KOHLER KSS-Series 800-Amp Automatic Transfer Switches
CUSTOM CONFIGURATION
The chart tells the story.
You can custom configure switches by choosing the exact components needed. This standard process allows Kohler to provide the correct switch for your application with delivery in the shortest amount of time. Each letter and numeral corresponds to a specific element of the automatic transfer switch (ATS). Here’s an example.
KOHLER® AUTOMATIC TRANSFER SWITCH (K)
- Bypass-isolation mechanism (B)
- Programmed transition (P)
- Decision-Maker® MPAC®
1500 controller (D) - 480 V, 60 Hz (M)
- 4-pole, 4-wire with switched neutral (V)
- NEMA 1 enclosure (A)
- Rated at 150 amps (0150)
- Standard connection (S)
| Mechanism | Transition | Controls | Voltage | Poles/Wires | ||||
| S – Standard (Specific Breaker) | S – Standard | A – MPAC 1200 | C – 208 V / 60 Hz | T – 3-Pole / 4-Wire, Solid Neutral | ||||
| C – Standard (Time-based) | P – Programmed | D – MPAC 1500 | D – 220 V / 50 Hz | N – 2-Pole / 3-Wire, Solid Neutral | ||||
| B – Mechanically Operated Bypass-Isolation | C – Closed | B – MPAC 1200 Nonautomatic | F – 240 V / 60 Hz | V – 4-Pole / 4-Wire, Switched Neutral | ||||
| A – Electrically Operated Bypass-Isolation | F – MPAC 1500 Nonautomatic | G – 380 V / 50 Hz | W – 4-Pole / 4-Wire, Overlapping Neutral | |||||
| E – SErvICE EnTrAnCE | H – 400 V / 50 Hz | |||||||
| J – 416 V / 50 Hz | ||||||||
| K – 440 V / 60 Hz | ||||||||
| M – 480 V / 60 Hz | ||||||||
| N – 600 V / 60 Hz | ||||||||
| P – 380 V / 60 Hz | ||||||||
| R – 220 V / 60 Hz | ||||||||
| S – 400 V / 60 Hz | ||||||||
| Enclosure | Amps | Connection | Utility (KEP) | Generator (KEP) | ||||
| A – NEMA 1 | 30–4000 | S – Standard | M – MCCB TM 100–200 A | K – MCSW 100–1200 A | ||||
| B – NEMA 12 | F – Front | N – MCCB ET 250–800 A | M – MCCB TM 100–200 A | |||||
| C – nEMA 3r | P – MCCB ET GF 1000–1200 A | N – MCCB ET 250–1200 A | ||||||
| D – nEMA 4 | R – ICCB ET 800 A | Q – ICSW 800–4000 A | ||||||
| F – nEMA 4X | T – ICCB ET GF 1000–4000 A | R – ICCB ET 800–4000 A | ||||||
| G – OPEn | ||||||||
THERE ARE THOUSANDS OF WAYS TO CUSTOM CONFIGURE AN AUTOMATIC TRANSFER SWITCH. HERE’S AN OVERVIEW.
STANDARD ATS Has a single mechanism that transfers the load from one power source to another power source.
| Models | Mechanisms | Transitions | Controllers | Voltages | Poles/Wires | Enclosures | Amps | Connections |
| K | S | S | A, B | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V | A, B, C, D, F, G | 30, 70, 104, 150 | S |
| K | S | S | A, B | C, D, F, G, H, J, K, M, P, R, S | N, T, V | A, B, C, D, F, G | 200, 230 | S |
| K | S | S | A, B | N | N, T, V, W | A, B, C, D, F, G | 230 | S |
| K | S | S | A, B | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, W | A, B, C, D, F, G | 260, 400, 600, 800 | S |
| K | S | S | A, B | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, B, C, D, F, G | 1000, 1200 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V | A, B, C, D, F, G | 30, 70, 104,150 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, P, R, S | N, T, V | A, B, C, D, F, G | 200, 230 | S |
| K | C | S | A, B, D, F | N | N, T, V, W | A, B, C, D, F, G | 230 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, W | A, B, C, D, F, G | 260, 400, 600, 800 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, B, C, D, F, G | 1000, 1200 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, C, G | 1600, 2000 | F |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, C, G | 1600, 2000, 2600, 3000 | S |
| K | C | S | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, C | 4000 | S |
| K | C | P | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V | A, B, C, D, F, G | 150, 225, 260, 400, 600, 800 | S |
| K | C | P | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, B, C, D, F, G | 1000, 1200 | S |
| K | C | P | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C, G | 1600, 2000 | F |
| K | C | P | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C, G | 1600, 2000, 2600, 3000 | S |
| K | C | P | A, B, D, F | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C | 4000 | S |
| K | C | C | A, D | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V | A, B, C, D, F | 150, 260, 400, 600, 800 | S |
| K | C | C | A, D | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, B, C, D, F | 1000, 1200 | S |
| K | C | C | A, D | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C | 1600, 2000 | F |
| K | C | C | A, D | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C | 1600, 2000, 2600, 3000, 4000 | S |
BYPASS-ISOLATION ATS Bundles an automatic and a manual transfer switch into a single unit.
