PAM-4 — encapsulated multi-voltage relay module with a single SPDT (Form C) contact set rated 10 A, and a coil that accepts any DC voltage from 9 to 40 VDC.
The PAM-4 is a remote relay for control or status feedback: a fire alarm panel, power supply or other DC output energizes the coil, and the Form C contact switches a separate circuit. Form C means one common terminal with both a normally open and a normally closed contact, so the same relay can make or break the controlled circuit. Typical jobs listed by the manufacturer include fire alarm, HVAC, temperature control, security, energy management and lighting control. The wide 9–40 VDC coil range lets one part number cover both 12 VDC and 24 VDC systems. A red LED lights when the coil is energized, which gives a quick visual check during testing. The module is fully encapsulated and comes with 12 in. (305 mm) 18 AWG wire leads, double-sided adhesive tape, a self-drilling mounting screw and six wire nuts, so it can be stuck, screwed or simply placed in a backbox.
Specifications
| Type |
Encapsulated multi-voltage relay module, single SPDT (Form C) with LED |
| Coil voltage |
9 to 40 VDC |
| Coil current |
0.015 A per position @ 24 VDC or 12 VDC |
| Relay |
UL-recognized SPDT |
| Contact rating |
10.0 A @ 120 VAC; 7.0 A @ 24 VDC; 250 µA @ 5 VDC |
| Indicator |
Red LED, lit when the relay coil is energized |
| Ambient temperature range |
−58°F to 185°F (−50°C to 85°C) |
| Dimensions |
1.5 in. H x 1.0 in. W x 0.875 in. D (3.81 x 2.54 x 2.22 cm) |
| Wire leads |
12 in. (30.48 cm), 18 AWG (0.75 mm²) |
| Contact lead colors |
Blue = common (C); yellow = normally closed (NC); orange = normally open (NO) |
| Mounting |
Double-sided adhesive tape, self-drilling screw, or placed loose in a backbox |
| Included |
Relay with LED, double-sided adhesive tape, mounting screw, 12 in. leads, six wire nuts |
| Certifications |
UL certified S3403; MEA 73-92-E, Volume XXI; CSFM 7300-1004:101 |
Installation notes
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DC coil only: the PAM-4 coil is specified for 9 to 40 VDC. Where the relay must be driven from 24 VAC or 115 VAC, the same data sheet lists the PAM-1, which accepts 24 VAC, 24 VDC or 115 VAC.
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Size the load to the right contact rating: the contacts are rated 10 A at 120 VAC but only 7 A at 24 VDC. Check the load against the DC figure when switching DC circuits such as door holders or a power supply output.
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Low-level signal switching: the contact is also rated 250 µA at 5 VDC, so the PAM-4 can pass a dry-contact status signal into a building management or security input.
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Coil polarity: the coil leads are red and black and are polarity-marked (+/−) on the data sheet wiring diagram. Connect them as shown there; contact leads are blue (C), yellow (NC) and orange (NO).
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Budget the coil current: each PAM-4 draws 0.015 A (15 mA) when energized. Add this to the load on the panel output or auxiliary power circuit that drives it.
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Mounting options: use the adhesive tape, the supplied self-drilling screw, or place the module loose in a backbox. The six supplied wire nuts cover the coil and contact connections.
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Certification status: the manufacturer notes that some modules or applications may not be certified by every approval agency. Confirm the certification required by the authority having jurisdiction for the specific application.
Related models and accessories
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PAM-1 — single SPDT relay with LED, 10 A Form C contacts, coil energized by 24 VAC, 24 VDC or 115 VAC.
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PAM-2 — single SPDT relay with LED, 7 A Form C contacts, coil energized by 12 VDC or 24 VDC.
Specifications taken from the Honeywell / Air Products & Controls data sheet “PAM-1, PAM-2, and PAM-4 Multi-Voltage Relay Modules,” document DN-6755 (©2014). Manufacturer specifications are subject to change without notice.
Documents
FAQ
Can the PAM-4 be driven from 24 VAC or 120 VAC?
No. The PAM-4 coil is DC only, 9 to 40 VDC. The PAM-1 is the version that accepts 24 VAC, 24 VDC or 115 VAC.
Does one part cover 12 V and 24 V systems?
Yes. The coil operates anywhere from 9 to 40 VDC and draws 0.015 A at 12 or 24 VDC.
What can the contacts switch?
One SPDT (Form C) set rated 10 A at 120 VAC, 7 A at 24 VDC and 250 µA at 5 VDC.
What comes in the package?
The relay with LED, double-sided adhesive tape, a mounting screw, 12 in. leads and six wire nuts.
