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H227NR
The Schneider Electric H227NR, part of the Square D series, is a heavy-duty fusible safety switch engineered to manage electrical loads effectively. Rated for up to 800 A, this device operates at a voltage of 240 VAC or 250 VDC and is suitable for high-power applications, supporting motors up to 50 HP.
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Technical specifications for H227NR
| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Heavy duty fusible safety switch |
| Product Line | Square D |
| Part Number | H227NR |
| UPC | 785901823056 |
| Weight | 344.00 lbs (156.04 kg) |
| Current Rating | 800 A |
| Voltage Rating | 240 VAC / 250 VDC |
| Number of Poles | 2 |
| Enclosure Rating | NEMA 3R (rainproof) |
| Motor Power | 50 HP at 240 VAC / 250 VDC |
| Wire Configuration | 3-wire |
| Wire Size | 3/0 AWG to 750 kcmil (copper or aluminum) |
| Tightening Torque | 375 lbf.in (42.4 N.m) |
| Short-Circuit Current | 200 kA maximum |
| Fuse Type | L (time delay) |
| Mounting Type | Surface |
| Electrical Connection | Lugs |
| UL Listing | E2875 |
The H227NR heavy-duty fusible safety switch from Schneider Electric's Square D series is designed for demanding electrical applications. This switch boasts an impressive current capacity of 800 A and can operate at a maximum voltage of 240 V AC or 250 V DC. It is suitable for motor applications, rated for up to 50 HP, which makes it versatile for various industrial tasks.
In terms of its physical configuration, the H227NR has a two-pole layout. Its robust enclosure has a NEMA 3R rating, providing rainproof protection that enhances its resilience in outdoor settings. The switch supports a three-wire configuration, enabling it to seamlessly integrate into various system setups. Additionally, it accepts wire sizes ranging from 3/0 AWG to 750 kcmil in both copper and aluminum forms, facilitating flexibility during installation.
The tightening torque for connections is specified at 375 lbf.in (42.4 N.m), which is crucial for ensuring a secure fit. This model is designed for surface mounting and connects through lugs for convenient electrical connections. With a short-circuit current rating of up to 200 kA, the switch can withstand potential fault currents, thereby enhancing safety during operation. The included L-type fuses are time delay, allowing for a momentary surge while protecting against prolonged overcurrent conditions. Finally, the H227NR is UL listed under E2875, confirming its compliance with recognized safety standards.