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1SAM340000R1010 — Power circuit-breaker for trafo/generator/installation protection
Electrical & controlsPart number: 1SAM340000R1010
ABB 1SAM340000R1010 is the MS132-10T, a three-pole circuit breaker designed for primary-side control transformer protection. It provides adjustable overload protection from 6.3 to 10 A, a fixed 200 A instantaneous short-circuit setting and manual disconnect operation. The unit has screw terminals and a lockable rotary handle with ON/OFF/TRIP indication.
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Technical specifications
| Manufacturer | ABB |
|---|---|
| Part number | 1SAM340000R1010 |
| Category | Electrical & controls |
| Time-Current Characteristic Curve | Tripping characteristic - Circuit Breaker for Transformer Protection MS132-10T |
| Cut-off Current Characteristic | Cut-off Current Characteristic @ 400V - Circuit Breaker for Transformer Protection MS132-T / MS132-KT |
| Product Net Width | 45 mm |
| Product Net Height | 97.8 mm |
| Product Net Depth / Length | 86.05 mm |
| Product Net Weight | 0.265 kg |
| Rated Service Short-Circuit Breaking Capacity (I cs ) | 100 kA at 230 V AC and 400 V AC; 30 kA at 440 V AC |
| Rated Ultimate Short-Circuit Breaking Capacity (I cu ) | 100 kA at 400 V AC |
| Rated Instantaneous Short-Circuit Current Setting (I i ) | 200 A |
| Setting Range | 6.3–10 A |
| Rated Operational Voltage | 690 V AC, main circuit |
| Rated Operational Current (I e ) | 10 A |
| Rated Frequency (f) | 50/60 Hz, main circuit |
| Operating Frequency (f sw ) | 0 ... 400 Hz |
| Rated Impulse Withstand Voltage (U imp ) | Main Circuit 6 kV |
| Rated Insulation Voltage (U i ) | 690 V |
| Power Loss | at Rated Operating Conditions per Pole 0.7 ... 1.7 W |
| Number of Poles | 3 |
| Conventional Free-air Thermal Current (I th ) | Main Circuit 10 A |
| Degree of Protection | Housing IP20; main circuit screw terminals IP10 |
| Terminal Type | Screw terminals |
| Connecting Capacity Main Circuit | Flexible with Ferrule 1/2x 0.75 ... 2.5 mm² |
| Tightening Torque | Main Circuit 0.8 ... 1.2 N·m |
| Wire Stripping Length | Main Circuit 9 mm |
| Mounting Position | 1 ... 6 |
| Mounting on DIN Rail | TH35-7.5 or TH35-15, 35 mm rail to IEC 60715 |
| Minimum Mounting Distance | Electrical Conductive Board, Vertical 75 mm |
| Short-Circuit Current Rating (SCCR) | Any UL Listed Fuses or Circuit-Breakers, Tap Conductor Protection in Group Installations (480Y / 277 V AC) 65 kA |
| Published component type | Power circuit-breaker for trafo/generator/installation protection |
| Reference status | Published part reference; specification and fitment require confirmation |
| Availability | On request |
| Overload Trip Class | 10 |
Catalogue information may contain errors or be out of date. Full specifications and verified details are available on request. Confirm the part number and equipment fitment with us before ordering.
Product questions
What is ABB 1SAM340000R1010 designed to protect?
ABB identifies it as the MS132-10T, a circuit breaker designed for primary-side protection of control transformers against overload and short circuit. It can also manually connect or disconnect the transformer.
What is the overload setting range and instantaneous trip setting of the MS132-10T?
The overload setting range is 6.3–10 A and the rated operational current is 10 A. Its instantaneous short-circuit setting is fixed at 200 A to accommodate transformer inrush. Confirm the transformer’s nominal primary current is within the setting range.
What is its short-circuit breaking capacity at 400 V AC?
ABB rates the MS132-10T at 100 kA for both service breaking capacity (Ics) and ultimate breaking capacity (Icu) at 400 V AC. Ratings and backup protection requirements vary with voltage; check the circuit’s available fault current and applicable standard.
How is the MS132-10T mounted and connected?
It has screw terminals and supports 35 mm DIN rails of TH35-7.5 or TH35-15 profile. The housing is IP20, while its main circuit screw terminals are IP10. Check the panel layout and installation requirements before ordering.
Researched on:
Research information may be outdated. Confirm fitment and specifications with our team before ordering.