Product Description
Toyota TO 00591-30734-81 is a 15 amp, 24VDC EV100 series contactor designed for electric lift truck control applications. The unit features stud terminal connections, continuous coil rating, copper alloy silver-plated contacts, and standard EV100 panel mounting.
Specifications
Electrical Specifications
| Coil Voltage | 24VDC |
| Contactor Type | EV100 series, single pole, normally open |
| Duty Cycle | Continuous coil rating |
| Control Circuit Voltage | 24VDC |
Mechanical Specifications
| Contact Rating | 15 ampere continuous duty |
| Mechanical Life | Over 1 million cycles at rated load |
Part Numbers
| OEM Part Number | 00591-30734-81 |
| Manufacturer Part Number | TO 00591-30734-81 |
Frequently Asked Questions
Q: What are the key specifications of the TO 00591-30734-81?
A: The TO 00591-30734-81 is a 15-ampere continuous duty contactor rated at 24VDC. It is a single-pole normally open EV100 series device designed for Toyota electric lift truck control applications. It features stud terminal connections, copper alloy silver-plated contacts, and standard EV100 panel-mount construction with mechanical life exceeding 1 million cycles.
Q: Why would I choose a 15A contactor over a 150A or 300A unit?
A: The 15-ampere rating makes the TO 00591-30734-81 suitable for low-current control circuits, auxiliary circuits, or smaller lift truck models such as pallet jacks and light-duty walkie stackers. The coil and contacts are sized to handle only the current levels these applications require. Oversizing creates unnecessary cost and may compromise control precision.
Q: What material are the contacts made from?
A: This contactor uses copper alloy contacts with silver plating. The silver provides excellent electrical conductivity and arc resistance. Under normal duty cycling, silver-plated contacts maintain low contact resistance and resist oxidation better than bare copper, extending the service life of the device.
Q: What does continuous coil rating mean?
A: Continuous coil rating means the 24VDC control coil can remain energized indefinitely without overheating. The coil is designed to dissipate heat efficiently, allowing the contactor to be held energized for extended periods. This is the standard configuration for lift truck directional and motor-control contactors.
Q: How do stud terminal connections differ from other connection types?
A: Stud terminal connections use threaded studs for electrical leads rather than soldered or push-on terminals. This design allows field replacement of wiring without removing the entire contactor from the panel. Stud connections also resist corrosion better and provide a more reliable electrical interface in industrial environments.
Q: What is the pick-up and drop-out voltage for this contactor?
A: The TO 00591-30734-81 will engage (pick up) at approximately 80 percent of rated coil voltage (about 19VDC) and will release (drop out) at approximately 30 percent of rated voltage (about 7VDC). This hysteresis ensures stable operation and prevents unwanted chatter if control voltage fluctuates slightly.