2.

Tech Specs

Dielectric Strength

UL/CSA: 1000V - live to dead

metal parts

Electrical Life

50,000 cycles - maintained

25,000 cycles - momentary

Operating Temperature

32°F to 185°F (0° to 85°C)

COS-0127_REV_A

*Manufacturer reserves the right to change product specification without prior notice.

Sample

Part Number

H K 25 1 - 73

Selection

1

2

3

4

5

Three Pole

K

ON-NONE-OFF

L

ON-NONE-ON

M ON-OFF-ON

O

ON-OFF-ON

Three Pole (In Four Pole Base)

A

ON-NONE-OFF

B

ON-NONE-ON

S

ON-OFF-ON

H

2. CIRCUIT

1. SERIES

25 10A 250 VAC

15A 125 VAC

3/4HP 250 VAC

1, 2 or 3-Phase

26 3A 250 VAC

6A 125 VAC

1/4HP 12-250 VAC

1, 2 or 3-Phase

27 12A 250 VAC

17A 125 VAC

1-1/2HP 250 VAC

1, 2, 3-Phase

A25 6A 600VAC,

10A 250 VAC,

15A 125 VAC,

3/4HP 250 VAC,

1, 2, 3-Phase,

1 HP 480-600VAC; 3 Phase

A27 6A 600 VAC,

12A 250 VAC,

17A 125 VAC,

2 HP 480-600 VAC; 3 Phase

3. RATING

1, 4

8

Function

Solder .250 Tab .205 Tab .187 Tab Screw Wire

PC

Lug

(QC)

(QC)

(QC)

Term. Lead Term.

ON-NONE-OFF

0

1

2

3

4

5

6

(ON)-NONE-OFF

A

B

C

D

E

F

G

ON-NONE-(OFF)

L

M

Q

R

S

T

U

ON-NONE-ON

0

1

2

3

4

5

6

ON-NONE-(ON)

A

B

C

D

E

F

G

ON-OFF-ON

0

1

2

3

4

5

6

ON-NONE-(ON)

A

B

C

D

E

F

G

(ON)-NONE-(ON)

L

M

Q

R

S

T

U

Bat Style

Toggle with

Toggle

Bushing

Toggle

Neoprene Seal

Length

Length

73

78

.687

.465

NBL3

NBL8

.687

.465

NWH3

NWD8

.687

.465

NRD3

NRD8

.687

.465

4. TERMINATION/FUNCTION

4. TERMINATION/FUNCTION

Notes:

1

Standard Wire lead Length is 6 “ for other wire lead length, Use Wire length lead

Termination/Function code and Add “/” and the wire lead length required at the

end of the part number. Example: HK255-73/10”

2

Hardware/Packaging Options may be added to the base part number by

adding a “/” with the option at the end of the part number.

Example: HL251-73 / HDW ASSM

Available options include:

2 Hex

2 Hex nuts (1 assembled on switch, 1 Supplied in bulk)

No Hardware

No Hardware included

HDW ASSM

With Hardware assembled

HDW bulk

With Hardware bulk

Poly

With Polybag

3

The nbl toggle uses a black oxide plated metal bushing. NWN and NRD toggles

uses a nickle plated metal bushing. NBL, NWH, and NRD toggles use a four pole

base with pole 3 empty.

4 () indicates momentray function.

5 Maintained or Momentary action of the switch is determined by the combination

of the circuit and termination/function designation of the description.

Example: HK25B-73 is a (ON)-OFF circuit with .250 TAB Terminals.

6 Screw terminals are supplied with screws assembled to terminals.

7

Nylon toggles are not available with momentary circuits.

8 The “O” circuit is a reversing circuit with jumpers from terminals 1 to 6, 3 to 4 and

Terminal 7 to 9.

9 A Specials “O” circuit is a reversing circuit called out with a “J” Following the

termination/function digit in the description. Jumpers are from terminal 1 to 5, 3 to

5, 4 to 9 and 6 to 7.

10 Special “O” circuit only available with .250 TAB terminals. Example: H0251J-73

Ordering Scheme