SDC MR Manual Reset 600 Series Accessory
The SDC MR is a manual reset module built for SDC's 600 Series power supply line, giving door hardware technicians a physical way to restore locking control after the supply has tripped — no unplugging the unit, no cycling power at the panel. If you're specifying or servicing 600 Series power supplies and the install calls for a reset point that doesn't require pulling power to the whole board, the MR is the part number to add to the order.
Overview
Access control power supplies trip for a reason — an overcurrent event, a fault condition, a safety interlock — and how you clear that trip matters in a commercial deployment. Some installs are fine with a full power cycle. Others, particularly life-safety egress doors or installations where the power supply is in a hard-to-reach enclosure, need a dedicated manual reset path. That's the job the MR does: it mounts to the 600 Series power supply and gives the technician a manual reset function without disconnecting and reconnecting the supply's input power. For integrators standardizing on SDC's 600 Series across a site, keeping an MR on the truck or in the parts kit shortens the service call when a trip needs to be cleared.
Key Features
- Manual reset function: clears a tripped 600 Series power supply without a full power-down/power-up cycle — faster recovery on a service call and less disruption to any other hardware sharing that circuit.
- Purpose-built for 600 Series compatibility: the MR is designed specifically to work with SDC's 600 Series power supply, so there's no guessing on fit when it's paired with that platform.
- Lifetime warranty: SDC backs the MR with a lifetime warranty, which matters on a component that may sit unused for years until the day it's actually needed to clear a trip.
- Simple accessory-level installation: as a manual reset control rather than a full board swap, it's a straightforward addition for technicians already on-site servicing or installing the 600 Series supply.
Integration & Compatibility
The MR is built to work with SDC's 600 Series power supply platform — confirm your specific 600 Series model and configuration before ordering, since the MR is matched to that product family rather than sold as a universal reset module. For projects where you're already speccing SDC's SDC access control catalog, adding the MR at time of order avoids a second shipment when the reset function is identified as a requirement mid-install. It pairs naturally with the rest of the access control hardware set on a job — door controllers, power supplies, and the electrified locking hardware they support. If you're still finalizing which power supply and accessories a door position needs, a access control planning guide is worth reviewing before finalizing the parts list, and it's worth checking your power supplies selection alongside any access control panels already on the order to make sure reset and power architecture line up across the door schedule.
Frequently Asked Questions
Q: What does the SDC MR do?
A: The MR is a manual reset module for SDC's 600 Series power supply — it lets a technician clear a tripped supply manually instead of cycling power to the whole unit.
Q: Is the MR compatible with all SDC power supplies?
A: The MR is built for use with SDC's 600 Series power supply line. Confirm your specific 600 Series model before ordering to verify fit.
Q: What's the warranty on the SDC MR?
A: The MR carries SDC's lifetime warranty.
Q: Does installing the MR require rewiring the power supply?
A: Evidence provided does not detail wiring steps — consult the 600 Series installation documentation for your specific supply configuration before installing.
The SDC MR is a small part that solves a real service headache: resetting a tripped 600 Series power supply without killing power to the door hardware it feeds. I spec these alongside the 600 Series whenever the install has an egress door or a supply mounted somewhere inconvenient to reach.
Technical Highlights:
- Manual reset control: restores the 600 Series supply after a trip without a full power cycle, which keeps other devices on the same circuit from bouncing.
- 600 Series-specific fit: the MR is matched to SDC's 600 Series power supply platform, not a generic reset accessory, so verify your exact 600 Series model before ordering.
- Lifetime warranty: SDC's lifetime coverage on the MR is a good sign for a part that might sit dormant for years before it's ever actuated.
Deployment Considerations:
- Order the MR at the same time as the 600 Series power supply if you know the install needs a manual reset point — it avoids a follow-up parts run mid-job.
- Evidence doesn't specify mounting location or wiring detail, so confirm placement against the 600 Series installation instructions for your enclosure.
Reach for the MR on any 600 Series install where the power supply is in a locked closet or a ceiling space — the manual reset means a trip doesn't turn into a truck roll back to the panel.
