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DynaLock 6451 Series Exit Sensor Bar
Model 6451-48 Exit Sensor Bar, For 48” Door, US28
The non-latching 6451 Exit Sensor Bar offers immediate “no prior knowledge” egress by pushing on the bar at any point, with 15 Lbs. or less pressure. A light touch is all that is required to activate one or both internal optical sensors designed to detect an exit attempt. A built-in mechanical switch is also included as a redundant back-up release. Dual sensors, fail-safe electronics and successful testing in excess of one million cycles offer the user unparalleled reliability and low maintenance costs. Installation is simple. Complicated tune-in procedure and frequent call-backs for re-adjustment are not required.
Standard Features
- Optical sensing electronics controlling lock and signal functions have no moving parts to wear out.
- Built-in redundant mechanical switch for back-up release
- No tune-in required - complicated calibration and fine tuning are unnecessary and return calls are eliminated.
- Three standard bar lengths are offered - bar may be field or factory cut to suit special applications (See CLC Option)
- Bar may be activated by anything - human touch, briefcase, cane, wheelchair, etc. will activate the 6451. Ideal for ADA compliant installations.
- Weather resistant electronics - conformal coated circuitry resists moisture damage.
- All-metal construction - the entire bar, including end caps, is made of aircraft-grade aluminum, offering high resistance to abuse and vandalism.
- Armored power transfer cord - furnished standard.
- Dual output standard - DPDT contacts provide lock control and alarm shunting capabilities
- Built-in spike suppression - all input/output terminals are protected from line spikes.
- Variable input power - operating voltage 12 to 24 VAC/VDC.
- Contemporary design - architecturally engineered to offer one of the lowest profiles in the industry.
- Unit is non-handed - suitable for LHR or RHR doors.
Manufacturer Resources
Product Specs
- Subcategory:
- Accessories
- Series:
- 6451
- Product Group:
- Electronic Access Controls
- Product Subgroup:
- Parts and Accessories
- Commercial/Residential:
- Commercial
- Electronic:
- Yes
- Product Type:
- Parts and Accessories
- Warranty:
- Lifetime Warranty
- Bar Width:
- 2-7/16"
- Bar Projection:
- 2-3/8"
- Cycles:
- 1,000,000
- Parts and Accessories Type:
- Replacement Parts
- Product Attribute:
- Parts and Accessories
- Product Model:
- 6451-48
- Product Voltage:
- 12 to 24 VDC
- Product Finish:
- Satin Aluminum (US28)
- Product Category:
- Electronic Access Controls
- Department:
- Door Hardware
DynaLock 6451-48 US28 – Frequently Asked Questions
1) Will the DynaLock 6451-48 sensor bar fit a 48 inch wide door, and can it be cut down?
The 6451-48 is the 48 inch bar length in the 6451 family, which is offered in three standard lengths. If your opening needs something in between, the bar can be cut in the field or ordered factory-cut under the CLC option, so an odd door width isn't a dead end.
2) Do I need to order the DynaLock 6451 handed for a left hand reverse or right hand reverse door?
No handing to specify. The 6451 sensor bar is non-handed and mounts on LHR or RHR doors the same way, so one part number covers either swing.
3) If the door already has a mechanical exit device, is there a cheaper way to get a request-to-exit signal than the DynaLock 6451-48 sensor bar?
Yes. The 6451-48 is a standalone non-latching exit sensor bar with optical sensors, a redundant mechanical switch and DPDT outputs, mounted on the door face and powered at 12 to 24 VDC. If a panic device is already hung, a field-installable switch kit does the same signaling job inside the existing hardware: Command Access CRSREXKIT-ED is a field installable request to exit kit for Cal Royal 22/98 and Sargent 80 series with an SPDT switch, and CYREXKIT-ED is a field REX kit for Corbin 5000 and Yale 7000 exit devices rated 5A. For mortise locks, Command Access REX-KIT-ML is an ML1-series mortise lock request to exit kit. The difference is that those kits add a signal to hardware that already latches the door, while the 6451-48 is the egress device itself.
4) How much space does the DynaLock 6451 bar take up on the door face?
The bar measures 2-7/16 inches wide with a 2-3/8 inch projection off the door. That is a low profile for a push-to-exit bar, which matters when the door is in a tight vestibule or swings near a return wall or adjacent leaf.
5) What voltage does the DynaLock 6451 exit sensor bar run on?
