Detex PB-2100 Series Push Butt...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$481.00
$414.36
Detex PB-2100 Series Push Button Control with Shroud and Form C Terminals

Detex PB-2100 Series Push Button Control with Shroud and Form C Terminals

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Model: PB-2138-3

In Stock (leaves warehouse same day if ordered before 3pm ET)

$481.00
$414.36
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Detex PB-2100 Series Push Button Control with Shroud and Form C Terminals

Professional Access Control Push Button Solution

The Detex PB-2100 Series push button controls provide reliable lock and magnetic lock release functionality for access control and request to exit applications. This single-gang model features a beige shroud design with Form C terminals for versatile wiring configurations. Designed to fit standard single switch boxes with approximately 2" mounting depth, these controls offer fast installation and aesthetically pleasing design that complements any décor.

Professional Features & Benefits

  • Compact Installation: Fits single switch box with flush or surface mounting at approximately 2" depth for versatile placement options.
  • Form C Terminal Configuration: Provides both normally open and normally closed contacts for flexible wiring in various access control systems.
  • Fast Installation: Simple mounting design allows for quick and easy installation in new or retrofit applications.
  • Aesthetic Design: Beige shroud finish provides an attractive appearance that fits any décor while maintaining professional functionality.
  • Versatile Applications: Designed for lock or magnetic lock release in access control and request to exit applications.
  • Series Compatibility: Part of the comprehensive PB-2000 series offering multiple mounting and finish options including PB-2158-3 mullion-mount and PB-2048-3 mushroom styles.
  • Manufacturer Warranty: 1 Year Limited Manufacturers Warranty for added confidence and protection.

Technical Specifications

  • Commercial/Residential: Commercial
  • Electronic: Yes
  • Product Category: Electronic Access Controls
  • Product Group: Electronic Access Controls
  • Product Model: PB-2138-3
  • Product Subgroup: Sensors, Switches, Relays and Timers
  • Product Type: Push Button
  • Series: 2100
  • Subcategory: Accessories
  • Warranty: 1 Year Limited Manufacturers Warranty

Installation & Operation

  1. Verify electrical requirements match available power supply and confirm current capacity before proceeding with installation.
  2. Disconnect power supply before beginning installation. Follow all applicable electrical codes and safety procedures.
  3. Mount the unit in a standard single switch box ensuring adequate clearance for wiring access with approximately 2" mounting depth.
  4. Route and connect wiring according to manufacturer wiring diagrams. Use Form C terminal configuration for appropriate normally open and normally closed connections.
  5. Configure operational settings for lock or magnetic lock release per application requirements.
  6. Restore power and test all functions including normal operation and integration with connected access control systems.
  7. Complete final inspection and document settings. Refer to manufacturer documentation for complete wiring diagrams, programming instructions, and troubleshooting.

Professional Applications

  • Commercial Building Security Systems
  • Retail Loss Prevention
  • Healthcare Facility Access Control
  • Educational Institution Safety Systems
  • Industrial Facility Monitoring
  • Emergency Exit Compliance
  • Request to Exit Applications

Why Choose Detex Quality?

Detex push button controls deliver professional-grade reliability with simple installation design and versatile Form C terminal configuration for demanding commercial applications. Backed by a 1 Year Limited Manufacturers Warranty, these controls are engineered for dependable performance in access control and security systems where reliable operation is essential.



Installation Instructions (80-800)
Installation Instructions (90-800)

Product Specs

Subcategory:
Accessories
Series:
2100
Product Group:
Electronic Access Controls
Product Subgroup:
Sensors, Switches, Relays and Timers
Commercial/Residential:
Commercial
Product Type:
Push Button
Electronic:
Yes
Warranty:
1 Year Limited Manufacturers Warranty
Product Model:
PB-2138-3
Product Category:
Electronic Access Controls
Department:
Door Hardware

