The RCI 960-MA 28 Maintained Key Switch is a commercial-grade, tamper-resistant key-operated switch designed for secure control of electronic access systems, electric locking hardware, and automatic door equipment.

Manufactured by RCI, a dormakaba brand, this switch features a single-pole double-throw (SPDT) maintained contact, a 1/4-inch extruded aluminum faceplate, tamper-resistant mounting hardware, and a brushed anodized aluminum finish.

Unlike a momentary key switch that automatically returns to its original position, the maintained-action switch holds its selected contact position until an authorized keyholder changes it.

This makes the RCI 960-MA 28 suitable for applications requiring persistent key-controlled switching, including access control enable/disable circuits, authorized operating modes, and compatible electric locking control systems.

The standard 3" wide × 4-3/4" high faceplate mounts to a conventional single-gang electrical box.

Its beveled aluminum edges and stainless steel tamper-resistant mounting screws help discourage unauthorized access to the switch and wiring.

The switch accepts compatible 1-1/8" or 1-1/4" mortise cylinders with straight or clover cams, allowing the installation to be configured for the facility's existing keying system.

The package includes tamper-resistant screws and the corresponding spanner installation bit.

Finished in 28 Brushed Anodized Aluminum, the RCI 960-MA coordinates with aluminum storefront systems, commercial door hardware, and modern access control installations.

Important: The mortise key cylinder and keys are sold separately.

Key Features and Benefits

Maintained-Action Key Switch

• Maintained electrical switching operation.

• Single-pole double-throw (SPDT) contacts.

• Normally Open and Normally Closed contact positions.

• Maintains the selected contact state until operated again.

• Provides key-controlled switching for compatible access control equipment.

• Suitable for applications requiring an authorized maintained control position.

Commercial Electrical Contact Ratings

• 3 amps at 125VAC/VDC.

• 1 amp at 250VAC/VDC.

• SPDT contact configuration.

• Common, Normally Open, and Normally Closed connections.

• Designed for appropriately rated switching circuits.

Electrical Note: These values are switch contact ratings, not the operating voltage of a powered controller. Confirm the connected equipment's electrical requirements and use an appropriately rated relay or controller where necessary.

Tamper-Resistant Construction

• Durable 1/4" thick extruded aluminum faceplate.

• Beveled architectural edges.

• Stainless steel tamper-resistant mounting screws.

• Includes specialized spanner installation bit.

• Helps discourage unauthorized switch removal.

• Designed for high-use commercial environments.

Standard Single-Gang Mounting

• Standard faceplate dimensions: 3" × 4-3/4".

• Fits compatible single-gang electrical boxes.

• Suitable for commercial wall-mounted access controls.

• One-piece bracket with two-position switch holder.

• Compatible with properly prepared commercial electrical installations.

Mortise Cylinder Compatibility

• Accepts standard mortise cylinders.

• Compatible with straight or clover cams.

• Supports 1-1/8" cylinder lengths.

• Supports 1-1/4" cylinder lengths.

• Allows compatibility with selected existing commercial key systems.

Cylinder and keys are not included.

Brushed Anodized Aluminum Finish

• RCI finish code: 28.

• Brushed anodized aluminum appearance.

• Coordinates with satin aluminum commercial entrances.

• Suitable for matching storefront and architectural door hardware.

Commercial Access Control Applications

The RCI 960-MA 28 may be used as a control input for compatible:

• Electromagnetic lock control systems

• Electric strike control circuits

• Automatic door control systems

• Access control panels

• Key-operated enable/disable controls

• Security system auxiliary circuits

• Commercial door control relays

The actual controlled function depends on the electrical design and wiring.

Manufacturer Warranty

• Current U.S. manufacturer documentation lists a 3-year limited warranty.

• Warranty subject to dormakaba terms and conditions.

Technical Specifications

Specification	Details
Manufacturer	RCI by dormakaba
Manufacturer SKU	960-MA 28
Alternate Formatting	960-MA-28
Product Series	960
Product Type	Tamper-Resistant Key Switch
Switch Action	Maintained
Configuration	SPDT
Normally Open Contact	Yes
Normally Closed Contact	Yes
Rating at 125VAC/VDC	3A
Rating at 250VAC/VDC	1A
Mounting	Single-Gang Electrical Box
Faceplate Width	3"
Faceplate Height	4-3/4"
Faceplate Thickness	1/4"
Faceplate Material	Extruded Aluminum
Finish	Brushed Anodized Aluminum
Manufacturer Finish Code	28
Cylinder Type	Mortise
Compatible Cam Types	Straight or Clover
Compatible Cylinder Lengths	1-1/8" or 1-1/4"
Cylinder Included	No
LED Indicator	No
Reset/Override Markings	No
Tamper-Resistant Screws	Included
Spanner Bit	Included
Warranty	3-Year Limited
Selling Unit	Each

How the RCI 960-MA 28 Works

1. Initial Switch Position

The SPDT switch rests in the position selected by the previous authorized key operation.

