Trina Solar TSM-720NEG21C.20
Official manufacturer GLOBAL verified Sept. 3, 2026
Unresolved safety-relevant conflict
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Two sources give different figures for a value on this product and nobody has resolved it. The specifications below are shown as recorded, but this product must not be treated as verified for engineering purposes until the conflict is closed.
Trina Solar global Vertex N TSM-NEG21C.20 series page; file name encodes tsm-neg21c-20. Opened directly and inspected: large-format bifacial dual-glass module, silver frame. This is the NEG21C.20 SERIES render (file name carries the current 760 W top bin); the 720 W bin is the same physical module.
Identity
| category | pv_modules |
| generation | N-type i-TOPCon Ultra |
| manufacturer | Trina Solar |
| market_version | 1500 V DC (IEC); 1500 V DC (UL) |
| model | TSM-720NEG21C.20 |
| mpn | UNKNOWN |
| product_family | Vertex N TSM-NEG21C.20 715-740W |
| product_status | active |
| region | GLOBAL |
| release_year | UNKNOWN |
| series | Vertex N |
| sku | UNKNOWN |
Electrical
| application_class | UNKNOWN |
| bifacial | True |
| bifaciality_factor_pct | 80 |
| cell_technology | N-type TOPCon monocrystalline, 132 cells, bifacial dual-glass (Vertex N) disputed |
| connector_type | MC4 EVO2 / TS4 Plus / TS4 |
| dimensions_mm | 2384x1303x33 |
| extra | {'power_bins_w': [715, 720, 725, 730, 735, 740], 'power_bin_table': [{'pmax_w': 715, 'model': 'TSM-715NEG21C.20', 'voc_v': 49.2, 'vmp_v': 41.1, 'isc_a': 18.44, 'imp_a': 17.4, 'efficiency_pct': 23.0}, {'pmax_w': 720, 'model': 'TSM-720NEG21C.20', 'voc_v': 49.4, 'vmp_v': 41.3, 'isc_a': 18.49, 'imp_a': 17.44, 'efficiency_pct': 23.2}, {'pmax_w': 725, 'model': 'TSM-725NEG21C.20', 'voc_v': 49.6, 'vmp_v': 41.5, 'isc_a': 18.54, 'imp_a': 17.47, 'efficiency_pct': 23.3}, {'pmax_w': 730, 'model': 'TSM-730NEG21C.20', 'voc_v': 49.9, 'vmp_v': 41.7, 'isc_a': 18.58, 'imp_a': 17.51, 'efficiency_pct': 23.5}, {'pmax_w': 735, 'model': 'TSM-735NEG21C.20', 'voc_v': 50.1, 'vmp_v': 41.9, 'isc_a': 18.62, 'imp_a': 17.55, 'efficiency_pct': 23.7}, {'pmax_w': 740, 'model': 'TSM-740NEG21C.20', 'voc_v': 50.3, 'vmp_v': 42.1, 'isc_a': 18.66, 'imp_a': 17.58, 'efficiency_pct': 23.8}], 'cell_count': '132 cells', 'cell_layout': 'UNKNOWN', 'fire_type': 'UNKNOWN', 'bifacial_gain_note': 'Datasheet prints a BNPI column group at front 1000 W/m2 / rear 135 W/m2, and 5% & 10% backside power gain scenarios. Bin-level BNPI values not transcribed.'} |
| imp_a | 17.4 disputed |
| isc_a | 18.44 disputed |
| max_reverse_current_a | UNKNOWN |
| max_series_fuse_rating_a | 35 |
| max_system_voltage_label | 1500V DC (IEC); 1500V DC (UL) |
| max_system_voltage_v | 1500 |
| module_efficiency_pct | 23.2 |
| nmot | {'pmax_w': 'UNKNOWN', 'voc_v': 'UNKNOWN', 'vmp_v': 'UNKNOWN', 'isc_a': 'UNKNOWN', 'imp_a': 'UNKNOWN', 'conditions': 'NOCT: Irradiance at 800W/m2, Ambient Temperature 20 degC, Wind Speed 1m/s', 'note': "The datasheet prints a combined 'STC & NOCT & BNPI' table. Two independent extraction passes of the NOCT column group returned values inconsistent with each other (one pass returned the BNPI / rear-side-gain column group instead). No NOCT bin values are recorded rather than risk a wrong or cross-column value. NOCT temperature 43 degC (+/-2 degC) and the NOCT test conditions WERE read reliably and are recorded."} |
| nmot_c | 43 |
| pmax_w | 720 |
| power_tolerance | 0~+5W |
| protection_class | UNKNOWN |
| rated_power_w | 720 |