It takes 12 to 24 volts, AC or DC, so it drops onto the same supply feeding most maglocks and electric strikes without a separate transformer. All input and output terminals have built-in spike suppression.
6) Can I get the DynaLock 6451 bar in a finish other than aluminum to match the other doors in the building?
Three finishes are offered: Satin Aluminum (US28), Dark Bronze (US10B) and Satin Brass (US4). The bar and end caps are aircraft-grade aluminum throughout, so the finish is carried on metal, not plastic trim.
7) Is a push-to-exit sensor bar a good choice for an ADA opening and for people carrying things?
It works well for that. The 6451 activates on optical sensing rather than mechanical force, so a briefcase, a cane, an elbow or a wheelchair footrest will release the door with 15 lbs or less of pressure at any point along the bar. There is no prior knowledge required to operate it.
8) What happens if the optical sensors in the DynaLock 6451 fail?
There are two layers behind them. The bar runs dual internal optical sensors, and a mechanical switch is built in as a redundant back-up release. The electronics are fail-safe and the unit is rated past 1,000,000 cycles, and the circuitry is conformal coated against moisture.
9) Can one DynaLock 6451 bar control the lock and shunt the alarm, or do I need a second contact?
One bar covers both. DPDT dual output is standard, giving you one set of contacts for lock control and a second for alarm shunting, so you are not adding a separate switch or relay for the shunt.
10) What is the difference between the DynaLock 6451-48 exit sensor bar and the Cal-Royal ACT-36 actuator bar?
The Cal-Royal ACT-36 is a 36 inch vertical actuator bar with logo and text for the 8600 series, so it is a component that works with that device family. The DynaLock 6451-48 is a self-contained electronic egress bar for a 48 inch door: optical sensing electronics, a built-in mechanical switch as backup, DPDT contacts for lock control and alarm shunting, and 12 to 24 VAC/VDC input. They are not interchangeable - the ACT-36 belongs to the 8600 series hardware, while the 6451-48 is a horizontal, non-handed bar suitable for LHR or RHR doors.
11) Does the DynaLock 6451-48 include an audible alarm, or do I need a separate sounder?
The 6451-48 provides DPDT contacts for lock control and alarm shunting, so the audible portion comes from a separate device driven by those contacts. Two options in that role are the Adams Rite 29-0218 piezo electric horn with multi-voltage compatibility and the RCI 914 Series delayed egress sounder with field-selectable volume output up to 102dB. Specify the sounder to match the signaling scheme you are wiring the bar into.
12) Do I have to order the DynaLock 6451 with PUSH TO EXIT engraved on the bar?
That's your call at order time. The bar is offered engraved PUSH TO EXIT or blank. Pick the engraved version where your AHJ or facility standard wants the egress instruction on the device itself.
13) Does the DynaLock 6451 need calibration after installation?
No tune-in procedure. The optical sensing is set up so there is no field calibration or fine tuning, which is the usual source of re-adjustment call-backs on touch-sense bars. It is built for commercial openings and the sensing electronics have no moving parts to wear.
14) Is the DynaLock 6451-48 suitable for an exterior door, or should I look at weather-rated accessories instead?
The 6451-48 uses conformal coated circuitry that resists moisture damage and all-metal aircraft-grade aluminum construction including the end caps, and it is rated for over 1,000,000 cycles. Weather protection on the strike side of the same opening is a separate item: the HES 1000-102 is a 1006 Series rain guard for rain or high dust areas. The bar's own weather resistance does not substitute for protecting an electric strike in the frame.
15) Can I mount the DynaLock 6451-48 with Securitron SAM brackets?
The 6451-48 is ordered with its own mounting options, including Securitron TSB mounting pads and a wood door mounting hardware kit. Securitron SAM Surface Mount Kit Accessories and the Securitron SWB SAM wood bracket are accessories for the SAM magnetic lock mounting system, not bar mounting hardware, so they address the lock side of the opening rather than the sensor bar. Specify the bar's own pad or wood door kit for the bar itself.
16) The 6451-48 has DPDT contacts - what if I need to switch more devices than that?
The 6451-48 provides dual output as standard, with DPDT contacts handling lock control and alarm shunting, and all input and output terminals carry built-in spike suppression. When one bar has to drive more loads than two sets of contacts allow, a relay distribution board such as the Locknetics RDB4 4 output relay board expands the switching. The bar itself remains the initiating device in either case.
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the DynaLock 6451-48 US28 come with a warranty?
Absolutely. The DynaLock 6451-48 US28 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the DynaLock 6451-48 US28?
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