Description

JA Solar JAM78S10-MR 455W Module

The JA Solar JAM78S10-MR is a 455 W monocrystalline module with 156 cells (6×26) and 21.0% module efficiency. Its lower current output (about 10 A) suits smaller string designs and residential or light-commercial systems, while the 1000/1500 V DC rating gives flexibility with different inverter classes.

Key specifications (455 W)

Model	JA Solar JAM78S10-455/MR
Power range	435-455 W
Rated maximum power	455 W
Power tolerance	0 ~ +5 W
Module efficiency	21.0%
Maximum power voltage (Vmp)	45.83 V
Maximum power current (Imp)	9.93 A
Open circuit voltage (Voc)	53.87 V
Short circuit current (Isc)	10.56 A
Cells	156 (6 x 26)
Junction box	IP68, three diodes
Connector	MC4-EVO2 / QC 4.10-35
Maximum system voltage	1000/1500 V DC (IEC)
Maximum series fuse	20 A
Operating temperature	-40 to +85 C
NOCT	45 +/- 2 C
Safety class	Class II
Mechanical load	5400 Pa front / 2400 Pa rear
Packaging	27 pcs/pallet

Typical applications

Residential rooftop systems
Light commercial rooftops
Off-grid and hybrid installations
Projects with 1000 V DC inverters

Supply, MOQ and delivery

Modules are supplied factory-direct from our Shanghai warehouse. Minimum order quantity, container loading plan and lead time are confirmed per order based on destination port and required volume, and mixed-wattage containers can be arranged on request. Each shipment includes the datasheet, IEC certificates and packing list.

Certifications

IEC 61215, IEC 61730; ISO 9001:2015, ISO 14001:2015, ISO 45001:2018.

FAQ

Why is the current only about 10 A?
The JAM78S10-MR uses a different cell layout that trades current for voltage, which can suit smaller MPPT channels and thinner cabling.

Can it be used with 1000 V DC inverters?
Yes, the module is rated for 1000/1500 V DC systems.

Do you provide datasheets?
Yes, the full datasheet and certification documents are available on request.

Request a quote for the JA Solar 455W module or browse the JA Solar panel range.