Class 2511 reversing and Class 2512 two-speed manual starters consist of two mechanically interlocked Class 2510 Types M or T manual starters.
Starters will not operate without properly installed thermal units and device reset. Thermal unit must be installed so that markings face the front of starter.
Size–Available in NEMA Sizes M-0, M-1, and M-1P.
Poles–Two poles single phase; three poles polyphase;
2 poles DC.
Voltage–600 volts AC max.; 250 volts DC max.
Overload Relays–Melting alloy thermal overload relays have provisions for one Type B thermal unit for single phase starters and three Type B thermal units for three phase starters.
All thermal units must be installed and the device reset before the starter contacts will operate. After overload relays have tripped, allow one or two minutes for the alloy to solidify before resetting.
Operator–Available with a push button or toggle operator in open and NEMA 1 versions. NEMA 4/4X (stainless) & 12 versions utilize a direct acting push button only.
NEMA 4/4X (polyester) & 7/9 versions utilize an external toggle to actuate a push button device inside.
For proper performance, all equipment should be periodically inspected and maintained. Replacement contacts and interlocks are available in kit form to facilitate servicing and stocking. In addition, the service bulletin contains an exploded view of the device with components clearly marked for easy identification by description and part number.
Mechanism Lock Off – Both open devices and starters in NEMA 1 surface and flush mounting, and NEMA 4, 4X, 7 & 9 and 12 enclosures can be locked in the OFF or STOP position. The NEMA 1 surface mounting, 4, 4X, 7 & 9 and 12 enclosures can also be locked closed to prevent unauthorized entry.
One auxiliary contact, either N.O. or N.C. can easily be added internally to any open or enclosed Type M or T manual starter. It occupies the space provided in either the upper right hand or left hand corners of the device. These contacts are for AC loads only. For electrical ratings refer to page
16-123, Class 9999 Types SX11 or SX12.
A unique red pilot light assembly that clips into place is available
factory installed on NEMA 1, 4, 4X, 12 and flush enclosures or as a
field modification kit on the NEMA 1 surface or flush mounting enclosures. See page
16-9. The color cap assembly snaps into a knockout in the enclosure cover on the NEMA 1 enclosures. Pilot light kits are available for use on Various voltages (110-600 volts). Pilot light assemblies are not available for NEMA 7 & 9 enclosures.
