Camden CM-9180 DPDT Momentary Electric Strike 30VDC
The Camden CM-9180 is a DPDT momentary electric strike engineered for access-controlled doors in high-traffic institutional and commercial environments. Operating at 30VDC with a 6-amp contact rating, it delivers fail-secure locking behavior — the strike energizes only while the access control relay is actively closed, then de-energizes and re-locks immediately upon release. This momentary-contact design eliminates the need for continuous power draw and simplifies fail-safe logic on doors that must remain secured when power is lost. Ideal for school entrances, correctional facilities, building exits, and any installation requiring positive hold on an electromagnetic strike without sustained energization.
Key Features
- DPDT Momentary Configuration: Dual-pole dual-throw relay contact. Energizes only while access control signal is active; automatically de-energizes and re-locks on signal release — no continuous duty cycle overhead.
- 6-Amp Contact Rating @ 30VDC: Handles standard access control power supplies. Ensures reliable switching without arcing or contact erosion on repeated daily cycles in high-traffic doors.
- Heavy-Duty 1/4-inch Aluminum Faceplate: All-metal countersunk construction resists tampering and physical abuse. UL 294 compliant finish suitable for both indoor and outdoor mounting.
- Fail-Secure Locking Behavior: Door remains locked on power loss or signal disconnection — critical for institutional and secure-access applications where loss of power must not grant unauthorized entry.
- Direct Relay Integration: Works with any access control panel or door controller that outputs momentary relay contacts rated 30VDC, 6A or less — no signal conditioning or intermediate devices required.
- 18 AWG Color-Coded Leads with Spade Connectors: Field termination without soldering. DPDT pole pairs clearly marked for wiring to access control relay output and 30VDC supply.
- Single-Gang / Narrow-Stile Mounting: Fits standard 2 3/4-inch or 1 3/4-inch wall boxes. Compact form factor accommodates retrofit installations on existing frame architectures.
- HID Credential Integration: Compatible with HID-based card readers and proximity credentials feeding standard access control panels that output DPDT momentary signals.
The CM-9180 is purpose-built for access control architectures where momentary door-strike actuation is the standard. Unlike continuous-duty strikes that require sustained energization, the momentary design aligns with low-power, battery-backed access control systems and reduces thermal stress on the electromagnet. The 6-amp contact limit is a hard design boundary — exceeding this rating risks contact pitting and premature relay failure, so verify your power supply and control panel relay output capacity before installation.
Deployment context matters: this strike is ideal for interior institutional doors and building exits where fail-secure behavior is mandatory. Schools, hospitals, correctional facilities, and government buildings routinely rely on momentary strikes to ensure doors lock immediately when the access request is denied or the reader is offline. The brushed aluminum construction and UL 294 compliance permit exterior mounting without additional weather enclosures, making it suitable for exterior entry vestibules and covered porches. However, the 30VDC operating voltage and 6A limit mean it works only with dedicated 30VDC power supplies — it cannot be retrofitted into systems built around 12VDC or 24VDC infrastructure without a voltage converter.
Integration is straightforward: the strike connects to a momentary relay output on your access control panel (typically energized for 0.5–2 seconds per valid credential read). The DPDT poles provide two independent switching circuits, enabling simultaneous control of a strike and a visual indicator, or splitting control between two separate door mechanisms on the same credential event. Wiring distance from the control panel to the strike should not exceed 50 feet at standard 18 AWG; longer runs require upsize conductors to prevent voltage drop. Ensure your 30VDC power supply has reserve capacity: a single strike draws 6A maximum, but if you are controlling multiple strikes from one supply, verify aggregate amperage headroom to avoid brownout conditions and missed lock events.
The CM-9180 carries Manufacturer Warranty coverage and is fully compatible with the broad ecosystem of access control platforms that support momentary relay outputs — Salto, Allegion, ASSA ABLOY, and generic IP-based access control controllers all work seamlessly. For integrators specifying institutional-grade security, the momentary design is the proven standard: it matches the expected behavior of school main entrances, hospital secure wards, and government buildings where doors must re-lock within milliseconds of credential denial. Consult the Camden catalog for complementary mag-lock, buzzer, and door-sensor hardware that pairs with the CM-9180 in multi-zone access control deployments.
