Kulka / Marathon 603-GMF-10 double row terminal block connector. Amp rating 50 A. Voltage 1.7kV. 10 contact(s). Panel mount. 603 Series Terminal Block. Made from Mineral filled Melamine. Brown Color. Can be used instead of 603-GP-10.

GMF (melamine) body material has excellent dielectric properties with high arc and flame resistance. Excellent for airborne electronic equipment.
GMF version has stronger body material than regular GP block and can be used as upgrade for GP terminal block.