The main product Main switch EATON IS-100/4 (276285) is compared with similar modular isolation switches from EATON, such as Eaton IS-16/4, EATON IS-100/1, Eaton IS-63/4, EATON HIS-100/3, and EATON IS-20/3. All of these devices are designed for safe manual disconnection of electrical circuits during maintenance and emergency situations, but they differ in rated current and pole count, which determines their suitability for single-phase or three-phase networks of varying power.
⚙️ Below is a comparison of key characteristics, including pole count, rated current, and the application scope of the devices for distribution boards.
| Comparison parameter | Main switch EATON IS-100/4 (276285) | Eaton IS-16/4 Main Isolator Switch 16A 4-Pole | Isolation Main Switch EATON IS-100/1 (MPN 276282) | Eaton IS-63/4 Main Isolator Switch, 4-Pole, 63 A | Modular disconnector EATON HIS-100/3 3-pole 100 A (MPN 142830) | EATON IS-20/3 Main Isolator Switch 20A 2-Pole | Practical significance of differences |
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| Brand | EATON | EATON | EATON | EATON | EATON | EATON | All products are made by the same manufacturer, ensuring consistent quality and modular compatibility standards. |
| Rated current | 100 A | 16 A | 100 A | 63 A | 100 A | 20 A | 100 A models suit heavy-duty main lines, while 16–63 A versions are designed for lower loads. |
| Pole count | 4-pole | 4-pole | 1-pole | 4-pole | 3-pole | 2-pole | Determines the type of switched network: single-phase, three-phase 3-wire, or three-phase 4-wire systems. |
| Purpose | Main switch for distribution boards | Isolator for industrial and residential systems | Isolator for single-phase circuits | Isolator for distribution systems | Modular disconnector for three-phase circuits | Isolator for residential and commercial systems | Selection depends on the electrical installation scale and phase-switching requirements. |
◎ The table below evaluates how well each model matches different usage scenarios to help select the optimal option for specific tasks.
| Use case | Recommended product | Why |
|---|
| Heavy-duty three-phase main distribution boards | Main switch EATON IS-100/4 (276285) | Provides high-current switching up to 100 A in a four-pole configuration for complex systems. |
| Residential or low-power distribution lines | Eaton IS-16/4 Main Isolator Switch 16A 4-Pole or EATON IS-20/3 Main Isolator Switch 20A 2-Pole | Rated for lower currents, making them optimal for compact residential and commercial setups. |
| Single-phase networks | Isolation Main Switch EATON IS-100/1 (MPN 276282) | Single-pole execution is specifically designed for safe disconnection of a single line. |
| Medium-power three-phase networks | Eaton IS-63/4 Main Isolator Switch, 4-Pole, 63 A | Offers an intermediate current rating of 63 A while maintaining a four-pole configuration. |
Main switch EATON IS-100/4 (276285) stands out with its maximum current load of 100 A and a four-pole design compared to most alternatives. This device is recommended for large commercial, industrial, or main distribution panels where reliable disconnection of high-power three-phase lines is required. If your electrical system is designed for lower currents or requires a different pole count, alternative models from EATON will provide a more precise match for specific technical parameters.
