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Automatic Transfer Switches 100 through 400 ampere sizes
Get all the intelligence your optional standby system needs to make sure power stays on when the utility fails with ASCO Series 185 Power Transfer Switches. When utility power has been restored, this line of power transfer switches will automatically transfer your loads back to utility and shut down the generator, saving fuel and standing ready to address the next utility failure.
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| Amps/Poles | Automatic | Manual | ||
| Type 1 | Type 3R | Type 1 | Type 3R | |
100/2 |
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200/2 |
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230/2 |
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260/2 |
N/A |
N/A |
||
400/2 |
N/A |
N/A |
||
| Acc | Description | Price |
| 105 G | Control Interface for Generac Air Cooled Gensets | $115.83 |
| Kits | Description | Price |
K732212-003 |
Strip heater w/ thermostat, external 120V source required |
$172.58 |
K871966-002 |
Single channel remote annunciator includes connectivity module |
$924.30 |
K373314 |
Accessory 14A/14B auxiliary contacts for customer mounting(D frame only) |
$65.00 |
842363 |
Group 4 retrofit kit for series 165 |
$304.20 |
| Part # | Description | Price |
766339-001 |
100 Amp TS Unit |
$479.70 |
766339-002 |
200 Amp TS Unit |
$613.08 |
766339-003 |
230 Amp TS Unit |
$784.49 |
798923 |
Group 4 Replacement Controller (2 Wire Start Only) |
$304.20 |
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| Utility Breaker | Type 1 Enclosure | Type 3R Enclosure |
AMP |
2 Pole |
2 Pole |
100 |
||
200 |
||
400 |
| Dual Breaker | Type 1 Enclosure | Type 3R Enclosure |
AMP |
2 Pole |
2 Pole |
100 |
||
200 |
||
400 |
*(Test Switch, Generator exerciser and bypass switch, Load on utility & generator indicating light, Utility and generator acceptable indicating light, Automatic test light, square - D normal source breaker) All are standard features*
| Acc | Description | Price |
105G |
Control interface for Generac Air Cooled Gensets |
| Kits | Description | Price |
K732212-003 |
Strip heater w/ thermostat, external 120V source required |
$172.58 |
K871966-002 |
Single channel remote annunciator includes connectivity module |
$924.30 |
K373314 |
Accessory 14A/14B auxiliary contacts for customer mounting(D frame only) |
$65.00 |
842363 |
Group 4 retrofit kit for series 165 |
$304.20 |
| Part # | Description | Price |
766339-001 |
100 Amp TS Unit |
$479.70 |
766339-002 |
200 Amp TS Unit |
$613.08 |
766339-003 |
230 Amp TS Unit |
$784.49 |
798923 |
Group 4 Replacement Controller (2 Wire Start Only) |
$304.20 |
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| Series 185P | Type 1 Enclosure |
Amp |
2 Pole |
125 (20 ckt) |
*(Test Switch, Generator exerciser and bypass switch, Load on utility & generator indicating light, Utility and generator acceptable indicating light, Automatic test light, Square-D normal source breaker, Square-D 30 circuit panelboard) All are standard features*
| Acc | Description | Price |
105G |
Control interface for Generac Air Cooled Gensets |
| Kits | Description | Price |
K732212-003 |
Strip heater w/ thermostat, external 120V source required |
$172.58 |
K871966-002 |
Single channel remote annunciator includes connectivity module |
$924.30 |
K373314 |
Accessory 14A/14B auxiliary contacts for customer mounting(D frame only) |
$65.00 |
| 842977 | Group 4 retrofit kit for series 165P Load Center | |
K752139 |
Square-D Plug in surge suppressor |
| Part # | Description | Price |
766339-001 |
100 Amp TS Unit |
$479.70 |
766339-002 |
200 Amp TS Unit |
$613.08 |
766339-003 |
230 Amp TS Unit |
$784.49 |
798923 |
Group 4 Replacement Controller (2 Wire Start Only) |
$304.20 |
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| Series 185L | Type 1 Enclosure |
Amp |
2 Pole |
200 |
*(Test Switch, Generator exerciser and bypass switch, Load on utility & generator indicating light, Utility and generator acceptable indicating light, Automatic test light, Square-D normal source breaker, Square-D 30 circuit panelboard) All are standard features*
| Acc | Description | Price |
105G |
Control interface for Generac Air Cooled Gensets |
| Kits | Description | Price |
K732212-003 |
Strip heater w/ thermostat, external 120V source required |
$172.58 |
K871966-002 |
Single channel remote annunciator includes connectivity module |
$924.30 |
K373314 |
Accessory 14A/14B auxiliary contacts for customer mounting(D frame only) |
$65.00 |
K752139 |
Square-D Plug in surge suppressor |
| Part # | Description | Price |
766339-001 |
100 Amp TS Unit |
$479.70 |
766339-002 |
200 Amp TS Unit |
$613.08 |
766339-003 |
230 Amp TS Unit |
$784.49 |
798923 |
Group 4 Replacement Controller (2 Wire Start Only) |
$304.20 |
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*For sales or special pricing, please call 800-341-7027.

