ABB 1KHL178012R0016A TRM01 Power Supply — ≥95 % Efficiency, IP20, Short-Circuit Proof

Description

Application Scenarios

On a three-line bottling hall retrofit in Eastern Europe, the maintenance lead was losing sleep over a recurring pattern: every time a nearby 132 kW compressor staged on, the 24 V rail in the S800 I/O cabinet would dip just enough to trip a few digital inputs, forcing a manual restart of the filler carousel. The original panel had been wired with three different-brand 240 W adapters daisy-chained on the same DIN row — none of them rated for the inrush sag. Replacing the tangle with a single 1KHL178012R0016A​ TRM01 (24 V / 16 A, 384 W headroom) cleaned the problem up in one afternoon. The wide-input 1KHL178012R0016A​ shrugged off the compressor stage sag at 210 V AC, the LED cluster on the front told the night shift “Power / Fault / Overload” at a glance, and the short-circuit self-recovery meant a miswired sensor no longer blew a fuse at 2 a.m. For plants still running heterogeneous PSUs in the same cabinet, consolidating onto the 1KHL178012R0016A​ tends to pay back in fewer nuisance callouts before the first year is out.

Parameter

Technical Principles and Innovative Values

• Innovation Point 1: Wide-Range Input with Active PFC.​ The 1KHL178012R0016A​ accepts anything from 90 to 264 V AC without manual voltage selection, which means the same spare travels between NA (120 V), EU (230 V), and Asian 200–240 V sites. Active power-factor correction keeps input current clean, reducing stress on upstream UPS and generator sets.
• Innovation Point 2: ≥95 % Efficiency & Low No-Load Loss.​ At 384 W rating, the 1KHL178012R0016A​ holds efficiency above 95 % across most of the load curve. In sealed cabinets with summer ambient pushing +45 °C, that extra few percent saved versus a 90 % unit translates to measurable reduction in internal convection load — and longer life for adjacent relays and comms modules.
• Innovation Point 3: Self-Recovering Protection Architecture.​ Short the 24 V output, and the 1KHL178012R0016A​ folds back current, lights the fault LED, and — once the short is cleared — automatically resumes regulation without a manual reset or fuse swap. For panels where “swap the PSU” isn’t the first thought of a junior electrician, this alone cuts mean time to repair (MTTR) noticeably.

Application Cases and Industry Value

A cement plant in Southern China ran its kiln DCS cabinet on four mismatched 240 W PSUs, one per I/O rack. During a line expansion, the added DI count pushed total 24 V draw to ~13 A — still under any single unit’s rating, but the lack of headroom meant summer peak + inverter harmonic ripple produced intermittent 24 V droops that the DCS logged as “IO Comm Loss.” The retrofit swapped all four bricks for two 1KHL178012R0016A​ TRM01 units in N+1 (each sized 16 A, so one could carry the full ~13 A load if the other tripped). Post-retrofit, the IO Comm Loss events dropped from 4–5 per month to zero over a six-month window, and the maintenance team standardized the 1KHL178012R0016A​ across three other kiln lines. Spare holding also simplified: one ABB part number instead of four vendor-specific SKUs.In a smaller-scale case, a regional water-treatment skid OEM replaced a budget 24 V / 10 A adapter (that kept failing in condensation-prone pump houses) with the 1KHL178012R0016A. The IP20-rated enclosure plus -20 °C low-end rating handled the unheated pump house winter, and the LED diagnostics let field techs confirm 24 V presence without cracking the multimeter pouch. Warranty claims on “dead PSU” dropped from ~8 % to under 1 % annually.

Related Product Combination Solutions

Pair the 1KHL178012R0016A​ with these ABB and ecosystem models for a coherent cabinet build:

• TRM02 / TRM03​ — Higher-current siblings in the same TRM mechanical footprint if the 1KHL178012R0016A​ (16 A) sits near its limit; same DIN profile, same LED diag.
• ABB AC800M PM891​ — The DCS controller CPU commonly fed by the 1KHL178012R0016A​ in compact process cabinets.
• ABB S800 I/O (e.g., DI840 / DO840)​ — Distributed I/O slices that draw from the 24 V rail the 1KHL178012R0016A​ supplies.
• ABB CI854A​ — Profibus communication interface module often co-located with the 1KHL178012R0016A​ in the same AC800M rack.
• ABB SNAT 602 TNI​ — Redundancy/diode module if you want true N+1 24 V redundancy feeding the same rail from two 1KHL178012R0016A​ units.
• Phoenix CONTACT UT 6-TMC​ — Electronic circuit protector on the 24 V output side, giving per-branch fusing downstream of the 1KHL178012R0016A​ without nuisance trips.