA 4X | 600A | 3 | 3 | Stainless Steel | 600V | - | - | $65,587.11 |
| NEMA 4X | 600A | 3 | 4 | Stainless Steel | 240V | - | - | $62,448.37 |
| NEMA 4X | 600A | 3 | 4 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 600A | 3 | 4 | Stainless Steel | 600V | - | - | $67,473.87 |
| NEMA 4 | 600A | 3 | 4 | Steel | 600V | - | - | $59,239.12 |
| NEMA 4X | 800A | 3 | 3 | Stainless Steel | 240V | - | - | $74,271.51 |
| NEMA 4X | 800A | 3 | 3 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 1200A | 3 | 3 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 1200A | 3 | 3 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 4X | 1200A | 3 | 4 | Stainless Steel | 240V | - | - | RFQ |
| NEMA 4X | 1200A | 3 | 4 | Stainless Steel | 600V | - | - | RFQ |
| NEMA 7, NEMA 9 | 30A | 3 | 3 | Cast Aluminum | 250V DC/600/480V AC | - | - | $7,528.80 |
| NEMA 12 | 1200A | 2 | 2 | Galvanized Steel | 240V | - | - | RFQ |
| NEMA 12, NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 600V | - | - | $3,002.99 |
| NEMA 12, NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 600V AC/250V DC | - | - | $2,777.13 |
| NEMA 12, NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 600V AC/250V DC | - | - | $8,781.39 |
| NEMA 12, NEMA 3R | 30A | 3 | 4 | Galvanized Steel | 600V AC/250V DC | - | - | $5,748.59 |
| NEMA 12, NEMA 3R | 60A | 3 | 3 | Galvanized Steel | 600V | - | - | RFQ |
| NEMA 12, NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | $4,566.90 |
| NEMA 12, NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | RFQ |
| NEMA 12, NEMA 3R | 100A | 3 | 3 | Galvanized Steel | 600V | - | - | RFQ |
| NEMA 12, NEMA 3R | 200A | 3 | - | Galvanized Steel | 600V | - | - | $7,709.74 |
| NEMA 12, NEMA 3R | 200A | 3 | 3 | Galvanized Steel | 600V | - | - | RFQ |
| NEMA 12, NEMA 3R | 400A | 3 | 3 | Galvanized Steel | 600V | - | - | $16,028.69 |
| NEMA 12, NEMA 3R | 400A | 3 | 4 | Galvanized Steel | 600V | - | - | $17,421.72 |
| NEMA 12, NEMA 3R | 600A | 3 | 3 | Galvanized Steel | 600V | - | - | $32,489.37 |
| NEMA 12, NEMA 3R | 600A | 3 | 4 | Galvanized Steel | 600V | - | - | $33,573.83 |
Working Mechanism
- A fuse in a switch consists of a metal wire or filament made of low melting-point metal, is enclosed in a heat-resistant glass or ceramic tube.
- When the current flowing through the fuse exceeds the rated current limit, the metal filament heats up & melts, causing the electrical circuit to break and interrupt the flow of electricity.
- The fuse can be replaced after it has blown, restoring the electrical circuit and allowing the switch to function normally.
- The switch, on the other hand, operates manually by turning the handle, which opens or closes the contacts inside the switch, thus controlling the flow of electrical power to the connected load.
Frequently Asked Questions
What is the use of a mechanically interlocked cover?
- The mechanically interlocked cover prevents access to the switch when it is in the on position to prevent the risk of electrical shocks.
What are visible blades?
- Eaton heavy-duty switches come with enhanced visible blades making it easier to determine the status of the switch, that is, whether it is in the on or off position. The blade is a part of the switch that makes or breaks the electrical connection.
What are single-throw switches?
- Single-throw switches allow the circuit to open or close by moving the switch blade into or out of only one set of contacts.
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