Square D MG24489 Supplementary Protector
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Core Specs
See full specsSquare D MG24489 - 40A 4 Pole Supplementary Protector
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Description
Built for demanding industrial environments, the Square D MG24489 provides 40A of supplementary protection across four poles. Part of the proven Multi 9 family, it safeguards internal equipment circuits where a primary UL 489 branch breaker is already installed upstream. The unit mounts securely onto standard DIN rail, making it ideal for high-density OEM control panels. Featuring a C-curve thermal-magnetic mechanism, it trips between 7 and 10 times the rated current for moderate inrush loads.Specifications
| Brand | Square D |
|---|---|
| Part Number | MG24489 |
| Series | Multi 9 |
| Amperage | 40A |
| Poles | 4 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 480Y/277VAC, 415VAC, 440VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC, 5kA @ 480Y/277VAC, 10kA @ 415VAC, 6kA @ 440VAC |
| Frame Type | MG |
|---|---|
| Terminal Type | Screw/Clamp Terminal |
| For Use With | DIN Rail Panels, OEM Control Panels |
| Wire Gauge | 14-2 AWG |
| Max Wire | 2 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | C |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No 235, EN/IEC 60947-2, GB 14048.2, UL 1077 |
| Approval | CCC, CE, CSA, IEC, UR |
| Temp Rating | -30C to 70C |
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