MS132-2.5T
By ABB
ABBMS1322:5T
Official DistributorThe circuit breaker for transformer protection MS132-2.5T is a compact 45 mm width device designed to protect control transformers on the primary side. This device has a rated operational current of Ie = 2.5 A. It allows fuse-less protection against overload and short-circuit. The short-circuit current setting is fixed to 20 times the rated operational current to handle the high inrush current generated by transformers. The device allows manually connect and disconnect the transformer from the mains thanks of its built-in disconnection function. The circuit breaker for transformer protection offers a rated service short-circuit breaking capacity of Ics = 100 kA at 400 VAC and a trip class 10. Further features are temperature compensation, trip-free mechanism, rotary handle with a clear switch position indication and short circuit trip indicator. The handle is lockable to protect against unauthorized changes. Auxiliary contacts, signalling contacts, undervoltage releases, shunt trips, power in-feed blocks and terminal spacers are available as accessory.
Technical Specifications
Dimensions
| Product Net Width | 45 mm |
| Product Net Height | 90 mm |
| Product Net Depth / Length | 86.75 mm |
| Product Net Weight | 0.265 kg |
Technical
| Rated Service Short-Circuit Breaking Capacity (Ics) | (230 V AC) 100 kA, (400 V AC) 100 kA |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | (400 V AC) 100 kA |
| Rated Instantaneous Short-Circuit Current Setting (Ii) | 50 A |
| Setting range | 1.6 ... 2.5 A |
| Rated Operational Voltage | Main Circuit 690 V AC |
| Rated Operational Current (Ie) | 2.5 A |
| Rated Frequency (f) | Main Circuit 50 Hz, Main Circuit 60 Hz |
| Rated Impulse Withstand Voltage (Uimp) | Main Circuit 6 kV |
| Rated Insulation Voltage (Ui) | 690 V |
| Power Loss | at Rated Operating Conditions per Pole 0.6 ... 1.6 W |
| Number of Poles | 3 |
| Conventional Free-air Thermal Current (Ith) | Main Circuit 2.5 A |
| Degree of Protection | Housing IP20, Main Circuit Terminals IP10 |
| Pollution degree | 3 |
| Electrical Durability | 50000 cycle |
| Mechanical Durability | 100000 cycle |
| Terminal Type | Screw Terminals |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm², Flexible with Insulated Ferrule 1/2x 0.75 ... 2.5 mm², Flexible 1/2x 0.75 ... 2.5 mm², Rigid 1/2x 1 ... 4 mm² |
| Tightening torque | Main Circuit 0.8 ... 1.2 N·m |
| Wire Stripping Length | Main Circuit 9 mm |
| Recommended Screw Driver | Pozidriv 2, M3.5 |
| Mounting Position | 1 ... 6 |
| Mounting on DIN Rail | TH35-15 (35 x 15 mm Mounting Rail) acc. to IEC 60715, TH35-7.5 (35 x 7.5 mm Mounting Rail) acc. to IEC 60715 |
| Minimum Mounting Distance | Electrical Conductive Board, Vertical 75 mm, Other Device Same Type, Horizontal 9 mm, Other Device Same Type, Vertical 150 mm |
| Actuator Type | Rotary Handle |
| Contact Position Indication | ON / OFF / TRIP |
| Standards | IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1 |
Technical UL/CSA
| Short-circuit current rating (SCCR) | Any UL Listed Fuses or Circuit-Breakers, Tap Conductor Protection in Group Installations (480Y / 277 V AC) 65 kA, Any UL Listed Fuses or Circuit-Breakers, Tap Conductor Protection in Group Installations (600Y / 347 V AC) 47 kA |
| Maximum Operating Voltage UL/CSA | Main Circuit 600 V AC |
| Horsepower Rating UL/CSA | (220 ... 240 V AC) Single Phase 0.17 Hp |
| Full Load Amps Motor Use | (120 V AC) Single Phase 2.5 A, (220 ... 240 V AC) Single Phase 2.5 A |
| Locked Rotor Amps | (120 V AC) Single Phase 15 A, (220 ... 240 V AC) Single Phase 15 A |
| Connecting Capacity Main Circuit UL/CSA | Flexible 1/2x 16-12 AWG, Stranded 1/2x 16-12 AWG |
| Tightening Torque UL/CSA | Main Circuit 10 ... 12 in·lb |
Environmental
| Ambient Air Temperature | Around the Enclosure 0 ... +40 °C, Operation -25 ... +70 °C, Operation Compensated -25 ... +60 °C, Storage -50 ... +80 °C |
| Ambient Air Temperature Compensation | Yes |
| Maximum Operating Altitude Permissible | 2000 m |
| Resistance to Shock acc. to IEC 60068-2-27 | 11 ms Pulse 25g |
| Resistance to Vibrations acc. to IEC 60068-2-6 | 5g / 3 ... 150 Hz |
| RoHS Status | Following EU Directive 2011/65/EU and Amendment 2015/863 July 22, 2019 |
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