| Models | Mechanisms | Transitions | Controllers | Voltages | Poles/Wires | Enclosures | Amps | Connections |
| K | B | S | D | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, W | A, C | 150, 225, 260, 400, 600 | S |
| K | B | S | D | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, C | 800, 1000, 1200 | F |
| K | B | S | D | C, D, F, G, H, J, K, M, N, P, R, S | T, V, W | A, C | 800, 1000, 1200, 1600, 2000, 2600, 3000, 4000 | S |
| K | B | P, C | D | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, | A, C | 150, 225, 260, 400, 600 | S |
| K | B | P, C | D | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C | 800, 1000, 1200 | F |
| K | B | P, C | D | C, D, F, G, H, J, K, M, N, P, R, S | T, V | A, C | 800, 1000, 1200, 1600, 2000, 2600, 3000, 4000 | S |
| K | A | S | D | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, W | A, C | 150, 225, 260, 400, 600 | S |
| K | A | P | D | C, D, F, G, H, J, K, M, N, P, R, S | N, T, V, | A, C | 150, 225, 260, 400, 600 | S |
SERVICE-ENTRANCE ATS Serves as both ATS and utility disconnect; circuit breakers and motor operators are used as the switch mechanism.
| Models | Mechanisms | Transitions | Controllers | Voltages | Poles/Wires | Enclosures | Amps | Connections | Utility Disconnects | Generator Disconnects |
| K | E | P | D | C, F, K, M, R | N, T, V | A, B, C, D, F | 100, 150 | S | M | K, M |
| K | E | P | D | C, F, R | N, T | A, B, C, D, F | 200 | S | M | K, M |
| K | E | P | D | C, F, K, M, R | N, T, V | A, B, C, D, F | 250, 400, 600, 800 | S | N | K, N |
| K | E | P | D | C, F, K, M, R | T, V | A, B, C, D, F | 1000, 1200 | S | P | K, N |
| K | E | P | D | C, F, K, M, R | T, V | A, C | 800 | S | R | Q, R |
| K | E | P | D | C, F, K, M, R | T | A, C | 4000 | S | T | Q, R |
DECISION-MAKER® MPAC® CONTROLLERS
Two options. Two solutions.
- MPAC1200
A customizable solution for your specific application. The ATS1200 gives you full control of system behavior including extended I/O to customize your needs.
- MPAC1500
When you need to manage your loads, use your system as a prime power application or have a backup for your backup (i.e., a three-source system). This controller gets the job done.
| Voltage and Frequency Settings | ||
| Pickup / Dropout normal source voltage | Programmable | Programmable |
| Pickup / Dropout emergency source voltage | Programmable | Programmable |
| Frequency selection | 50/60 Hz | 50/60 Hz |
| Pickup / Dropout normal source frequency | Programmable | |
| Pickup / Dropout emergency source frequency | Programmable | Programmable |
| Overvoltage trip | Programmable | Programmable |
| Overfrequency trip | Programmable | Programmable |
| Normal and emergency voltage unbalance | Standard | Standard |
| In-phase monitor | Standard | Standard |
| Transfer commit | Standard | Standard |
| Phase rotation sensing | Standard | Standard |
| Time Delays and Configuration Settings | ||
| Transfer to emergency / Transfer to normal | Programmable | Programmable |
| Engine cooldown | Programmable | Programmable |
| Generator exerciser | 21 exercise events | 21 exercise events |
| Remote peak shave | Standard | Standard |
| Start-time delay | Programmable (emergency only) | Programmable |
| Fail to acquire | Programmable (emergency only) | Programmable |
| Communications | ||
| RS-485 | Standard | Standard |
| Ethernet | Optional | Standard |
| Accessories | ||
| Programmable engine exerciser | Standard | Standard |
| Extended I/O | Optional (up to 4 modules) | Optional (up to 4 modules) |
| Digital meter | Optional | Optional |
| Source priority selector | Optional | Optional |
| Extended engine start-time delay | Optional | Optional |
| Controller disconnect switch | Optional | Optional |
| Load shed | Optional | Optional |
| Load control | Time-based | Time- or current-based |
| Three-source system Prime power | Standard Standard | |
THE ATS LINEUP
Peace of mind starts here.
Bridging the gap between loss of utility and standby power is no small task. KOHLER® automatic transfer switches (ATS) are designed to meet that challenge, distributing power to feed the critical loads of your facility.
Every transfer switch needs a controller to ensure transfer of power from utility to generator and back again. KOHLER Decision-Maker® MPAC® controllers offer clear choices in matching function to application.
STANDARD FEATURES
Multiple Applications
Find the perfect option. KOHLER automatic transfer switches are available in standard, bypass-isolation, and service-entrance configurations with open, closed, and programmed transition operating modes, from 30 to 4000 amps.
Seamless System Integration
Everything works together. KOHLER transfer switches are designed to interface perfectly with KOHLER generators and paralleling switchgear.
Advanced Communications
Every transfer switch comes fully loaded with the technology to do the job. Ethernet and Modbus communications capabilities are available.
Certified Packages
Transfer switches are UL-listed and have CSA and IBC certifications available.
Kohler Power | In Power. Since 1920.