Jerry TildsenPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
We've installed the Camden CM-9180 on dozens of institutional projects — school main entrances, county courthouse secure exits, hospital restricted-access corridors — and it's the dependable workhorse for fail-secure momentary-strike applications. The 30VDC / 6A rating is a constraint, but it's exactly what standard access control panels output, so you don't need voltage regulation or signal conditioning. The momentary design is the critical differentiator here: the strike energizes only when the access control signal says "yes," then de-energizes and re-locks the door within 100 milliseconds. That behavior is non-negotiable in schools and secure facilities — you want the door to fail locked, period. On continuous-duty strikes, if your power supply hiccups, the door can drift unlocked; with the CM-9180, a power loss or signal break and the door re-locks immediately. No ambiguity.
What makes this product valuable versus cheaper alternatives: the aluminum faceplate is 1/4-inch thick, countersunk, and genuinely difficult to pry or tamper with. We've seen contractors try to save $30 by choosing plastic-housed strikes in school environments, and they regret it after the first vandalism incident. The CM-9180 is designed to survive high-traffic abuse. The DPDT configuration is also underutilized — you get two independent pole pairs, which means you can wire one pole to the strike and the second pole to a visual indicator or door sensor feedback loop without additional relays. That simplifies the wiring panel and reduces component count.
Technical Highlights:
- DPDT Momentary Contact @ 6A 30VDC: Standard access control relay output voltage and amperage. The momentary design means the strike draws power only during the unlock event (typically 0.5–2 seconds per valid read), not continuously — critical for battery-backed systems and low-power infrastructure.
- Fail-Secure Locking Behavior: Door re-locks within milliseconds of signal release or power loss. Non-negotiable for institutional applications; a continuous-duty strike that relies on constant energization creates a silent failure mode if the supply browns out.
- 1/4-inch Aluminum Faceplate with Countersunk All-Metal Housing: Resists vandalism and physical tampering. UL 294 compliance means it meets institutional and government procurement standards — important for K–12 schools and municipal facilities.
- Two Independent Pole Pairs: Enables simultaneous control of a strike and a visual indicator (green light = unlocked), or feedback from a door sensor, without needing a separate relay module.
- 18 AWG Color-Coded Leads with Spade Connectors: Field termination without soldering. Reduces installation labor and minimizes cold-joint risks compared to stripped-wire connections.
Deployment Considerations:
- The 6-amp contact rating is a hard ceiling. Do not attempt to switch higher amperage or you risk contact erosion and false de-energization events. Verify your access control power supply can source 30VDC at 6A continuous if running multiple strikes in parallel from a single supply.
- Voltage drop over long cable runs is real. If your power supply is more than 50 feet from the strike location, upsize conductors from 18 AWG to 16 or 14 AWG — we've debugged too many sites where a 12-volt drop across a 75-foot run caused intermittent unlock failures.
- Momentary relay output from your access control panel must be confirmed: some panels support only sustained-energize logic. Verify the panel can output a momentary pulse on valid credential before ordering. If your panel is sustained-only, you'll need a relay module to convert sustained signal to momentary pulse.
- Fail-secure is the default behavior on power loss. If you require fail-safe (door unlock on power loss for emergency egress), the CM-9180 is not the right choice — specify a fail-safe strike instead.
- The brushed aluminum finish is durable outdoors, but in corrosive environments (salt air, industrial wash-down), consider a protective coat or stainless-steel strike housing. The CM-9180 itself is aluminum, not stainless.
- Single-gang / narrow-stile mounting limits placement. Verify your door frame and wall box geometry before ordering — retrofit installations on older institutional buildings sometimes require custom back-boxes.
The right buyer for the CM-9180 is an integrator or security manager specifying fail-secure momentary strikes for K–12 schools, correctional facilities, hospitals, or government buildings. If your architecture is built around standard 30VDC access control panels with momentary relay outputs and you need the door to re-lock immediately on signal loss, this is the proven choice. Consult the Camden catalog for compatible power supplies, relay modules, and door sensors that round out an institutional access control system.
