Manual Starters, Type M and T—Integral Horsepower

Class 2510, 2511, 2512 / Refer to Catalog 2510CT9701

Integral Horsepower

Types M and T integral horsepower manual starters provide convenient On-Off operation of small single phase, polyphase or DC motors. Typical applications include small machine tools, pumps, fans and conveyors.

Push button (M) or toggle (T) operators
Reliable overload protection
Auxiliary contact available

Integral Horsepower Manual Starters (see Thermal Unit Selection)

Non-Reversing, Class 2510, Max. Voltage: 600 Vac
No. of Poles	NEMA Size	Ratings			NEMA 1 Surface Mounting		NEMA 4/4X Watertight and Dusttight Enclosure Brushed Stainless Steel	NEMA 4/4X Watertight, Dusttight and Corrosion-Resistant Glass-Polyester Enclosure	NEMA 7 & 9 For Hazardous Locations Class I— Groups C, D Class II— Groups E, F & G	NEMA 12 Dusttight and Driptight Industrial Use Enclosure	Open Type
		Motor Voltage	Max. Hp		Square P.B. Operator	Toggle Operator				NEMA 12 Dusttight and Driptight Industrial Use Enclosure	Square P.B. Operator	Toggle Operator
		Motor Voltage	Poly- Phase	Single Phase	Type		Type	Type	Type ^[1]	Type	Type
2- Pole	M-0	115 230	— —	1 2	—	TBG1	MBW11 ^[2]	MBW1 ^[2]	—	MBA1 ^[2]	—	—
	M-1	115 230	— —	2 3	—	TCG1	MCW11	MCW1	—	MCA1	—	—
	M-1P	115 230	— —	3 5	MCG2	—	MCW12	MCW2	—	MCA2	MCO2	—
3- Pole	M-0	200-230 380-575	— 3 5	— — —	MBG2	TBG2	MBW12 ^[2]	MBW2 ^[2]	MBR2 ^[2]	MBA2 ^[2]	MBO2	TBO2
3- Pole	M-1	200-230 380-575	— 7.5 10	— — —	MCG3	TCG3	MCW13	MCW3	MCR3	MCA3	MCO3	TCO3
DC 2- Pole	M-0	115 230	1 hp DC 1.5 hp DC		—	TBG4	MBW14	MBW4	—	MBA4	—	TBO4
DC 2- Pole	M-1	115 230	1.5 hp DC 2 hp DC		—	TCG5	MCW15	MCW5	MCR5	MCA5	MCO5	—

All Except NEMA 7 and 9

File E42243

CCN NLRV

All Except NEMA 7 and 9

File LR60905

Class 3211-05

NEMA 7 and 9 Only

File E58760

CCN NPXZ

NEMA 7 and 9 Only

File LR26817

Class 3218-04

How to Order

To Order Specify:	Catalog Number
Class Number Type Number	Class	Type
Class Number Type Number	2510	MCA1

Reversing and Two Speed

Class 2511 reversing and Class 2512 two-speed manual starters consist of two mechanically interlocked Class 2510 Types M or T manual starters.

Reversing Class 2511

Class	Description	Number of Poles	NEMA Size	Ratings		NEMA 1 Surface Mounting	Open Type
Class	Description	Number of Poles	NEMA Size	Motor Voltage	Maximum Hp	Toggle Operator	Square P.B. Operator	Toggle Operator
2511	Standard	3-Pole	M-0	200-230	3	TBG1	MBO1	TBO1
			M-0	380-575	5	TBG1	MBO1	TBO1
			M-1	200-230	7-1/2	TCG1	—	—
			M-1	380-575	10	TCG1	—	—

Two Speed, Class 2512 (Wye-Connected Separate Winding Motors Only)

Class	Description	Number of Poles	NEMA Size	Ratings			NEMA 1 Surface Mounting		Open Type
Class	Description	Number of Poles	NEMA Size	Motor Voltage	Constant Hp	Constant Torque or Variable Torque	Square P.B. Operator	Toggle Operator	Square P.B. Operator	Toggle Operator
2512	Standard	3-Pole	M-0	200-230	2	3	—	TBG1	—	TBO1
			M-0	380-575	3	5	—	TBG1	—	TBO1
			M-1	200-230	5	7-1/2	MCG1	TCG1	MCO1	TCO1
			M-1	380-575	7-1/2	10	MCG1	TCG1	MCO1	TCO1

Thermal Units

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.

Application Data

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 Vac max.; 250 Vdc 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) and 12 versions utilize a direct acting push button only.
NEMA 4/4X (polyester) and 7/9 versions utilize an external toggle to actuate a push button device inside.

Maintenance of Equipment

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.

Terminal information and Replacement Contact Kits

NEMA Size	Power Terminals		Auxiliary Interlock Terminals		Number of Poles	Service Bulletin	Replacement Contact Kit
NEMA Size	Type of Lug	Wire Size (Solid or Stranded Copper Wire) Min.-Max.	Type of Lug	Wire Size (Solid or Stranded Copper Wire) Min.-Max.	Number of Poles	Service Bulletin	Class	Type
M-0	Pressure Wire	14–8	Pressure Wire	16–12	2 or 3	312AS	9998	ML1
M-1	Pressure Wire	14–8	Pressure Wire	16–12	2 or 3	312AS	9998	ML2
M-1P	Box Lug	14–6	Pressure Wire	16–12	2	312AS	9998	ML2

Accessories and Modification Kits

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 Auxiliary Contacts for Manual and Magnetic Contactors and Starters, Class 9999 Types SX11 or SX12.