Cummins OTEC400 Automatic Transfer Switch
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At a glance
- Amperage
- 400 A
- Voltage
- 120/240 V (rated up to 600 V AC)
- Phase
- Single-phase (1Ø)
- Poles
- 2-pole
- Service Entrance Rated
- No (Non-Service-Entrance / NSE)
- Enclosure
- NEMA Type 1 (indoor, general purpose)
- Frequency
- 50/60 Hz
- Listing
- UL 1008 listed; NEMA ICS 10 compliant
- Control
- PowerCommand 40-11 microprocessor control with LCD display
- Transition Type
- Open transition (with programmed transition timing)
Not sure if this fits?
Why this generator
- 400-amp automatic transfer switch for single-phase 120/240V standby power applications
- Non-service-entrance rated in a NEMA Type 1 indoor enclosure
- UL 1008 listed and NEMA ICS 10 compliant for code-compliant emergency and standby use
- PowerCommand 40-11 microprocessor control with LCD display and tactile soft-switch navigation
- Bidirectional linear actuator delivers smooth, constant-force straight-line transfer action
- Heavy-duty silver alloy contacts with multi-leaf arc chutes rated for motor loads or full system transfer
- Mechanical and electrical interlocking prevents source-to-source connection
Everything you need to know
Cummins OTEC400 — 400 Amp automatic transfer switch with LCD display, open transition, and configurable exerciser scheduler. Choose voltage, phase, and enclosure rating below.
- 400A, 3-Pole
- NEMA 1 (indoor) or NEMA 3R (outdoor) enclosure
- 240V/1Ph, 208V/3Ph, 240V/3Ph, or 480V/3Ph
- Open transition, LCD display, configurable exerciser
- Non Service Entrance Rated
Factory-authorized Cummins dealer MAP pricing. Ships via calculated freight — shipping shown at checkout (heavy/hazmat item).
Frequently asked questions
Is this a genuine OEM part?+
Yes — sold and shipped as a genuine Cummins part from a factory-authorized dealer.
Will it fit my unit?+
Check your model and year — message us with that info and we'll confirm fit before you order.
How fast does it ship?+
Low cost ground shipping — calculated at checkout (batteries, transfer switches and oversized items). Most leave the warehouse in 2–4 business days.
What's the return policy?+
30-day returns on unused parts and accessories in original packaging.
Fast nationwide shipping
Low cost ground shipping — calculated at checkout. Typically ships in less than 2 weeks.
Install help, no upsell
We size, spec, and connect you with a vetted local installer — or talk your contractor through it for free.
Genuine Cummins part
Sold and shipped as a genuine Cummins OEM part from a factory-authorized dealer. 30-day returns on unused parts in original packaging.