| stc_conditions | STC: 1000 W/m2, AM1.5, 25 degC (datasheet states Irradiance 1000W/m2, Cell Temperature 25 degC, Air Mass AM1.5) |
| temp_coeff_isc | 0.04 %/degC |
| temp_coeff_isc_pct_per_c | 0.04 |
| temp_coeff_pmax | -0.29 %/degC |
| temp_coeff_pmax_pct_per_c | -0.29 |
| temp_coeff_voc | -0.24 %/degC |
| temp_coeff_voc_pct_per_c | -0.24 |
| vmp_v | 41.1 disputed |
| voc_v | 49.2 disputed |
| weight_kg | 38.3 |
Physical / mechanical
| backsheet | not applicable (dual glass) |
| bypass_diodes | UNKNOWN |
| cable_cross_section_mm2 | 4.0 |
| cable_length_mm | Portrait: 370/230 mm (14.57/9.06 inches); Length can be customized |
| connector_type | TS4 / TS4 Plus / MC4 EVO2 |
| depth_mm | 33 |
| dimensions_mm | 2384x1303x33 |
| frame | 33mm (1.30 inches) Anodized Aluminium Alloy |
| frame_colour | UNKNOWN |
| glass | Front: 2.0 mm (0.08 inches), AR Coating Heat Strengthened Glass; Back: 2.0 mm (0.08 inches), Heat Strengthened Glass |
| glass_construction | dual glass |
| glass_thickness_mm | 2.0 |
| junction_box | IP 68 rated |
| length_mm | 2384 |
| weight_kg | 38.3 |
| width_mm | 1303 |
Installation
| bolt_torque | M8 bolt + 2 flat washers + spring washer + nut, 16-20 N.m (manual p.15); tracker M6 bolt 16-20 N.m (pp.22-23) |
| cable_min_bend_radius_mm | 43 |
| clamp_requirements | clamp overlap on the frame 8-12 mm; clamp length >= 50 mm, thickness >= 4 mm (manual pp.17-21) disputed |
| design_load_note | DE21 series (the 2384x1303 Vertex N format): uplift load <= 2400 Pa, downforce load <= 5400 Pa; mechanical loads = design loads x 1.5 safety coefficient (manual pp.15,17) |
| grounding | star washer penetrating the anodized frame coating, torque 3-7 N.m; grounding wire 4-16 mm2 solid bare copper; resistance < 1 ohm (manual p.23) disputed |
| installation_temperature_range_c | -20 to +50 ambient, limits -40 to +85 (manual p.3) |
| max_installation_altitude_m | 2000 |
| minimum_clearance_to_surface_mm | 155 |
| minimum_tilt_deg | 10 |
| mounting_hole | 4 x phi 9 x 14 mm mounting holes in the frame (manual p.15) |
| mounting_methods | Screw (M8 bolt) mounting or clamp mounting; single-axis tracker mounting with M6 bolts (Trina Vertex Series User Manual pp.15-23) disputed |
| orientation_allowed | ['portrait', 'landscape'] |
| stacking_restriction | vertical landscape packages: no more than two layers; vertical portrait packages: stacking not allowed (manual p.4); repacked horizontal stacks <= 16 modules (pp.9-10) |
Environment
| ammonia | IEC62716 certified |
| fire_rating | UNKNOWN |
| hail | UNKNOWN |
| max_static_load_front_pa | UNKNOWN |
| max_static_load_rear_pa | UNKNOWN |
| operating_temperature_c | -40~+70 (2025_C global datasheet) |
| pid | UNKNOWN |
| salt_mist | IEC61701 certified |
| salt_mist_resistance | IEC 61701 tested; 50-500 m from the sea requires stainless steel or aluminium mounting materials (manual p.3) |
| snow_load | UNKNOWN |
| storage_temperature_c | -40 to +50, RH < 85% (manual p.9) |
| wind_load | UNKNOWN |
Protection
| fuse_sizing_rule | 1.5 x ISC <= In <= Max Series Fuse Rating (IEC) or 1.56 x ISC <= In <= Max Series Fuse Rating (NEC) (manual pp.26-27) |
Certifications
| standards | ['IEC61215', 'IEC61730', 'IEC61701', 'IEC62716', 'ISO 9001', 'ISO 14001', 'ISO 14064', 'ISO 45001', 'ISO 14067'] |
Warranty & service
| annual_degradation_pct | 0.4 |
| first_year_degradation_pct | 1.0 |
| performance_years | 30 |
| product_years | 12 |
| retained_power_at_year | 30 |
| retained_power_end_pct | 87.4 |
Documents
datasheet
