
WSRD33542N4WSD Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $598.00 | Top Pick! Condition is New, (NEW) Appleton 30 Amp 3 Pole Non-Fused Safety Switch WSRD33542N4WSD Nema 4x , shipping cost = $90.82 | 100.0% |
![]() | $698.00 | Condition is New, NEW- Appleton 30 Amp Interlock 3 Pole Non-Fused Switch WSRD33542N4WSD Nema 4x , shipping cost = $90.82 | 100.0% |

Introducing the Appleton WSRD33542N4 Interlock Pole Non-Fused Safety Switch, a reliable and safe solution for your electrical applications requiring interlocking functionality. This switch, rated for a NEMA 4X environment, is designed to withstand harsh conditions, making it an ideal choice for outdoor installations or areas with high humidity and moisture.
The Appleton WSRD33542N4 is a 30 Amp switch, capable of handling moderate to heavy electrical loads. It features a non-fused design, which means it doesn't have an internal overload or short-circuit protection. However, it is intended to be used as part of a larger protective system, such as a circuit breaker or fuse panel, to ensure the safety of your electrical circuit.
One of the most notable features of this switch is its interlocking functionality. Interlocking refers to a mechanical or electrical connection between two or more devices that ensures they cannot be operated independently, enhancing safety and preventing potential accidents. This switch can be wired to interlock with other apparatus, such as a motor starter or a disconnect switch, to ensure that they cannot be energized simultaneously.
The Appleton WSRD33542N4 is constructed of durable materials, including a brass base and corrosion-resistant bronze contacts. It is also designed to be easy to install, with a mounting pattern that conforms to the NEC (National Electrical Code) requirements for 30 Amp switches. The switch comes with a clear, tamper-evident cover that protects against accidental operation and provides a visible indication of its status.
In summary, the Appleton WSRD33542N4 Interlock Pole Non-Fused Safety Switch is a versatile and robust electrical component designed for use in demanding applications. Its NEMA 4X rating, 30 Amp capacity, and interlocking functionality make it a valuable addition to your electrical system, ensuring safety, reliability, and compliance with industry standards.
Pros and Cons of Buying Appleton WS33542N4WSD 30 Interlock Pole Non-Fused Safety Switch Nema 4x 30 Amp Interlock
1. Pros:a. Safety: This interlock switch is designed to ensure safety by preventing the operation of two circuits or machines at the same time, thus reducing the risk of electrical hazards.
b. Durability: The NEMA 4X rating makes this switch suitable for indoor or outdoor use, ensuring it can withstand harsh environments and extreme temperatures.
c. Easy Installation: The interlock feature allows for easy installation and wiring, making it a convenient choice for electrical projects.
d. High Current Capacity: With a 30 amp current rating, this switch can handle a considerable load, making it suitable for various industrial applications.
2. Cons:a. Cost: Compared to regular switches, interlock switches tend to be more expensive due to their added safety features and functionality.
b. Complexity: Installing and configuring interlock switches can be more complex than standard switches, requiring additional wiring and setup.
Ending Conclusion:The Appleton WS33542N4WSD 30 Interlock Pole Non-Fused Safety Switch Nema 4x 30 Amp Interlock is a valuable investment for applications that require increased safety and reliability. Its NEMA 4X rating, easy installation, and high current capacity make it a versatile and durable choice for various industrial projects. However, its relatively higher cost and complexity may deter some users, particularly for smaller-scale applications.
Recommendation:If safety is a priority in your electrical project, and you're dealing with high current loads or complex machinery, the Appleton WS33542N4WSD 30 Interlock Pole Non-Fused Safety Switch Nema 4x 30 Amp Interlock is a recommended choice. Its features and benefits outweigh the additional cost and complexity, ensuring the safety and reliability of your electrical system.
Details:
Includes instruction book. Fuse provision: non-fused. Appleton WSRD33542N4WSD is a 30 amp, 4-pole, 3-wire non-fused interlocked receptacle with stainless steel enclosure and viewing window. Features: mechanical interlock: prohibits plug insertion or removal under load, which prevents electrical arcing.
Enclosure material: stainless steel. Receptacle material: epoxy powder coated copper-free aluminum. voltage rating: 600 vac, 250 CDC. Product specifications: amperage rating: 30.
It is designed for heavy-duty industrial applications in harsh, corrosive environments. Number of poles: 4. Viewing window: allows for visual inspection of the switch position. Pad lockable: the operating handle can be locked in the off or on position, and cover padlocked closed.
Twist on water proof cap and flip.
specifications indusswitch:
- brand: Appleton
- mpn: Wsrd33542n4wsd
- part type: Pole Switch Amp
- mounting style: Bolt-on, Surface, Wall
- color: Stainless Steel
- fuse type: Non-fused
- switch style: Toggle/joystick
- suitable for: Exterior, Interior, Wall
- port type: Power
- current type: Ac/dc
- resistance properties: Corrosion Resistant, Dustproof, Dust Resistant, Moisture Resistant, Rustproof, Rust Resistant, Waterproof, Water Resistant, Weatherproof, Weather Resistant
- application: Commercial, Conveyance Lines, Electrical Wiring, Industrial, Large Appliances, Outlet
- protection properties: Safety Circuit Protection
general indusswitch:
- category: Business & Industrial > Electrical Equipment Supplies > Switches > Accessories
offer indusswitch:
- availability: in stock
- options: ship-to-home
- best offers: true
- in stock #: 2
- prices: $598.00–$698.00
- item condition: New
- started: november 30, 2025
- sold #: 19
seller indusswitch:
- city: dallas, texas
- rating: 100.0%
- # reviews: 65
payments indusswitch:
- wallet: apple-pay
- credit card: mastercard
- other
shipping indusswitch:
- type: calculated
- class: standard, one-day, expedited
- transit: 4-10 days
- carrier: ups
- service: ups ground, ups next day air, ups next day air saver, ups 2nd day air
returns indusswitch:
- policy: no returns
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