Detex PB-2138-3 – Frequently Asked Questions

1) Will the Detex PB-2138-3 push button fit a standard single-gang switch box?
Yes. The PB-2138-3 mounts in a standard single switch box, flush or surface, at roughly 2 inches of mounting depth. Make sure the box has that depth clear behind it for the wiring, since the terminals sit at the back of the unit.
2) What does Form C mean on the Detex PB-2100 push button, and can I wire it to a mag lock?
Form C gives you a common with both a normally open and a normally closed contact, so one button can drop a mag lock (break the NC leg) and signal a panel or REX input at the same time (make the NO leg). That is exactly what the PB-2100 controls are built for: lock and magnetic lock release, and request to exit.
3) I need a Detex push button on a narrow storefront mullion, not in a wall box. Which one do I order?
Order the mullion-mount version. The PB-2100 Series is offered three ways: beige shroud single-gang, aluminum mushroom single-gang, and an aluminum shroud mullion-mount. Only the mullion-mount option is shaped for the narrow face of a storefront mullion; the two single-gang versions need a switch box.
4) Does the Detex PB-2138-3 push button work as a request to exit device for a mag-locked door?
Yes, that is one of its two stated jobs. Wired through the Form C terminals, the button breaks power to the mag lock and simultaneously sends a request to exit signal to the access control panel so the door opening is not read as a forced entry.
5) What is the difference between a Detex PB-2138-3 push button and a ROFU 9300 push button?
Both are single push button controls for access control release. The Detex PB-2138-3 is a beige shroud button on a single-gang plate with Form C terminals, giving both normally open and normally closed contacts at the terminal block. The ROFU 9300 is a blue single push button with a DPDT contact arrangement rated 0.5A at 250VAC and a momentary action. If a circuit needs two independent switched pairs from one press, the DPDT arrangement of the 9300 is the one that provides it; if the requirement is a single changeover contact wired for either fail-safe or fail-secure release, the Form C terminals on the PB-2138-3 cover it.
6) The button is going on a narrow aluminum mullion, not into a switch box in the wall. What should I use?
The Detex 2100 Series includes an aluminum shroud version built for mullion mounting with Form C terminals, which is the version to order when the button lands on a storefront mullion rather than a single-gang box. The ROFU comparables are described by head style and contact rating rather than by a mullion-mount body: the 9700 is a 1-1/4 inch red metallic flush head with SPST contacts at 3A/240V, which is the narrowest head among them, but the mullion-mount plate itself is what the Detex aluminum shroud version provides.
7) Can I run a maglock directly off a ROFU 9300 instead of a Detex 2100 Series button?
Watch the contact rating before you do. The ROFU 9300 is rated 0.5A at 250VAC, while the ROFU 9400, 9600, and 9700 are each rated 3A at 240V. A maglock drawing more than half an amp through the button contacts is outside what the 9300 is rated to carry, so either the higher-rated ROFU heads or a relay between the button and the lock is the correct approach. The Detex PB-2138-3 is a commercial push button control for lock and magnetic lock release with Form C terminals, so its normally closed side can break the maglock circuit directly and its normally open side can signal the panel from the same press.
8) My panel needs both a normally open and a normally closed contact from one button. Which of these will do that?
The Detex PB-2138-3 uses Form C terminals, which give a normally open and a normally closed contact off a single common. Among the ROFU comparables, the 9400 is SPDT and the 9300 is DPDT, both changeover arrangements that provide a normally open and a normally closed side. The ROFU 9600 and ROFU 9700 are SPST, a single contact that either makes or breaks, so neither supplies the second contact a panel needs for a separate request to exit signal.
9) Shroud or mushroom head on a Detex PB-2100 push button, which should I use?
The shroud version recesses the button behind a collar, so a passerby or a cart cannot bump it open. The mushroom head sticks out and is easier to hit fast with a palm or an elbow, which is what you want at a door people leave through in a hurry or with their hands full. Both carry the same Form C wiring, so the choice is purely about how deliberate you want the press to be.
10) What else could I use instead of a Detex PB-2100 push button for a door release?
ROFU makes several single-button releases we carry. The ROFU 9300 is a DPDT momentary blue button rated 0.5A at 250VAC, so it gives you two independent switched circuits from one press. If you want a large palm target, the ROFU 9400 is a 1-1/2 inch red mushroom, SPDT at 3A/240V, and the ROFU 9600 is a 2-3/8 inch red mushroom, SPST at 3A/240V. The ROFU 9700 is a 1-1/4 inch red metallic flush head, SPST at 3A/240V, closest in feel to a flush shrouded button. Note the SPST versions (9600, 9700) give you a single make-or-break contact only, not the normally open plus normally closed pair the Detex Form C terminals provide.
11) Is the ROFU 9600 a direct replacement for a Detex 2100 Series mushroom button?
They are not interchangeable one for one. The Detex 2100 Series mushroom is an aluminum head on a single-gang plate with Form C terminals, so it lands on a standard single switch box and offers a changeover contact. The ROFU 9600 is a 2-3/8 inch red mushroom with SPST contacts rated 3A at 240V, a larger head in a different color with a single contact rather than a changeover. Swapping one for the other changes the actuator size, the finish, and the number of contacts available to the panel, so the existing wiring and the plate opening both need to be checked first.
12) I want a low-profile button that will not get bumped by a cart in a corridor. Is a mushroom button the wrong choice?
For a corridor where accidental release matters, the raised mushroom heads are the easier ones to strike by accident: the ROFU 9600 is a 2-3/8 inch mushroom and the ROFU 9400 is a 1-1/2 inch mushroom. The ROFU 9700 is a 1-1/4 inch red metallic flush head, the flattest of the ROFU set. The Detex PB-2138-3 takes the other approach with a beige shroud around the button, which recesses the actuator behind the shroud wall so a passing cart or shoulder does not reach it, while keeping the single-gang footprint and Form C terminals.
13) We standardized on red buttons across the facility. Does the Detex 2100 Series match?
The Detex 2100 Series push buttons are supplied with a beige shroud, an aluminum shroud for mullion mounting, or an aluminum mushroom head. All four ROFU comparables are red: the 9300 is described as blue on the single push button, while the 9400 and 9600 are red mushroom buttons and the 9700 is a red metallic flush head. If the standard across the facility is a red actuator, the ROFU 9400, 9600, and 9700 carry it; if the standard is a neutral beige or aluminum finish to blend with the wall plates, the Detex 2100 Series versions are the ones that match.
14) Do the Detex PB-2100 push buttons come in a finish that matches aluminum storefront trim?
Two of the three are aluminum: the mushroom single-gang and the mullion-mount shroud. The third is a beige shroud, which blends better against painted drywall or a beige device plate than against an aluminum frame.
15) Is the Detex PB-2138-3 push button rated for commercial use or is it a residential device?
Commercial. The PB-2138-3 is a commercial electronic access control device, used on building security systems, healthcare and school access control, retail loss prevention, and emergency exit and request to exit openings.
16) Are there wiring diagrams available for the Detex PB-2100 push button?
Yes. Detex publishes two installation instruction sheets for these controls, 80-800 and 90-800, and both are on file with the product. They carry the terminal wiring detail you need for the Form C connections and the mounting steps for the switch box.
How fast can I get the Detex PB-2138-3 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Detex PB-2138-3 come with a warranty?
Absolutely. The Detex PB-2138-3 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 Detex PB-2138-3?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Detex PB-2138-3 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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