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To ensure accuracy, please note that images may be representative. Refer to the product data sheet for detailed specifications.
| Manufacturer | IDEC |
| Manufacturer Product Number | NRAS2121-1A-AA |
| Description | Magnetic-Hydraulic Breaker; 1A; 2-Pole; AA (AC, General Purpose) |
| Datasheet | Download Datasheet |
The IDEC NRAS2121-1A-AA is a 2-pole 1 A magnetic-hydraulic circuit protector with a lever actuator for a round panel cutout, rated 250V AC, 50/60 Hz and 65V DC. It is a UL 1077 supplementary protector, not for branch circuit protection.
It has IDEC's AA time-delay curve, the general-purpose curve common to molded-case breakers. An SPDT alarm contact changes state on trip only. All poles trip together and the levers are mechanically tied. The trip current does not drift with temperature; only the delay does.
Trip times at 25 °C: No trip at 100%; 10-120 s at 125%; 6-45 s at 150%; 2.2-15 s at 200%; 0.3-2 s at 400%. Interrupting rating: 1,000 A at 250V AC; 1,000 A at 65V DC. Auxiliary contact rating: SPDT microswitch: 250V AC 5 A, 50V DC 1 A (resistive). Terminals: main: 0.250 in quick-connect tab (NRT screw terminal adapter available). Life: 10,000 operations minimum. It operates from -40 to +85 °C. Approvals: UL Recognized (UL 1077), cUL, VDE (EN 60934); UL file E68029.
| Category | |
| Manufacturer | IDEC |
| Model | NRAS |
| Current Rating (A) | 1 |
| Number of Poles | 2-Pole |
| Voltage Rating - AC | 250V AC, 50/60 Hz |
| Voltage Rating - DC | 65V DC |
| Interrupting Rating | 1,000 A at 250V AC; 1,000 A at 65V DC |
| Trip Curve | AA (AC, General Purpose) |
| Trip Characteristics | No trip at 100%; 10-120 s at 125%; 6-45 s at 150%; 2.2-15 s at 200%; 0.3-2 s at 400% (25 °C) |
| Inertia Delay | No |
| Internal Circuit | Series current trip |
| Auxiliary Contact | SPDT Alarm |
| Auxiliary Contact Rating | SPDT microswitch: 250V AC 5 A, 50V DC 1 A (resistive) |
| Actuator Type | Lever (round panel cutout) |
| Mounting Type | Panel Mount |
| Termination Style | Quick Connect, 0.250 in |
| Terminal Type | Main: 0.250 in quick-connect tab (NRT screw terminal adapter available) |
| Electrical Life (cycles) | 10,000 |
| Operating Temperature (°C) | -40...+85 |
| Approvals | UL Recognized (UL 1077), cUL, VDE (EN 60934) (E68029) |
| Standards | UL 1077, EN 60934 |