Official DistributorSKU
MPN
TMC 71B 12A
Weight
0.222 kg
Series TMC
TMC 71B 12A - Thermomagnetic device circuit breaker
Thermomagnetic device circuit breaker, number of positions: 1, cross section: 1 mm2- 35 mm2, AWG: 18 - 2, mounting type: DIN rail: 35 mm
TMC
The Phoenix Contact TMC Series comprises thermomagnetic circuit breakers designed to provide reliable overcurrent protection in various industrial applications. This series includes two main product lines:
TMC 7 Series: UL 1077 Recognized supplemental protectors.
TMC 8 Series: UL 489 Listed circuit breakers.
Key Features:
Trip-Free Design: Ensures that the breaker will trip during an overcurrent event, even if the actuator is held in the ""ON"" position, enhancing safety.
Snap-Action Mechanism: Provides a rapid switching action, reducing contact wear and extending the lifespan of the breaker.
Multi-Pole Options: Available in 1-, 2-, and 3-pole configurations to accommodate various application requirements.
Trip Curves: Offers B, C, and D trip characteristics to match different load conditions and ensure appropriate protection levels.
Technical Specifications
Product properties
| Product family | TMC 7 |
| Type | DIN rail module, one-piece |
| Number of Positions | 1 |
| Mechanical service life | 20000 |
Electrical properties
| Service life electrical | 6000 |
General
| Operating Voltage | 277 V AC |
| Operating Voltage | 60 V DC |
| Rated current IN | 12 A |
| Tripping method | TM (thermomagnetic) |
| Rated short-circuit switching capacity Icn | 7.5 kA (240 V AC/ 60 V DC) |
| Rated short-circuit switching capacity Icn | 5 kA (277 V AC) |
| Fuse | B (curve) |
Connection data
| Conductor cross section rigid | 1 mm² ... 35 mm² |
| Cross section AWG | 18 ... 2 (converted acc. to IEC) |
| Conductor cross section flexible | 1 mm² ... 35 mm² |
| Connection Method | Screw connection |
| Tightening torque, min | 2 Nm |
| Stripping length | 11 mm ... 12 mm |
| Conductor cross section flexible max. | 35 mm² |
| Conductor cross section, rigid max. | 35 mm² |
Dimensions
| Width | 17.6 mm |
| Height | 84.3 mm |
| Depth | 75.9 mm (incl. DIN rail 7.5 mm) |
Material specifications
| Color | light grey (RAL 7035) |
| Color | light grey (RAL 7035) |
Ambient conditions
| Degree of Protection | IP20 |
| Ambient Temperature (Operation) | -35 °C ... 70 °C |
| Humidity test | 48 h, 95% RH, 40°C (IEC 60068-2-78) |
| Shock (operation) | 30g (11 ms) (IEC 60068-2-11, test Ea) |
| Vibration (Operation) | ±0.38 mm (10-57 Hz), 5g (57...500 Hz) (Sinusoidal test to IEC 60068-2-6, Test Fc. 10 frequency cycles per axis) |
Standards and Regulations
| Standards/specifications | UL 1077 |
| Standards/specifications | IEC 60947-2 |
Mounting
| Mounting Type | DIN rail: 35 mm |
Accessories
TMC 7 B1 80 57 C - Bus bar for TMC 71... circuit breakers (single phase) 17.8 mm pitch, up to 57 positions. Rated for 80 A (end feed) 600 V AC/1000 V DC. UL508 Listed for connection of UL1077 rated circuit breakers.
Why Proax for Phoenix Contact 1019917?
Proax is an authorized distributor of Phoenix Contact 1019917 and one of Phoenix Contact's largest distributors in North America. Our highly skilled in-house technical team is ready to assist with any technical needs.
Have a question in mind? to help you get the right product as quickly as possible for your project. We're always here to help!
Short Lead Time
Highly Trained Staff
Live Chat
Technical Support
Local Inventory
60+ Years Experience
Additional Information
| Pack Size | 1 |
Recommended
