HNF363 - Siemens 100A 3-Pole 600V Non-Fusible Heavy Duty Safety Switch, NEMA 1

HNF363 - Siemens 100A 3-Pole 600V Non-Fusible Heavy Duty Safety Switch, NEMA 1

When you need a 100A non-fused disconnect for a 480V or 600V 3-phase system, the Siemens HNF363 is the switch that gets the job done. It is a Type VBII heavy duty safety switch - 3-pole, 3-wire, NEMA 1 indoor - rated 100 HP at 600V 3-phase. No fuse holders; if your upstream breaker or panel handles the fault protection, this drops in as the local disconnect or service entrance switch.

The HNF363 features visible blade double-break switching, defeatable dual cover interlock, and front-removable Cu/Al lugs (#14-1/0 AWG, 60/75 deg C). The handle padlocks OFF with up to three locks for LOTO. Arc chutes extend service life, and the unit is seismically qualified to the 2007 California Building Code.

Common Applications

• Motor disconnect for 480V or 600V 3-phase motors up to 100 HP
• Service entrance disconnect on grounded wye 480V or 600V feeders
• LOTO isolation point on industrial equipment and machinery
• Indoor panel or MCC disconnect where no fusible protection is needed

Key Features

• Quick-make, quick-break: Fast, positive switching action on every operation
• Visible blade, double-break: Confirm open visually; arc split at two points for faster clearing
• Defeatable dual cover interlock: Door stays closed when energized; defeatable by qualified personnel
• Front-removable lugs: Easy swap to copper body or compression connectors in the field
• Padlockable handle: Three-lock LOTO capability in the OFF position
• NEMA 1 steel enclosure: Painted steel, surface mount, for indoor dry locations

Specifications

• Part Number: HNF363
• Manufacturer: Siemens
• Series: VBII
• Current Rating: 100A
• Voltage: 240/480/600V AC; 250/600V DC
• Poles/Wires: 3-pole, 3-wire (no neutral)
• Fusing: Non-fusible
• Enclosure: NEMA 1 (Type 1, indoor), painted steel
• HP (3-phase): 40 HP @ 240VAC / 75 HP @ 480VAC / 100 HP @ 600VAC
• HP (1-phase): 15 HP @ 240VAC / 30 HP @ 480VAC / 40 HP @ 600VAC
• HP (DC): 20 HP @ 250VDC / 50 HP @ 600VDC
• Short Circuit Rating: 200 kA (Class R/J/T fuses); 10 kA (Class H or CB)
• Wire Range: #14-1/0 AWG, Cu/Al, 60/75 deg C
• Temp Range: -29 to 85 deg C
• Standards: UL 98 (File E4776), NEMA KS-1-1990, 2007 CBC seismic

Product Identification

• Country of Origin: Mexico
• Dimensions: 23.15 in H x 12.01 in W x 10.17 in D
• Weight: 19.8 lb
• GTIN: 00783643151185

FAQ

Is the HNF363 a direct replacement for older switches? Yes. It crosses to Eaton DH363UGK, GE THN3363, Square D HU363, and Westinghouse HUN363.

Does the HNF363 require fuses? No. It is non-fusible. Your upstream circuit breaker handles fault protection; this is the disconnect only.

What motor can I disconnect with the HNF363? Up to 100 HP at 600V 3-phase, 75 HP at 480V 3-phase, or 40 HP at 240V 3-phase.

Can I use aluminum wire? Yes. Lugs accept #14-1/0 AWG copper or aluminum at 60 or 75 deg C.

Does it come with a neutral? No, it is 3-wire only. If a neutral is needed, add field neutral kit HNC623.