N-type i-TOPCon Ultra BIFACIAL DUAL GLASS MONOCRYSTALLINE MODULE TSM-NEG21C.20 715-740W
rev DT-M-0042-G-EN-J / TSM_EN_2025_C
warranty
{# Located but never retrieved: listed, but deliberately not linked, and it
backs no stored value. #}
Global Limited Warranty for Trinasolar Brand Crystalline Solar Photovoltaic Modules — located, not retrieved
rev PS-M-0135-G-EN-AC
Recorded conflicts
physical.glass Review required
Back: 2.0 mm Heat Strengthened Glass — Global datasheet TSM_EN_2025_C
Back: 2.0 mm Heat Strengthened Glass (White Coating) — North America datasheet TSM_NA_EN_2024_A
Fire Type 29 or Class C — North America datasheet TSM_NA_EN_2024_A (fire rating, recorded here as a note)
environment.operating_temperature_c Review required
-40~+70 degC — Global datasheet TSM_EN_2025_C (DT-M-0042-G-EN-J)
-40~+85 degC — North America datasheet TSM_NA_EN_2024_A
electrical.isc_a Review required
18.44 — stored value
18.49 — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
electrical.voc_v Review required
49.2 — stored value
49.4 — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
installation.grounding Review required
star washer penetrating the anodized frame coating, torque 3-7 N.m; grounding wire 4-16 mm2 solid bare copper; resistance < 1 ohm (manual p.23) — stored value
All module frames and mounting racks must be properly grounded; recommended wire 4-16 mm2 / 12-6 AWG solid bare copper; grounding screw torque 3-7 N.m (Vertex Series User Manual) — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
installation.clamp_requirements Review required
clamp overlap on the frame 8-12 mm; clamp length >= 50 mm, thickness >= 4 mm (manual pp.17-21) — stored value
Manual, NEG21C.20 rows: screw installation, mounting rails parallel to long-side frame - 'Uplift load <= 2400 Pa, Downforce load <= 2800Pa'; clamp installation, 4 clamps on long side, rails perpendicular, A = (440 - 540) mm - 'Uplift load <= 2400 Pa, Downforce load <= 5400 Pa'; single-axis, distance between mounting holes 400mm - 'Uplift load <= 2200 Pa, Downforce load <= 2200 Pa'. Clamp minimum length >=50 mm, thickness >=4 mm, aluminium alloy 6005-T5/T6, frame overlap at least 8 mm but not more than 12 mm. Design loads = mechanical loads / 1.5 safety factor. — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
installation.mounting_methods Review required
Screw (M8 bolt) mounting or clamp mounting; single-axis tracker mounting with M6 bolts (Trina Vertex Series User Manual pp.15-23) — stored value
Vertex Series User Manual (UM-M-0002 Ver. O) permits screw/bolt installation (M6/M8), clamp installation (minimum 4 clamps per module) and single-axis tracker installation — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
electrical.cell_technology Review required
N-type TOPCon monocrystalline, 132 cells, bifacial dual-glass (Vertex N) — stored value
N-type i-TOPCon Monocrystalline, 132 cells, bifacial dual glass (Vertex N) — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
electrical.imp_a Review required
17.4 — stored value
17.44 — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
electrical.vmp_v Review required
41.1 — stored value
41.3 — incoming package
Detected during import pv-top5-full-portfolio-2026-09-03
Additional documented parameters
Recorded verbatim from the source; no schema field exists for these yet.
| BNPI condition | front 1000W/m2, rear 135W/m2 |
| Fire Rating (NA sheet) | Type 29 or Class C |
| Packaging | Modules per box: 33 pieces; Modules per 40' container: 594 pieces |
| Power Bifaciality | 80+/-5% |