Allen Bradley 1492SP1C150 Supplementary Protector
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Allen Bradley 1492SP1C150 - 15A 1 Pole Supplementary Protector
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Description
Built for supplementary circuit protection, the Allen Bradley 1492SP1C150 has a 15A rating at 240VAC and 277VAC. This single-pole Series 1492 protector uses a C trip curve. It mounts on a DIN rail and has box lug terminals for 16 AWG to 4 AWG wire. Its thermal magnetic trip provides long-time and instantaneous protection. It meets UL 1077 standards and carries CE, CSA and VDE approvals.Specifications
| Brand | Allen Bradley |
|---|---|
| Part Number | 1492SP1C150 |
| Series | 1492 |
| Amperage | 15A |
| Poles | 1 |
| Mounting Style | DIN Rail |
| Voltage | 240VAC, 277VAC |
| Phase | 1 |
| Terminal Type | Box Lugs |
|---|---|
| For Use With | DIN Rail Panels, Industrial Control Panels |
| Max Wire | 4 AWG |
| Min Wire | 16 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Curve | C |
| Standards | UL 1077 |
|---|---|
| Approval | CE, CSA, VDE |
Product FAQs
8 answersWhen should I choose the Allen Bradley 1492SP1C150 for equipment protection?
This is a supplementary protector covered by UL 1077. Choose it for supplementary overcurrent protection within equipment, with required branch-circuit protection handled separately.
How should I use the 15A current rating when selecting this protector?
Use the 15A rating when coordinating protection with the intended load and conductor ampacity. The current rating is not an exact instantaneous trip threshold; operating time depends on the overload and trip characteristic.
What AC voltage ratings should I check before selecting this protector?
The protector carries 240VAC and 277VAC ratings. Match the application voltage to the applicable rating when selecting it for the circuit.
What does the C trip curve mean for loads with startup current?
A C curve allows brief inrush before the instantaneous trip operates. Consider the load's startup behavior when selecting the curve, and coordinate it with the circuit's protection requirements.
How does the thermal-magnetic trip respond to overloads and short circuits?
The thermal element provides long-time overload protection, while the magnetic element provides instantaneous operation at sufficiently high overcurrent. This combines delayed response to sustained overloads with rapid response to high-current faults.
When is the single-pole arrangement appropriate?
Choose this single-pole protector when one conductor needs supplementary overcurrent protection in a single-phase circuit. Plan the circuit around that single protected pole.
What conductor sizes can I terminate in the box lugs?
The box-lug terminals accept conductors from 16 AWG through 4 AWG. Select a conductor within that range while also checking its ampacity for the circuit.
How is this protector mounted?
It uses DIN rail mounting. Plan a DIN rail installation with working space for conductor routing and terminal access.
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