Allen-Bradley 1492-SPM1C040 SER. D 1-Pole Circuit Breaker 277VAC 48VDC 4Amp

Allen‑Bradley 1492‑SPM1C040 Ser. D is a compact, single‑pole supplementary miniature circuit breaker with a C‑curve trip characteristic, rated for 4 A at 240 V. Manufactured in Bulgaria. Technical specifications: • Part number: 1492‑SPM1C040, Series D • Product type: Miniature Supplementary Protector (MCB) • Trip curve: C (5–10 × In instantaneous trip) • Poles: 1 pole • Rated current: 4 A @ 30 °C and 40 °C • Rated operational voltage: – AC: up to 277 V (230 V nominal) – DC: 48 V • Rated frequency: 50/60 Hz • Rated ultimate short‑circuit breaking capacity (Icu): – AC 220/240 V: 15 kA – DC ≤ 60 V: 15 kA • Rated service short‑circuit breaking capacity (Ics): 75% of Icu (≈11.25 kA) per IEC 60947 • Electrical endurance (AC): up to 20,000 operations • Mechanical endurance: 20,000 operations • Impulse withstand voltage: 4 kV • Dielectric strength: 2 kV, 50/60 Hz for 1 min • Housing rating: IP20 externally, IP40 with cover • Flammability: UL94 V‑2 • Mounting: DIN‑35 rail • Terminal types: Dual screw terminals, bus‑bar compatible • Conductor capacity (max): – Top/bottom rigid cable: 35 mm² – Top/bottom flexible cable: 25 mm² • Wire range (AWG): 18–4 • Tightening torque: 2.8 N·m (≈17.7 in‑lb for AWG 14–10) • Dimensions: Height 74 mm, Width 17.5 mm, Depth 88 mm • Weight: ~0.115 kg • Operating temperature: –25 °C to +55 °C; Storage: –40 °C to +70 °C • Relative humidity: Up to 96% UH • Shock resistance: 25 g, 13 ms • Vibration resistance: 5 m/s², 150 Hz • Standards: UL 1077, EN 60947‑2, IEC 60947, CSA, CE, CCC, VDE, RoHS compliant • Indicator window: Red = ON, Green = OFF • Accessories: Auxiliary contacts, shunt trip, padlockable device • Manufacturer country of origin: Bulgaria Please review pictures carefully and let us know if you have any questions!