OMM7-320 New Energy High Voltage Circuit Breaker

OOHMAGE OMM7-320 New Energy High-Voltage MCCB

Engineered for high-energy AC distribution up to 1,140 V, the OOHMAGE OMM7-320 New Energy High-Voltage Circuit Breaker combines compact form, high breaking capacity, and “zero-arc” switching architecture. Its thermomagnetic trip with selectable instantaneous release (5 In / 10 In) and modular internal accessories make it a robust choice for renewables, heavy industry, mining, and traction auxiliaries—especially where heat, altitude, and tight panels challenge ordinary mccb designs.

Why it stands out

• High breaking capacity across high voltages: up to Icu/Ics 100/100 kA @ 380/415 V (H code); 65/65 kA @ 690 V, 50/50 kA @ 800 V, 30/30 kA @ 1,000 V, 20/20 kA @ 1,140 V—stable protection for large feeders where mccb 3 phase is the norm.
• No capacity derating at +50 °C: thermal design keeps the trip unit within calibration without upsizing.
• Zero-arc switching path: optimized arc-chute and blow-out geometry reduce arc exposure at opening—safer for dense busbar chambers.
• Modular accessories: plug-in internal modules (shunt/UVT/aux) and external handles simplify setting mccb, interlocks, and maintenance.
• Insulation & surge margin: Ui 1,200 V, Uimp 12 kV, PF withstand 3.5 kV/1 min—built for harsh transients.
• Compact envelope: short arc distance (50–100 mm frame-dependent) enables smaller enclosures and lower heat-load.

Ratings by frame (3-pole)

• OMM7-320 (16–320 A)
  • Voltages: AC 380/415, 690, 800, 1,000, 1,140 V
  • Breaking capacity (Icu/Ics, kA):
    • H: 100/100 (415 V); 65/65 (690 V); 50/50 (800 V); 30/30 (1,000 V); 20/20 (1,140 V)
    • M: — / 60/60 (690 V); 50/50 (800 V); 20/20 (1,000 V); 12/12 (1,140 V)
  • Life: Mech 15,000; Elec 5,000 / 3,000 / 1,000 (by voltage)
  • Size (W×L×H, mm): 120×200×103; Arc distance 50 mm
• OMM7-630 (225–630 A)
  • Icu/Ics up to 65/65 kA @ 690 V, 50/50 kA @ 800 V, 30/30 kA @ 1,000 V, 20/20 kA @ 1,140 V
  • Life: Mech 15,000; Elec 5,000 / 3,000 / 1,000
  • Size: 158×325×177 mm; Arc distance 100 mm
• OMM7-1250 (800–1250 A)
  • Icu/Ics (H): 50/50 kA @ 800 V, 30/30 kA @ 1,000 V, 20/20 kA @ 1,140 V
  • Life: Mech 15,000; Elec 5,000 / 3,000 / 1,000
  • Size: 210×340×244 mm; Arc distance 100 mm

Application guidance (fungsi mccb)

• Utility & renewable switchboards: 690–1,000 V collectors, string-inverter mains, battery energy storage feeders.
• Industrial drives & mining: 690–800 V motors, hoists, crushers; high Icu with compact footprint.
• Transport & marine auxiliaries: high-voltage auxiliaries where mccb 400a and above are common, plus elevated ambient operation.

Protection & settings

• Trip unit: thermomagnetic, instantaneous 5 In / 10 In selection per frame.
• Coordination: high Ics/Icu parity simplifies Type-2 coordination and downstream selectivity.
• Accessories: shunt trip, undervoltage release, auxiliary/alarm contacts, motor operator, rotary handle kits—streamlined for panel retrofits and compliant setting mccb procedures.

OOHMAGE value for buyers (harga mccb context)

Selecting by Icu/Ics at your operating voltage (not just ampere size) delivers the best cost-to-risk outcome. OMM7’s no-derate at +50 °C and modular options reduce oversizing, installation space, and lifecycle cost—key considerations for procurement teams comparing harga mccb across suppliers.

Technical Specifications

Why Choose OOHMAGE

Specify OOHMAGE OMM7-320 High-Voltage MCCB for compact, zero-arc, high-Icu protection up to 1,140 V.
Ask for a project quote and coordination sheet (single-line + accessory BOM) to match frame, breaking capacity, and ambient conditions to your switchboard standard.

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