Nec Ocpd Ratings: 430.52(C)(1)
non time delay fuse ac squirrel cage other 300A to nontime delay fuse 2017 squirrel cage other than design b 300pct
NEC overcurrent protective device (OCPD) ratings — standard ampere ratings for fuses and circuit breakers per Section 240.6(A), motor branch circuit protection per 430.52(C)(1), overload relay sizing per 430.32, and transformer OCPD sizing per 450.3
| nec section | record id | description | device type | max percent of flc | motor type | nec table | rating amp (A) | standard |
|---|---|---|---|---|---|---|---|---|
| 430.52(C)(1) | non time delay fuse ac squirrel cage other 300A | Maximum OCPD for motor branch circuit — % of motor FLC | non time delay fuse | — | ac squirrel cage other | — | 300 | NEC (NFPA 70) Table 430.52(C)(1) |
| 430.52(C)(1) | non time delay fuse dc constant voltage 150A | Maximum OCPD for motor branch circuit — % of motor FLC | non time delay fuse | — | dc constant voltage | — | 150 | NEC (NFPA 70) Table 430.52(C)(1) |
| 430.52(C)(1) | non time delay fuse single phase 300A | Maximum OCPD for motor branch circuit — % of motor FLC | non time delay fuse | — | single phase | — | 300 | NEC (NFPA 70) Table 430.52(C)(1) |
| 430.52(C)(1) | non time delay fuse synchronous 300A | Maximum OCPD for motor branch circuit — % of motor FLC | non time delay fuse | — | synchronous | — | 300 | NEC (NFPA 70) Table 430.52(C)(1) |
| 430.52(C)(1) | non time delay fuse wound rotor 150A | Maximum OCPD for motor branch circuit — % of motor FLC | non time delay fuse | — | wound rotor | — | 150 | NEC (NFPA 70) Table 430.52(C)(1) |
| 430.52(C)(1) | nontime delay fuse 2017 ac polyphase other than wound rotor 300pct | Motor branch-circuit protection: non-time-delay fuse for AC polyphase motors other than wound-rotor — max 300% of full-load current | nontime delay fuse | 300 | AC polyphase motors other than wound-rotor | 430.52 | — | NEC (NFPA 70) 2017 Edition Table 430.52 |
| 430.52(C)(1) | nontime delay fuse 2017 dc constant voltage 150pct | Motor branch-circuit protection: non-time-delay fuse for DC (constant voltage) — max 150% of full-load current | nontime delay fuse | 150 | DC (constant voltage) | 430.52 | — | NEC (NFPA 70) 2017 Edition Table 430.52 |
| 430.52(C)(1) | nontime delay fuse 2017 design b energy efficient 300pct | Motor branch-circuit protection: non-time-delay fuse for Design B energy-efficient — max 300% of full-load current | nontime delay fuse | 300 | Design B energy-efficient | 430.52 | — | NEC (NFPA 70) 2017 Edition Table 430.52 |
| 430.52(C)(1) | nontime delay fuse 2017 single phase 300pct | Motor branch-circuit protection: non-time-delay fuse for Single-phase motors — max 300% of full-load current | nontime delay fuse | 300 | Single-phase motors | 430.52 | — | NEC (NFPA 70) 2017 Edition Table 430.52 |
| 430.52(C)(1) | nontime delay fuse 2017 squirrel cage other than design b 300pct | Motor branch-circuit protection: non-time-delay fuse for Squirrel cage - other than Design B energy-efficient — max 300% of full-load current | nontime delay fuse | 300 | Squirrel cage - other than Design B energy-efficient | 430.52 | — | NEC (NFPA 70) 2017 Edition Table 430.52 |
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