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Residential power outages can jeopardize homeowner's personal safety and comfort and also cause millions of dollars in damages to small businesses each year. Computers, communications, air conditioning, security systems, refrigerators, freezers, hot water heaters, and sump pumps all depend on electrical power to operate. A generator is one piece of the solution.

An ASCO Series 185 Power Transfer Switch is the other. ASCO's 185 switch is the vital link that makes continuous power hassle free. ASCO Series 185 Power Transfer Switches provide all the intelligence your generator needs to make sure the power stays on when utility power fails, sensing the loss of utility power and signaling the generator to start and restore power to your home or business – even if no one is home. When utility power has been restored, the Series 185 Power Transfer Switch automatically transfers your vital loads back to the utility and shuts the generator down.
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Working hand in hand with virtually every brand of generator, ASCO Series 185 Power Transfer Switches provide around-the-clock protection from a power failure, taking action only when required.
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Product Features
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| Item # | Type | Amps | H | W | D | Weight |
| Dim(In) | lb (kg) | |||||
185A2100F4C |
Steel |
100 |
24 |
14.25 |
8.25 |
44 (20) |
185A2200F4C |
Steel |
200 |
24 |
14.25 |
8.25 |
44 (20) |
185A2230F4C |
Steel |
230 |
24 |
14.25 |
8.25 |
44 (20) |
185A2260F4C |
Steel |
260 |
45 |
22 |
7.5 |
79 (28) |
185A2400F4C |
Steel |
400 |
45 |
22 |
7.5 |
79 (28) |
185A2100F4M |
Aluminum |
100 |
24 |
16 |
10 |
49 (22) |
185A2200F4M |
Aluminum |
200 |
24 |
16 |
10 |
49 (22) |
185A2230F4M |
Aluminum |
230 |
24 |
16 |
10 |
49 (22) |
185A2260F4M |
Aluminum |
260 |
45 |
24 |
10 |
118 (53) |
185A2400F4M |
Aluminum |
400 |
45 |
24 |
10 |
118 (53) |
1 Type 3R enclosures provide a degree of protection against falling dirt, rain, sleet and snow. Additional protection may be required in locations subject to wind blown conditions.
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Manual transfer switches.
| Item # | Type | Amps | H | W | D | Weight |
| Dim (in) | lb (kg) | |||||
185A210000C |
Steel |
100 |
24 |
14.25 |
8.25 |
44 (20) |
185A220000C |
Steel |
200 |
24 |
14.25 |
8.25 |
44 (20) |
185A223000C |
Steel |
230 |
24 |
14.25 |
8.25 |
44 (20) |
185A210000M |
Aluminum |
100 |
24 |
16 |
10 |
49 (22) |
185A220000M |
Aluminum |
200 |
24 |
16 |
10 |
49 (22) |
185A223000M |
Aluminum |
130 |
24 |
16 |
10 |
49 (22) |
1 Type 3R enclosures provide a degree of protection against falling dirt, rain, sleet and snow.
Additional protection may be required in locations subject to wind blown conditions.
2 Manual operating handle extends 2 1/2" on left side of enclosure.
| Kit | Accessory Description |
| K373314 | Auxiliary Switch Position Contact Kit 14A/14B, 100-230A (Note: 14A/14B Contacts are included on 400A products) |
| K732212-003 | Strip Heater Kit For Type 3R Series 185 Enclosures, 100 Watt, For Use In Condensing Humidity Environments |
| K871966-002 | Single Remote Annunciator With Connectivity Module Package 72R (Annunciator mounts flush on standard 4" electrical wall box) |
| Asco transfer switch comparison |
NOTE: Specify strip heater kit K732212-003 for type 3R outdoor application requirements when temperatures below 32°F can be experienced to help prevent condensation and freezing of this condensation. This is particularly important when environmental enclosures (Type 3R) are ordered for installation outdoors.
| Asco 185 Series transfer switch spec sheet |
| Asco 185 Series transfer switch user manual |