WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification |
| Poles Description | 3P (3 Poles with protected thermal-magnetic units) |
| Thermal Protection Adjustment Range | 90 A to 150 A (adjustable thermal dial) |
| Magnetic Tripping Current | 13 x I_n (Fixed instantaneous short-circuit protection) |
| Rated Operational Voltage (U_e) | 690 V AC (50/60 Hz) |
| Ultimate Breaking Capacity (I_{cu}) | 36 kA at 380/415 V AC; 10 kA at 660/690 V AC |
| Utilisation Category | Category A (IEC 60947-2) / AC-3 (IEC 60947-4-1) |
| Motor Power Ratings (400/415V) | Suitable for motors up to 75 kW / 90 kW depending on operating voltage |
| Control Type | Toggle lever handle |
| Mounting Support | Screw panel mounting / DIN rail mounting with adapter |
| Standards Compliance | IEC/EN 60947-1, IEC/EN 60947-2, IEC/EN 60947-4-1, UL 508 |
Product Introduction & Application Context
The Schneider Electric TeSys GV7-RS150 is a compact, high-performance motor circuit breaker designed to safeguard large 3-phase asynchronous motors against electrical overloads, phase loss, and short circuits. Integrating thermal-magnetic protection into a molded case breaker frame, the GV7 series bridges the gap between standard DIN-rail motor manual starters (TeSys GV2/GV3) and industrial-grade power circuit breakers (Compact NSX).
Engineered for demanding industrial processes—including heavy pumps, HVAC chillers, crushers, and conveyor systems—the GV7-RS150 provides adjustable thermal dial settings (90 A to 150 A) to match precise motor full-load currents (FLC). Replacing a tripped or damaged breaker with a genuine Schneider GV7 unit ensures precise calibration, preventing nuisance trips and protecting motor windings against catastrophic insulation damage during thermal overloads.
GV7RS150
GV7RS150
Installation & Configuration Guide
1.Pre-Installation & Safety Isolation:Perform LOTO and verify line-side de-energization.
Disconnect upstream power feeding the motor control center (MCC). Execute Lock-Out/Tag-Out (LOTO) protocols and verify zero voltage across line terminals (L1, L2, L3) using a calibrated multimeter.
2.Removal of Damaged Unit:Disconnect motor leads and unbolt mounting hardware.
Unbolt terminal lugs or flexible busbar connections from incoming and outgoing power terminals. Loosen panel retention screws and carefully remove the legacy breaker from the enclosure backplate.
3.Physical Installation & Wiring:Mount breaker and torque main power terminals.
Secure the GV7-RS150 onto the mounting backplate. Connect 3-phase line (1/L1, 3/L2, 5/L3) and load (2/T1, 4/T2, 6/T3) cables using correct hex/bolt torque values to prevent high-resistance terminal hot spots.
4.Thermal Adjustment & Commissioning:Set thermal trip dial to motor nameplate FLC.
Locate the adjustable thermal dial on the front face of the GV7-RS150. Turn the adjustment screw to match the exact Full Load Amperes (FLA/FLC) listed on the motor nameplate (between 90A and 150A). Reapply main power and switch the toggle handle to the ON position.
Accessories & Auxiliary Options
- Auxiliary Contact Blocks: Supports internal clip-in auxiliary contacts (GV7-AE11, GV7-AE20) for remote status indication (ON/OFF/TRIP).
- Shunt / Undervoltage Releases: Optional internal trip coils (GV7-AS or GV7-AU) allow emergency stop tripping or protection against low line voltages.
- Rotary Handles: Extended door-mounted rotary handles (GV7-AP01 / GV7-AP02) enable external cabinet operation with door interlocking mechanisms.
Frequently Asked Questions (FAQ)
Q: What motor horsepower/kilowatt range is the GV7-RS150 rated for?
A: At 400/415V 3-phase AC, the 150A rating typically protects electric motors rated up to approximately 75 kW to 90 kW (depending on motor efficiency and power factor).
Q: How do I adjust the overload trip setting on the GV7-RS150?
A: Use a small screwdriver to turn the dial on the front cover. Set the dial marker to match the Motor Nameplate Full Load Current (I_n) between 90A and 150A.
Q: Can the TeSys be fitted with a door rotary handle?
A: Yes. Schneider offers extended rotary handles (GV7-AP series) that allow operators to switch or reset the breaker from the outside of an IP54/IP65 panel door.
Q: What is the short-circuit breaking capacity (I_{cu}) of this model?
A: The features an ultimate short-circuit breaking capacity (I_{cu}) of 36 kA at 380/415V AC according to IEC 60947-2 standards.
