Honeywell UDC1200 Universal Controller

Fits compact 1/16 DIN panel control where you need a universal process/temperature input, dual 4-digit LED, and up to three configurable outputs — including an optional FM Approved limit version (DC120L).

Key advantages

1/16 DIN Micro-Pro — compact universal TC/RTD/mV/mA/voltage input controller.
0.1% of span ±1 LSD — published accuracy with dual 4-digit LED display.
Flexible outputs — relay / SSR / linear V / linear mA; up to 3 outputs; optional 24 V transmitter power.
Optional RS485 — ASCII or Modbus plus digital input / remote setpoint options.

Typical applications

OEM panels needing a small 1/16 DIN temperature or process controller.
Retrofits replacing basic Micro-Pro style loops with universal inputs.
Machines that optionally add RS485 Modbus for supervisory polling.

Selection guide

Input — Universal (TC / RTD / linear mV / mA / voltage) — 1/16 DIN Micro-Pro; dual 4-digit display.
Accuracy — 0.1% of span ±1 LSD.
Outputs — Relay / SSR driver / linear voltage / linear mA options; up to 3 outputs; optional transmitter power 24 Vdc.
Supply — 90–264 Vac or 24–48 Vac/dc (order table).
Display — Dual 4-digit 7-segment LED (PV/SP configurations).
Communication — Optional RS485 ASCII, RS485 Modbus, digital input, basic remote setpoint.
IP — Front face NEMA 3 / IP65.
Ambient — Panel-mounted industrial control equipment (see document 51-52-03-35).
Mounting — 1/16 DIN 48×48 mm panel mount.
Approvals — NEMA 3 / IP65 front; FM Approved limit controller option (DC120L).

Common mistakes

Confusing UDC1200 with UDC1700 — same family document; lock the 1/16 DIN 48×48 mm UDC1200 order code.
Assuming FM limit approval on every unit — FM Approved limit is the DC120L option; state if limit duty is required.
Ordering communication (RS485 ASCII vs Modbus) without confirming the option on the order table.
Mixing supply expectations — 90–264 Vac vs 24–48 Vac/dc must match available panel power.
Expecting a detailed ambient numeric range on this page — OEM extract points to 51-52-03-35; send site ambient in the RFQ if critical.
Automation & control · Automation & control buying guide

When to RFQ / what to tell us

Input sensor/process type (TC / RTD / mV / mA / voltage) and range.
Output mix (relay / SSR driver / linear V / linear mA), count (up to 3), and 24 Vdc TX power need.
Supply (90–264 Vac or 24–48 Vac/dc) and 1/16 DIN cutout confirmation.
Communication (RS485 ASCII / Modbus), digital input, remote setpoint need.
Whether FM Approved limit (DC120L) is required.
Quantity, ship-to country.

Request a Quote · Get selection help

Specs

Spec	Value
SKU	41946
Brand	Honeywell
Model	UDC1200
Product type	other (universal controller, 1/16 DIN Micro-Pro)
Measuring range / input	Universal input (TC / RTD / linear mV / mA / voltage); dual 4-digit display
Accuracy	0.1% of span ±1 LSD
Output signal	Relay / SSR driver / linear voltage / linear mA options; up to 3 outputs; optional transmitter power 24 Vdc
Supply voltage	90–264 Vac or 24–48 Vac/dc (order table)
IP rating	Front face NEMA 3 / IP65
Ambient temperature	Panel-mounted industrial control equipment (see 51-52-03-35)
Display	Dual 4-digit 7-segment LED (PV/SP configurations)
Communication	Optional RS485 ASCII, RS485 Modbus, digital input, basic remote setpoint
Mounting	1/16 DIN 48×48 mm panel mount
Approvals	NEMA 3 / IP65 front; FM Approved limit controller option (DC120L)
Notes	Document 51-52-03-35 (June 2011) UDC1200 & UDC1700 Micro-Pro.

Documents

Honeywell UDC1200 specification (PDF)

FAQ

Q: What input types are supported? A: Universal TC / RTD / linear mV / mA / voltage on the 1/16 DIN Micro-Pro. State sensor type and span in the RFQ.

Q: How many outputs? A: Up to three among relay, SSR driver, linear voltage, and linear mA; optional 24 Vdc transmitter power. Lock the mix on the order code.

Q: Is there an FM limit version? A: OEM documentation lists FM Approved limit controller option DC120L. Ask for that option explicitly if limit duty is required.

Q: What should I send for a quote? A: Input type, outputs, supply, communications, limit option yes/no, quantity. Compatible with systems using Honeywell UDC1200 — we do not claim authorized-dealer status.