O-R1

METALL CASING
O-R2

METALL CASING
 transformer 30VA/17V, space for battery 12V
O-R3

METALL CASING
 transformer 30VA/17V, space for battery 12V
O-RDIN

METALL CASING
 LED panel, DIN rail casing or wall mount
O-RH

PLASTIC (ABS) CASING
 transformer 30VA/17V, space for battery 12V
O-R2-LED

METALL CASING
 transformer 30VA/17V, space for battery 12V