ZBTS
Transfer
Switch
Used when interruption of power during service or testing is not acceptable. 100 To 4000 Amperes. MX250 Microprocessor Control. 2, 3 Or 4 Poles. Open type, NEMA 1, 3R, 4, 4X and 12. Load is not interrupted during bypass operation. High close-in and withstand capacity. Available with ZTS, ZTSD & ZTSCT Series. Bypass and Transfer Switch have identical ratings. Suitable for emergency and standby applications on all classes of load, 100% tungsten rated through 400 amps. UL 1008 listed at 480 VAC. CSA C22.2 No. 178 certified at 600 VAC. IEC 947-6-1 listed at 480 VAC.
ZBTSD
Transfer
Switch
Incorporates features from ZBTS and ZTSD transfer switches. Uses normal failure sensing and a time delay to start engine automatically if a failure occurs. 100 To 4000 Amperes. MX250 Microprocessor Control. 2, 3 Or 4 Poles. Open type, NEMA 1, 3R, 4, 4X and 12. Load is not interrupted during bypass operation. High close-in and withstand capacity. Available with ZTS, ZTSD & ZTSCT Series. Bypass and Transfer Switch have identical ratings. Suitable for emergency and standby applications on all classes of load, 100% tungsten rated through 400 amps. UL 1008 listed at 480 VAC. CSA C22.2 No. 178 certified at 600 VAC. IEC 947-6-1 listed at 480 VAC.
ZBTSCT
Transfer
Switch
Open transition transfer operation is initiated upon a source failure. Incorporates the features from the ZTS and ZBTS Series. Available in transfer switch ZTSCT and ZBTSCT styles. 100 To 4000 Amperes. 2, 3 Or 4 Poles. Open type, NEMA 1, 3R, 4, 4X and 12. Suitable for emergency and standby applications on all classes of load, 100% tungsten rated through 400 amps. UL 1008 listed at 480 VAC. CSA C22.2 No. 178 certified at 600 VAC. IEC 947-6-1 listed at 480 VAC.