Schleicher KZT510K is a 230 V AC time-delay relay (KZT510K) with a 10H timing range and 50/60 Hz compatibility, listed as KZT510K 10H AC 230V 50-60HZ (B). The coil is rated for 220–230 V AC, and the "B" suffix denotes a specific configuration within Schleicher's KZT510K family.
