SECO-LARM SD-998C-D3Q/D3AQ Surface-Mount Electric Rim Strike Installation and Operation Manual

This manual provides installation instructions, wiring diagrams, and troubleshooting guides for the SECO-LARM SD-998C-D3Q and SD-998C-D3AQ surface-mount…

Brand: SECO-LARM
Document type: User Manual
Language: English
Pages: 4
File format: PDF
File size: 482 KB
Published: 19 October, 2026
Updated: 19 October, 2026
MD5 checksum: D14D16A78300810129E56BAB47A0DD0F
PDF: SECO-LARM SD-998C-D3Q/D3AQ Surface-Mount Electric Rim Strike Installation and Operation Manual PDF

About this manual

The SECO-LARM Surface-Mount Electric Rim Strikes (models SD-998C-D3Q and SD-998C-D3AQ) are designed for use with rim-type exit devices featuring a Pullman latch bolt. These units operate on 12/24 VDC, offer selectable fail-safe or fail-secure modes, and feature a non-polarized connection suitable for indoor metal or wood frames.

What's inside

Features
Parts List
Specifications
Installation
Selecting Fail-Safe/Fail-Secure
Wiring Diagram
Troubleshooting

Specifications

Operating voltage	12/24 VDC
Static strength	1,500-lb (6673N)
Endurance	250,000 cycles
Current draw (12VDC)	540mA
Current draw (24VDC)	270mA
Operating temperature	-10°~49° C

Frequently asked questions

What latch throw does the SD-998C-D3Q accommodate?

The SD-998C-D3Q accommodates a 3/4" (19mm) Pullman latch.

What is the maximum latch throw for the SD-998C-D3AQ?

The SD-998C-D3AQ accommodates a 1/2" (13mm) Pullman latch.

Can the strike be used with either right-hand or left-handed doors?

Yes, it has a reversible non-handed design that fits either side.

Is the connection polarized?

No, the strike features a non-polarized connection.

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