2. Authorized Key Operation

An authorized user inserts the compatible mortise cylinder key and turns it.

3. Contact State Changes

The key-operated switch changes the connection between its common terminal and the selected Normally Open or Normally Closed contact.

4. Maintained Position

The electrical state remains in its selected position instead of automatically returning like a momentary switch.

5. Connected Equipment Responds

A compatible access control system, relay, or other control circuit responds according to the wiring configuration.

6. Returning to the Previous State

The authorized keyholder operates the switch again to change the contact state.

Recommended Applications

Commercial Office Buildings

• Authorized access control switching

• Restricted-area control panels

• Key-controlled door operating modes

• Commercial security installations

Retail Stores and Shopping Centers

• Storefront access control

• Employee service entrances

• Security control stations

• Authorized automatic door functions

Warehouses and Industrial Facilities

• Key-controlled security circuits

• Personnel access systems

• Industrial door controls

• Maintenance and service access panels

Hospitals and Institutional Facilities

• Authorized staff control points

• Security system interfaces

• Commercial access control installations

• Restricted facility operating controls

Automatic Door Systems

• Compatible automatic door control inputs

• Authorized operating-mode selection

• Key-operated enable/disable circuits

• Door system control relays

Standard Package Contents

• (1) RCI 960-MA 28 maintained key switch assembly

• Brushed anodized aluminum faceplate

• SPDT maintained switch

• Cylinder/switch mounting bracket

• Stainless steel tamper-resistant mounting screws

• Spanner installation bit

Not Included

• Mortise key cylinder

• Keys

• Electrical back box

• Access control controller

• Electric strike or magnetic lock

• External power supply

• LED indicator

• Additional switch contacts

Compatible Accessories

RCI 96-CYLKA

• Mortise cylinder with straight cam

• Keyed alike configuration

RCI 96-CYLKD

• Mortise cylinder with straight cam

• Keyed differently configuration

Confirm the required cylinder length, cam design, and keying before ordering.

Installation Overview

Step 1 – Verify the Electrical Application

Confirm that maintained SPDT operation is appropriate for the connected access control or door control equipment.

Step 2 – Verify the Mounting Location

Select a compatible single-gang electrical box and confirm installation clearance.

Step 3 – Select the Mortise Cylinder

Choose a compatible 1-1/8" or 1-1/4" mortise cylinder with an approved cam configuration.

Step 4 – Install the Cylinder

Position the cylinder through the faceplate and secure it to the mounting bracket using the manufacturer's instructions.

Step 5 – Position the Switch

Install the switch in the designated bracket position for reliable cam engagement.

Step 6 – Connect Wiring

Wire the SPDT switch according to the manufacturer's wiring diagram and the requirements of the connected control system.

Step 7 – Mount the Faceplate

Secure the assembly using the supplied tamper-resistant screws and spanner bit.

Step 8 – Test Operation

Verify that key operation changes the contact state correctly and that the maintained position behaves as intended.

Important Ordering and Installation Notes

• This is a maintained switch, not a momentary switch.

• One SPDT maintained switch is supplied.

• Cylinder and keys are sold separately.

• An LED is not included in the standard model.

• This is the standard single-gang faceplate, not the narrow-stile version.

• The switch does not independently provide electrical power.

• The switch does not contain an access control reader or credential system.

• Electrical loads must remain within the manufacturer's contact ratings.

• Emergency egress and fire-release functions must not be compromised by a maintained switch.

• Installation by a qualified access control technician or electrician is recommended.

Why Choose the RCI 960-MA 28?

The RCI 960-MA 28 Maintained Key Switch provides durable, key-controlled switching for commercial access control and door automation applications.

With its SPDT maintained contacts, tamper-resistant aluminum faceplate, standard single-gang mounting, compatible mortise cylinder options, and brushed anodized aluminum finish, it offers a dependable control solution for contractors, locksmiths, security integrators, and facility maintenance departments.